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The Following brands are available based on your search.

  • Bosch
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    Walker

Best Selling Genuine Bmw O2 Sensors

  • We Stock the following top leading brands, including Bosch, Denso
  • Constantly Updated Inventory of Bmw Replacement O2 Sensor Parts

We stock O2 Sensor parts for most Bmw models, including 318i, 318is, 318ti, 320i, 323Ci, 323i, 325Ci, 325i, 325is, 325xi, 328i, 328i xDrive, 328is, 328xi, 330Ci, 330i, 330xi, 335d, 335i, 335xi, 525i, 525xi, 528i, 530i, 530xi, 535i, 535i xDrive, 540i, 545i, 550i, 635CSi, 645Ci, 650i, 735i, 740i, 740iL, 745Li, 745i, 750Li, 750i, 750iL, M3, M5, M6, X3, X5, Z3, Z4.

Bosch
Qty:
$64.45
Bosch Oxygen Sensor  Upstream
  • Bosch Oxygen Sensor
  • Actual OE Oxygen Sensor
  • Product Attributes:
    • Automotive Item Weight (lbs): 0.242508 Lb
    • Connector Gender: Female
    • Connector Shape: Female Pin
    • Hex Size (Oxygen Sensor): 22 Mm
    • Length (Sealing Surface To End Of Connector): 11.417329 In
    • Mounting Type: Threaded
    • Oxygen Sensor Type: Narrow-band Heated
    • Sensor Type: Heated
  • Bosch leads the way in oxygen sensor technology and innovation. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.
  • Suggested Purchase Quantity: 2
    • Most jobs typically require 2 of this item.
Brand: Bosch
Position: Upstream
Additional Fitment Information:
Vehicle Position Block Engine CID CC
2005 - BMW 320i Upstream L 6 Cyl 2.2L 132 2171
Bosch
Qty:
$72.77
Bosch Oxygen Sensor  Downstream
  • Bosch Oxygen Sensor
  • Actual OE Oxygen Sensor
  • Product Attributes:
    • Automotive Item Weight (lbs): 0.34833 Lb
    • Connector Shape: Male Pin
    • Hex Size (Oxygen Sensor): 22 Mm
    • Length (Sealing Surface To End Of Connector): 38.385848 In
    • Mounting Type: Threaded
    • Oxygen Sensor Type: Narrow-band Heated
    • Sensor Type: Heated
  • Bosch leads the way in oxygen sensor technology and innovation. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.
  • Suggested Purchase Quantity: 2
    • Most jobs typically require 2 of this item.
Brand: Bosch
Position: Downstream
Additional Fitment Information:
Vehicle Position Block Engine CID CC
2005 - BMW 320i Downstream L 6 Cyl 2.2L 132 2171
Bosch
Qty:
$64.45
Bosch Oxygen Sensor  Upstream
  • Bosch Oxygen Sensor
  • To 02/2003
  • Actual OE Oxygen Sensor
  • Product Attributes:
    • Automotive Item Weight (lbs): 0.242508 Lb
    • Connector Gender: Female
    • Connector Shape: Female Pin
    • Hex Size (Oxygen Sensor): 22 Mm
    • Length (Sealing Surface To End Of Connector): 11.417329 In
    • Mounting Type: Threaded
    • Oxygen Sensor Type: Narrow-band Heated
    • Sensor Type: Heated
  • Bosch leads the way in oxygen sensor technology and innovation. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.
  • Suggested Purchase Quantity: 2
    • Most jobs typically require 2 of this item.
Brand: Bosch
Position: Upstream
Additional Fitment Information:
Vehicle Position Block Engine CID CC
2003 - BMW 330i Upstream L 6 Cyl 3.0L - 2979
Bosch
2003 BMW X5 Oxygen Sensor - Upstream 8 Cyl 4.6L Bosch - Actual OE Oxygen Sensor

P311-42B9C92    13477  New

Qty:
$64.45
Bosch Oxygen Sensor  Upstream
  • Bosch Oxygen Sensor
  • Actual OE Oxygen Sensor
  • Product Attributes:
    • Automotive Item Weight (lbs): 0.242508 Lb
    • Connector Gender: Female
    • Connector Shape: Female Pin
    • Hex Size (Oxygen Sensor): 22 Mm
    • Length (Sealing Surface To End Of Connector): 11.417329 In
    • Mounting Type: Threaded
    • Oxygen Sensor Type: Narrow-band Heated
    • Sensor Type: Heated
  • Bosch leads the way in oxygen sensor technology and innovation. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.
  • Suggested Purchase Quantity: 2
    • Most jobs typically require 2 of this item.
Brand: Bosch
Position: Upstream
Additional Fitment Information:
Vehicle Position Block Engine CID CC
2003 - BMW X5 Upstream V 8 Cyl 4.6L - 4598
Bosch
2006 BMW X3 Oxygen Sensor - Upstream 6 Cyl 3.0L Bosch - Actual OE Oxygen Sensor

