I have recently bought a 1 litre Toyota Aygo 2006 74000 miles on the clock, when I bought the car 2 months ago I noticed a ticking sound coming from the bonnet, when I mentioned this on the test drive the dealer replied that its normal on a 1 litre engine.
I have recently had 2 passengers who also noticed this sound, they both mentioned this sound was not right (they have both been in Aygos previously).
The ticking only happens upon accelerating,it does not happen upon startup or in neutral,the harder the accelerator pedal is pressed the faster/louder it clicks.
I have re-filled with the correct engine oil,with no affect.
I have checked the oil engine cap and there is a tiny white mark in the depth of the cap (but not on the rim)
It would be great if someone has ideas as to what is causing the noise?
Many thanks