P311-42B9C92    13477  New

Qty:
$64.45
Bosch Oxygen Sensor  Upstream
  • Bosch Oxygen Sensor
  • For cylinders 1-3
  • Actual OE Oxygen Sensor
  • Product Attributes:
    • Automotive Item Weight (lbs): 0.242508 Lb
    • Connector Gender: Female
    • Connector Shape: Female Pin
    • Hex Size (Oxygen Sensor): 22 Mm
    • Length (Sealing Surface To End Of Connector): 11.417329 In
    • Mounting Type: Threaded
    • Oxygen Sensor Type: Narrow-band Heated
    • Sensor Type: Heated
  • Bosch leads the way in oxygen sensor technology and innovation. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.
  • Suggested Purchase Quantity: 2
    • Most jobs typically require 2 of this item.
Brand: Bosch
Position: Upstream
Additional Fitment Information:
Vehicle Transmission Position Block Engine CID CC
2006 - BMW X3 Manual Upstream L 6 Cyl 3.0L - 2979
Denso
2005 BMW 320i Oxygen Sensor - Upstream 6 Cyl 2.2L Denso - OE Style

P311-413C398    234-4672  New

SG1096 , 213-1474 , 11781742050 , 13559 , 75-1973 , 75-3278 , 13477 , SG1517 , 75-2356 , MHK000210 , ES10899 , OS1006 , 11781247406 , OS1061 , 25569 , OS2350 , 15668 , 11787513962 , SG1705 , SG1108

Qty:
$57.17
Denso Oxygen Sensor  Upstream
  • Oxygen Sensor 4 Wire, Direct Fit, Heated, Wire Length: 13.39
  • OE Style
  • Product Attributes:
    • Connector Gender: Female
    • Mounting Type: Threaded
    • Sensor Type: Heated
    • Thread Diameter: 0.708
    • Wiring Harness Length: 13.39
  • DENSO Oxygen Sensors are manufactured and tested to the strictest OE standards for unparalleled peformance; Each component is precision built for exact replacement, and a first time fit; This innovative line features DENSO's exclusive aluminum oxide trap layer, designed to protect the ceramic element from silicone and lead posining for improved engine performance, greater fuel efficiency, and unparalleled longevity; DENSO gives you the right part and the right fit, the first time.
Brand: Denso
Position: Upstream
Additional Fitment Information:
Vehicle Position Block Engine CID CC
2005 - BMW 320i Upstream L 6 Cyl 2.2L 132 2171
Denso
1999 BMW 318is Oxygen Sensor - Upstream 4 Cyl 1.9L Denso - OE Style

P311-413C398    234-4672  New

SG1096 , 213-1474 , 11781742050 , 13559 , 75-1973 , 75-3278 , 13477 , SG1517 , 75-2356 , MHK000210 , ES10899 , OS1006 , 11781247406 , OS1061 , 25569 , OS2350 , 15668 , 11787513962 , SG1705 , SG1108

Qty:
$57.17
Denso Oxygen Sensor  Upstream
  • Oxygen Sensor 4 Wire, Direct Fit, Heated, Wire Length: 13.39
  • OE Style
  • Product Attributes:
    • Connector Gender: Female
    • Mounting Type: Threaded
    • Sensor Type: Heated
    • Thread Diameter: 0.708
    • Wiring Harness Length: 13.39
  • DENSO Oxygen Sensors are manufactured and tested to the strictest OE standards for unparalleled peformance; Each component is precision built for exact replacement, and a first time fit; This innovative line features DENSO's exclusive aluminum oxide trap layer, designed to protect the ceramic element from silicone and lead posining for improved engine performance, greater fuel efficiency, and unparalleled longevity; DENSO gives you the right part and the right fit, the first time.
Brand: Denso
Position: Upstream
Additional Fitment Information:
Vehicle Position Block Engine CID CC
1999 - BMW 318is Upstream L 4 Cyl 1.9L - 1895
Denso
1999 BMW 323i Oxygen Sensor - Upstream 6 Cyl 2.5L Denso - OE Style

P311-413C398    234-4672  New

SG1096 , 213-1474 , 11781742050 , 13559 , 75-1973 , 75-3278 , 13477 , SG1517 , 75-2356 , MHK000210 , ES10899 , OS1006 , 11781247406 , OS1061 , 25569 , OS2350 , 15668 , 11787513962 , SG1705 , SG1108

Qty:
$57.17
Denso Oxygen Sensor  Upstream
  • Oxygen Sensor 4 Wire, Direct Fit, Heated, Wire Length: 13.39
  • Convertible
  • OE Style
  • Product Attributes:
    • Connector Gender: Female
    • Mounting Type: Threaded
    • Sensor Type: Heated
    • Thread Diameter: 0.708
    • Wiring Harness Length: 13.39
  • DENSO Oxygen Sensors are manufactured and tested to the strictest OE standards for unparalleled peformance; Each component is precision built for exact replacement, and a first time fit; This innovative line features DENSO's exclusive aluminum oxide trap layer, designed to protect the ceramic element from silicone and lead posining for improved engine performance, greater fuel efficiency, and unparalleled longevity; DENSO gives you the right part and the right fit, the first time.
Brand: Denso
Position: Upstream
Additional Fitment Information:
Vehicle Body Position Block Engine CID CC
1999 - BMW 323i Convertible Upstream L 6 Cyl 2.5L 152 2494
Denso
2003 BMW 325i Oxygen Sensor - Upstream 6 Cyl 2.5L Denso - OE Style

P311-413C398    234-4672  New

SG1096 , 213-1474 , 11781742050 , 13559 , 75-1973 , 75-3278 , 13477 , SG1517 , 75-2356 , MHK000210 , ES10899 , OS1006 , 11781247406 , OS1061 , 25569 , OS2350 , 15668 , 11787513962 , SG1705 , SG1108

Qty:
$57.17
Denso Oxygen Sensor  Upstream
  • Oxygen Sensor 4 Wire, Direct Fit, Heated, Wire Length: 13.39
  • M54 Engine; To 3/03
  • OE Style
  • Product Attributes:
    • Connector Gender: Female
    • Mounting Type: Threaded
    • Sensor Type: Heated
    • Thread Diameter: 0.708
    • Wiring Harness Length: 13.39
  • DENSO Oxygen Sensors are manufactured and tested to the strictest OE standards for unparalleled peformance; Each component is precision built for exact replacement, and a first time fit; This innovative line features DENSO's exclusive aluminum oxide trap layer, designed to protect the ceramic element from silicone and lead posining for improved engine performance, greater fuel efficiency, and unparalleled longevity; DENSO gives you the right part and the right fit, the first time.
Brand: Denso
Position: Upstream
Additional Fitment Information:
Vehicle Engine Designation Position Block Engine CID CC
2003 - BMW 325i M54 Upstream L 6 Cyl 2.5L 152 2494
Denso
2000 BMW 328i Oxygen Sensor - Upstream 6 Cyl 2.8L Denso - OE Style

P311-413C398    234-4672  New

SG1096 , 213-1474 , 11781742050 , 13559 , 75-1973 , 75-3278 , 13477 , SG1517 , 75-2356 , MHK000210 , ES10899 , OS1006 , 11781247406 , OS1061 , 25569 , OS2350 , 15668 , 11787513962 , SG1705 , SG1108

Qty:
$57.17
Denso Oxygen Sensor  Upstream
  • Oxygen Sensor 4 Wire, Direct Fit, Heated, Wire Length: 13.39
  • Sedan
  • OE Style
  • Product Attributes:
    • Connector Gender: Female
    • Mounting Type: Threaded
    • Sensor Type: Heated
    • Thread Diameter: 0.708
    • Wiring Harness Length: 13.39
  • DENSO Oxygen Sensors are manufactured and tested to the strictest OE standards for unparalleled peformance; Each component is precision built for exact replacement, and a first time fit; This innovative line features DENSO's exclusive aluminum oxide trap layer, designed to protect the ceramic element from silicone and lead posining for improved engine performance, greater fuel efficiency, and unparalleled longevity; DENSO gives you the right part and the right fit, the first time.
Brand: Denso
Position: Upstream
Additional Fitment Information:
Vehicle Body Position Block Engine CID CC
2000 - BMW 328i Sedan Upstream L 6 Cyl 2.8L - 2793
Denso
2003 BMW 330i Oxygen Sensor - Upstream 6 Cyl 3.0L Denso - OE Style

P311-413C398    234-4672  New

SG1096 , 213-1474 , 11781742050 , 13559 , 75-1973 , 75-3278 , 13477 , SG1517 , 75-2356 , MHK000210 , ES10899 , OS1006 , 11781247406 , OS1061 , 25569 , OS2350 , 15668 , 11787513962 , SG1705 , SG1108

Qty:
$57.17
Denso Oxygen Sensor  Upstream
  • Oxygen Sensor 4 Wire, Direct Fit, Heated, Wire Length: 13.39
  • To 03/03
  • OE Style
  • Product Attributes:
    • Connector Gender: Female
    • Mounting Type: Threaded
    • Sensor Type: Heated
    • Thread Diameter: 0.708
    • Wiring Harness Length: 13.39
  • DENSO Oxygen Sensors are manufactured and tested to the strictest OE standards for unparalleled peformance; Each component is precision built for exact replacement, and a first time fit; This innovative line features DENSO's exclusive aluminum oxide trap layer, designed to protect the ceramic element from silicone and lead posining for improved engine performance, greater fuel efficiency, and unparalleled longevity; DENSO gives you the right part and the right fit, the first time.
Brand: Denso
Position: Upstream
Additional Fitment Information:
Vehicle Position Block Engine CID CC
2003 - BMW 330i Upstream L 6 Cyl 3.0L - 2979
Denso
1998 BMW 750iL Oxygen Sensor - Upstream 12 Cyl 5.4L Denso - OE Style

P311-413C398    234-4672  New

SG1096 , 213-1474 , 11781742050 , 13559 , 75-1973 , 75-3278 , 13477 , SG1517 , 75-2356 , MHK000210 , ES10899 , OS1006 , 11781247406 , OS1061 , 25569 , OS2350 , 15668 , 11787513962 , SG1705 , SG1108

Qty:
$57.17
Denso Oxygen Sensor  Upstream
  • Oxygen Sensor 4 Wire, Direct Fit, Heated, Wire Length: 13.39
  • M73N Engine
  • OE Style
  • Product Attributes:
    • Connector Gender: Female
    • Mounting Type: Threaded
    • Sensor Type: Heated
    • Thread Diameter: 0.708
    • Wiring Harness Length: 13.39
  • DENSO Oxygen Sensors are manufactured and tested to the strictest OE standards for unparalleled peformance; Each component is precision built for exact replacement, and a first time fit; This innovative line features DENSO's exclusive aluminum oxide trap layer, designed to protect the ceramic element from silicone and lead posining for improved engine performance, greater fuel efficiency, and unparalleled longevity; DENSO gives you the right part and the right fit, the first time.
Brand: Denso
Position: Upstream
Additional Fitment Information:
Vehicle Engine Designation Position Block Engine CID CC
1998 - BMW 750iL M73N Upstream V 12 Cyl 5.4L - 5379
Denso
1998 BMW 750iL Oxygen Sensor - Upstream 12 Cyl 5.4L Denso - OE Style

P311-413C398    234-4672  New

SG1096 , 213-1474 , 11781742050 , 13559 , 75-1973 , 75-3278 , 13477 , SG1517 , 75-2356 , MHK000210 , ES10899 , OS1006 , 11781247406 , OS1061 , 25569 , OS2350 , 15668 , 11787513962 , SG1705 , SG1108

Qty:
$57.17
Denso Oxygen Sensor  Upstream
  • Oxygen Sensor 4 Wire, Direct Fit, Heated, Wire Length: 13.39
  • M73 Engine
  • OE Style
  • Product Attributes:
    • Connector Gender: Female
    • Mounting Type: Threaded
    • Sensor Type: Heated
    • Thread Diameter: 0.708
    • Wiring Harness Length: 13.39
  • DENSO Oxygen Sensors are manufactured and tested to the strictest OE standards for unparalleled peformance; Each component is precision built for exact replacement, and a first time fit; This innovative line features DENSO's exclusive aluminum oxide trap layer, designed to protect the ceramic element from silicone and lead posining for improved engine performance, greater fuel efficiency, and unparalleled longevity; DENSO gives you the right part and the right fit, the first time.
Brand: Denso
Position: Upstream
Additional Fitment Information:
Vehicle Engine Designation Position Block Engine CID CC
1998 - BMW 750iL M73 Upstream V 12 Cyl 5.4L - 5379
Denso
1998 BMW Z3 Oxygen Sensor - Upstream 6 Cyl 2.8L Denso - OE Style

P311-413C398    234-4672  New

SG1096 , 213-1474 , 11781742050 , 13559 , 75-1973 , 75-3278 , 13477 , SG1517 , 75-2356 , MHK000210 , ES10899 , OS1006 , 11781247406 , OS1061 , 25569 , OS2350 , 15668 , 11787513962 , SG1705 , SG1108

Qty:
$57.17
Denso Oxygen Sensor  Upstream
  • Oxygen Sensor 4 Wire, Direct Fit, Heated, Wire Length: 13.39
  • From 09/98
  • OE Style
  • Product Attributes:
    • Connector Gender: Female
    • Mounting Type: Threaded
    • Sensor Type: Heated
    • Thread Diameter: 0.708
    • Wiring Harness Length: 13.39
  • DENSO Oxygen Sensors are manufactured and tested to the strictest OE standards for unparalleled peformance; Each component is precision built for exact replacement, and a first time fit; This innovative line features DENSO's exclusive aluminum oxide trap layer, designed to protect the ceramic element from silicone and lead posining for improved engine performance, greater fuel efficiency, and unparalleled longevity; DENSO gives you the right part and the right fit, the first time.
Brand: Denso
Position: Upstream
Additional Fitment Information:
Vehicle Position Block Engine CID CC
1998 - BMW Z3 Upstream L 6 Cyl 2.8L - 2793
Denso
2006 BMW X3 Oxygen Sensor - Upstream 6 Cyl 3.0L Denso - OE Style

P311-413C398    234-4672  New

SG1096 , 213-1474 , 11781742050 , 13559 , 75-1973 , 75-3278 , 13477 , SG1517 , 75-2356 , MHK000210 , ES10899 , OS1006 , 11781247406 , OS1061 , 25569 , OS2350 , 15668 , 11787513962 , SG1705 , SG1108

Qty:
$57.17
Denso Oxygen Sensor  Upstream
  • Oxygen Sensor 4 Wire, Direct Fit, Heated, Wire Length: 13.39
  • Manual Transmission
  • OE Style
  • Product Attributes:
    • Connector Gender: Female
    • Mounting Type: Threaded
    • Sensor Type: Heated
    • Thread Diameter: 0.708
    • Wiring Harness Length: 13.39
  • DENSO Oxygen Sensors are manufactured and tested to the strictest OE standards for unparalleled peformance; Each component is precision built for exact replacement, and a first time fit; This innovative line features DENSO's exclusive aluminum oxide trap layer, designed to protect the ceramic element from silicone and lead posining for improved engine performance, greater fuel efficiency, and unparalleled longevity; DENSO gives you the right part and the right fit, the first time.
Brand: Denso
Position: Upstream
Additional Fitment Information:
Vehicle Transmission Position Block Engine CID CC
2006 - BMW X3 Manual Upstream L 6 Cyl 3.0L - 2979
Bosch
2006 BMW 323i Oxygen Sensor Bosch

P311-02C3240    W0133-1778390  New

Qty:
$169.24
Bosch Oxygen Sensor
  • OE Connector
  • Production: 11/01/2005-, Before Catalyst : Cylinders 4-6 : Regulating Lambda Probe : 910mm
Brand: Bosch
Additional Fitment Information:
Vehicle Prod. Date Range
2006 - BMW 323i Fr:11-01-05
Bosch
2006 BMW 530xi Oxygen Sensor Bosch

P311-02C3240    W0133-1778390  New

Qty:
$169.24
Bosch Oxygen Sensor
  • OE Connector
  • Production: 11/2005-, Before Catalyst : Cylinders 4-6 : Regulating Lambda Probe : 910mm
Brand: Bosch
Additional Fitment Information:
Vehicle Prod. Date Range
2006 - BMW 530xi Fr:11-00-05
Bosch
2009 BMW Z4 Oxygen Sensor Bosch

P311-02C3240    W0133-1778390  New

Qty:
$169.24
Bosch Oxygen Sensor
  • OE Connector
  • Before Catalyst : Cylinders 4-6 : Regulating Lambda Probe : 910mm
Brand: Bosch
Additional Fitment Information:
Vehicle Aspiration
2009 - BMW Z4 Naturally Aspirated
Bosch
2013 BMW 328i xDrive Oxygen Sensor 6 Cyl 3.0L Bosch

P311-02C3240    W0133-1778390  New

Qty:
$169.24
Bosch Oxygen Sensor
  • OE Connector
  • Location-Rear Manifold
Brand: Bosch
Additional Fitment Information:
Vehicle Block Engine CID CC
2013 - BMW 328i xDrive L 6 Cyl 3.0L - 2996
Bosch
2012 BMW 328i Oxygen Sensor Bosch

P311-02C3240    W0133-1778390  New

Qty:
$169.24
Bosch Oxygen Sensor
  • OE Connector
  • Before Catalyst : Cylinders 4-6
Brand: Bosch
Additional Fitment Information:
Vehicle Aspiration
2012 - BMW 328i Naturally Aspirated

Latest Bmw Repair and O2 Sensor Installation Advice

CarJunky AutoAdvice

Multiple maintenance issues of the same type - Mechanic goes out of business. Help!

Showing 6 out of 6 Posts
Question From tek0011 on Multiple maintenance issues of the same type - Mechanic goes out of business. Help!

I purchased a 2001 530i with 65,008 miles on it, clean title, 1 owner, good history.
Since then I have put over $4,000 of maintenance into the vehicle and some issues have been fixed multiple times. Those same issues are arising again and I am wondering if there is anything I can do as a consumer?
The mechanic that has done all the work is now out of business and I can't even seem to get the warranty's to have another mechanic do the repairs (that is if warranties are even transferable to other shops?)

9/3/10 - 65,008 miles - Vehicle Purchase (1,000 mile 30 day warranty)

9/20/10 - 66,145 miles (past the 1,000 mile warranty): Check Engine light comes on - Scan reveals the following codes: Fuel Trim codes-228, 203, 227, 202. Miss fire codes-242, 243, 241, 240. O2 Sensor code-189.
Smoke tested and major leaks are found.

10/15/2010 - 67,382 miles - Car idles around 200rpm, shakes while accelerating, major lack of power:
Smoke test is performed. Intake Manifold Runner Valve replaced

10/18/2010 - 67,432 miles - Same problem. car idles around 200rpm, shakes while accelerating, major lack of power:
Crankcase vent valve replaced, vacuum hoses replaced, car now starts leaking oil from back passenger side of valve cover. Valve gasket replaced. Smoke test passes.

10/21/2010 - 67,460 miles - Same problem. Car idles around 200rpm, shakes while accelerating, major lack of power, oil leaking from valve cover:
Valve gasket replaced again. Fuel injector #3 replaced. Power and idle issues stop.

12/9/2010 - 69,461 miles - Temperature sky rockets. Code 168 for Thermostat, 189 for insufficient heat output and 222 for o2 sensor not active, oil still leaking from back passenger side of valve cover:
Thermostat replaced, Engine cleaned.

12/15/2010 - 69,557 miles - Major Oil leak from back passenger side of valve cover:
Gasket replaced along with Cylinder Head Cover.

1/7/2011 - 70,450 miles - No more oil leak. Now Vanos oil line is leaking as is power steering fluid.

2/15/2011 - 72,106 miles - No oil leaks, belts start to squeal showing signs of coolant leak from thermostat or water pump. Codes for lean fuel and o2 sensor:
All belts replaced, thermostat replaced again, oil cap replaced, air filters, o2 sensor, synthetic oil change, oil filter all replaced.

3/4/2011 - 72,806 miles - Coolant leak again.
Water pump replaced.

8/4/2011 - 80,282 miles - Coolant leak again.
Water pump and thermostat replaced again.

8/20/2011 - 80,921 miles - Coolant leak again.
Coming from same place. Call mechanic. Mechanic is out of business.

It is now November and I still have a coolant leak coming from water pump, which requires about 2-3 cups of coolant each morning. This is the 3rd time I am having the same issue. Not to mention the belts squeal non stop now, due to having so much coolant leaked on to them.

Can someone please help me with what my options are at this point? This is the 1st used car I have purchased and the first BMW I have owned.
This is close the the worst issue I have ever dealt with in my life.

Total cost to date: $4,084.98 in maintenance.

What can I do? Contact a lawyer? Contact BMW to have another mechanic replace the parts under warranty? Sue the owner of the shop that went out of business? Contact BMW directly and tell them about this?
I am so lost right now, I just wish the car would go away.

Any help at all, is much much appreciated no matter how small the consideration.
Thank you so much.

TL;DR - I have spent over $4,000 in maintenance on my vehicle and the same problem keeps happening. What can I do?

Response From samg.

You wonder why he's out of business? haha

I doubt this was a dealer, I really doubt a bmw dealer would make you go through this much stuff. I bet it was a ind. shop. It sounds to me like maybe he went a bit crazy on the engine when he replaced the water pump with a grinder, seen it too many times. Or, though i'm not familiar with bmw engines specificly, I'd wonder if you don't have a water jacket leak. Are the water pumps on those acces belt drivin or timing belt drivin?

Response From Tom Greenleaf

Tons of bad luck. Was this a BMW dealership now out of biz? Read the warranty fine print but think you are screwed. Seems like this car had a serious overheat even before you got it and cracked pars.

Multiple replacements of same parts is nuts. There has to be a common denominator if legit and something missed OR tech wasn't wasting any time checking out why.

If whole shop is out of biz they probably owe everyone in the area too for something too - tons more than 4 grand but I can only guess.

Contact BMW and see what they say,

T

Response From Sidom Top Rated Answer

If this was a dealer, then the BMW might do something, it would be a long shot since they are independently owned...

I guess I misread the original post, I was under the impression this was an independent shop.....

Response From Hammer Time

You might want to contact the BMW zone office if this was a BMW dealer. They may have some leverage on the old dealer.

Response From Sidom

With the shop being out of business, there really isn't much you can do. All the warranties would be with that shop. Shops don't warranty other shops work.

I'm not a legal expert but even if there was some open avenue to purse on an out of business shop, if there is no money left, then getting a judgment would be a "hollow" victory and in the process you would've more than likely racked up way more in legal fees than what you are going after....

I don't have both sides so all I can go off of is what you posted.

In the future, it would be best to find a shop that is trained & tooled to work on your make. Some shops say they "work on everything" when in fact with some makes they are way in over their head.

Find a shop that is qualified to do Euro (they aren't going to be the cheapest). Talk to friends & co workers, see who they use & like. You can go to ase.com or iatn.net, they have shop locators you can look at. Any shop affiliated with these sites is at least attempting to better themselves & keep up with the times. You can check out the better business bureau.

Once you find someone you trust & does good work, stick with them. Keeping in mind that everyone has problems from time to time. Also sometimes other things will fail that has nothing to do with previous work.... A problem or 2 is no reason to fire a good shop BUT if it's a case of incompetence, then yes finding another shop would be in order...

Like I said I can only go off what you posted & don't have the whole story BUT my gut tells me, they were guessing on the driveability problem and have missed the real root of the coolant leak.....Just a guess.....

Good luck, hope this works out for you. Try not to dwell too much on this bad experience or throwing good money after bad. Chalk it up to a lesson learned, keeping mind that not everyone out there is a bad guy.

Please read my plugs

Showing 2 out of 7 Posts | Show 5 Hidden Posts
Question From andysmith on Please read my plugs

Hello all.
This is related to my motorcycle, but I guess an engine is an engine at the end of the day.
My BMW K1100RS just had to have a replacment engine, due to cylinder 2 going into meltdown and destroying the exhaust valves.
This is turn damaged the bore, which meant end of that engine.
I got another one bolted up, and my mechanic told me that when he unbolted the exhaust down pipes, the one from cylinder two just dropped out onto the floor.
This is likely to be the cause of the catastrophe.
Anyway, after a couple of hundred miles on the replacement engine, I decided to have a look at the plugs, and am posting photo's here in the hope that an expert or two might be able to offer up an opinion as to how my engine is running.
Thanks for any help.





Response From Tom Greenleaf

If you are just asking for an opinion on how plugs look
they look normal to me suggesting this engine is running
properly. If so put them back and forget it for now,


T

Response From Discretesignals

How does it run?

From what I've read this bike is fuel injected, so plugs might look a little leaner than something with a carb that is running normal. Not sure if this bike uses an O2 sensor for feedback fuel control. If it does, the computer may have diagnosic capabilities like a modern car. You could check for codes and look at O2 data if that is possible.

Response From andysmith Top Rated Answer


How does it run?

From what I've read this bike is fuel injected, so plugs might look a little leaner than something with a carb that is running normal. Not sure if this bike uses an O2 sensor for feedback fuel control. If it does, the computer may have diagnosic capabilities like a modern car. You could check for codes and look at O2 data if that is possible.

The bike is running great.
No issues at all.
Smooth progressive drive with no hiccups, popping or hesitation.
I don't know about the tech stuff you asked about, but I'll have a word with the BMW dealer about it.
I do know that my bike is one of the first mass produced injected motorcycles.
Thank all for your input/

Response From Discretesignals

If it does have diagnostic capabilites and you can look at engine data, that would tell you a lot about how the fuel system is doing. Let us know what your BMW tech thinks.

Response From Tom Greenleaf

IDK - It runs fine and only 200ish miles since done this still looks good to me and think that's what you'll hear if you bring it back.


The "reading plug thing" is real info but it really isn't enough miles without a complaint IMO to mess with it for what I see.


If ONE of them was different from the others then I'd be concerned or check again in a bunch more miles,


T

Response From Hammer Time

Looks like it's burning a little lean to me.

NJ Motor Vehicle inspection follow up....

Showing 3 out of 12 Posts | Show 9 Hidden Posts
Question From carminejg3 on NJ Motor Vehicle inspection follow up....

Well I replaced the brake light, and had the window clip fixed as well as the front struts replaced. ($700 for both struts, some sleeve and a little weight looking thing that protects the strut from a sudden upward motion)

But as we may have guessed I still failed the emissions test results:
My emissions test results below:

Gas Standard Reading
NOx 970 1624 Failed
HC 128 148 Failed
CO% .71 .49 Pass
CO2% 14.4
O2% 0.4


Before I failed with a NOx reading of 1970 and a HC reading of 179

I changed the spark plugs, and air filter as well as went back to running 93 octane gas (like I'm suppose to be) see note at bottom.

So What do you guys think I should change next? The Oxygen Sensor (o2).... I changed this the last time and the car did pass...
I'm wondering if changing the gas octane could ruin an o2 sensor, or could my car be doing something that is burning out the oxygen sensor?

Any suggestions would be great!!




Gasoline NOTE: Run what the car Manufactors suggest.... It goes WAY beyond the price... 87 octane burns a lot faster, then 93 Octane and your car is designed to fire at a certain point, so the other octane will make it fire early or late....

Funny to note by changing back to 93 octane gasoline..... I gained another 30 mphs....

Response From TekDiva


I joined the site to make this post! LOL. Looks like a great forum though...

Do you know that, in NJ, if you have spent $450 trying to repair the failed emissions you can ask for a special waiver? You need to bring the original invoices and they must be from a liscensed EMF. It's good for 2 years and can be re-issued if applicable.

Hope that helps...

TekDiva

Response From carminejg3

Thanks a lot.

I think this site makes you register to help keep it clean, besides it was fairly simply to register right.

I actually just bought another o2 sensor since I had High NOx and HC.

That back fired on me.

The NOx and HC went up from.

Gas Standard Reading
NOx 970 1624 Failed
HC 128 148 Failed

to:
Gas Standard Reading
NOx 970 2150 Failed
128 250 Failed

Now I'm thinking is it my catalytic converter again (2 years old) or is my car just a piece of crap lol.

Response From Tom Greenleaf

I wish I knew more about the emmisions systems. The octane of fuel shouldn't matter if the car was designed for 87 octane. Have one of my own that fails by the slightest amount of Nox, and I put in a new EGR and things that should help and it tested worse by a smidge. It's a 1989 Town Car and this state still want's it to blow fresh air and it wasn't even designed for that so I'm ticked. That car now has 209,000 miles and is rusting badly so it's now on its last sticker.

Your converter should last longer than two years but if it's been taxed too much it could have given up.

If this car runs well it should be just some stupid problem like intake vacuum or any vacuum leaks. Take it out safely for a good beating -- meaning foot to the floor several times especially if the normal driving is just poking around as mine are.

Your #s are pretty high so there is something wrong and it is costing you fuel economy too.

I've heard isopropyl dry gas can help some but probably not as much as you need.

You can test for vacuum leaks with brakecleaner or carb/throttle body cleaner but some if flammable and on a hot engine a bit dangerous so if you try that have a real ABC fire extinguisher handy as some of these can flash with a hot engine. Engine idle should not change when using this trick on a vacuum suspect leak. Use sparingly if you try that, T

Response From carminejg3

Latest I changed the O2 Sensor, and my results shot up to

NOx 2254 (need 970)
HC 250 (need 128)

Do I need a new catalytic converter? Or what does an ERG system control and how could you check it out in a 92 325i bmw

Response From Tom Greenleaf

The EGR (Exhaust Gas Recirculation) is there to put a bit of already burned gas back into the intake but only at part throttle. It should be off at idle and off at full throttle. For some reason the tidbit it puts into fresh fuel and air lowers the combustion temp which lowers NOx. A colder engine will have less NOx but have higher HC.

The EGR was never meant to just reburn any unburned fuel as first thought by many.

A new Cat Converter would help but I'm not sure that would be enough.

Do you have a vacuum gauge? If not get one that makes vaccuum with a gauge and a peice of howe and a "T" that fits the hose for some testing.

Manifold vacuum should be about 18Hg at idle and the same without load at about 2,000 or it's indicating an exhaust restiction!

Also -- Is ignition timing correct? That could throw things off too, Just the thoughts du jour, T

Response From carminejg3

Hey Tom,

I recently noticed that once in a while my car is now giving a little backfire, not the loud boom, but you can hear a backfire after stepping on the gas and then coasting with the car still in gear

Response From Tom Greenleaf

What kind of car is this and how many miles? If it uses a timing belt and it's overdue it may have jumped a tooth, T

Response From carminejg3 Top Rated Answer

tom its a 92 bmw 325i... with 215,000 miles.

Response From Tom Greenleaf

?? I guess check the timing and see if it jumps around too much but doubt that for a Beamer and that could mean a worn distributor, T

Response From TekDiva


I really feel for ya ....

I'm just starting down this road right now- trying to save my beloved beater 87 manual trans bronco. I think it will be quite a "trip" ...

Personally, I'm really relieved to know that I'm not "into" the emissions for more than $450. I don't care what the critics say, I just really love this car and really want to save it. Call me a silly mach-a dork!

lol

TekDiva

Response From carminejg3

Yeah I know the feeling.... I already spent 700 on struts, so I'm going to try and replace the catalytic. And see what happens from there.

Or I'll do what everyone else seems to be doing in NJ, registering my car in a different state for cheap insurance and less straight motor vehicle test.

Please help identify cause of rough idle?

Showing 3 out of 4 Posts | Show 1 Hidden Posts
Question From silvermist366 on Please help identify cause of rough idle?

Year of vehicle- 2001
Make of vehicle- BMW
Model of vehicle- E46 325ci
Engine size- 2.5

Hi I'm new to this forum. I've tried quite a few web sites for help and visited nearly all the local garages around my area. The nearest BMW dealership is 133 miles away hopefully someone on here can help narrow down what could be the fault anyway here goes. When the engine is cold, it starts fine and the rpm goes to 1k and stays there for about 30secs or so before starting to drop to normal idle speed and that's when the problem starts. As soon as the rpms starts to drop, the car shakes and rumbles pretty violently and if I leave things as they are then the check engine light comes on but if I hold the throttle to keep the rpms above 1k and wait for the engine to warm up then let go, the rpms drop smoothly and there's no check engine light but I've noticed an increase in fuel consumption. So when the engine is cold I MUST hold the throttle above 1k to warm up or else the rpms will drop and cause engine misfire and check engine light comes on but after the engine is warmed up then everything works as normal which makes it extremely hard to identify the problem but the fuel consumption is really biting me because usually 1/4 of fuel lasts up to 109 miles but now its about 47 to 50 miles per quarter.So as suggested by the mechanics I've visited, the O2 sensors and ignition coils have been changed because when the code comes on, it says cylinder 4 misfire with fuel cut off according to the scanner. Then it was suggested that full service should be carried out ie change of all sorts of filters and oil etc so that was also done but problem didn't solve. Then it was suggested that throttle body and icv valve needs to be cleaned, so I asked that to be done too and that improved things a little. Its not as rough as before when cold and fuel consumption has improved a little but the misfire when cold and increased fuel consumption still persists. So what else could be faulty? Its starting to seem like something I have to live with and I'm pretty sure the car could fail emission tests. Any suggestions on what else could be causing this issue?

Response From Hammer Time

What is the code number being set when the check engine light comes on?

Response From silvermist366 Top Rated Answer

the code was P1349 but the check engine light doesn't stay on all the time. If it comes on then it will disappear once the engine has warmed up. Tricky huh.

Response From Hammer Time

That's misfire cylinder 4 with fuel cutoff. You're going to have to get to the bottom of why that cylinder is misfiring.