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Steve
Steve, BMW Expert
Category: BMW
Satisfied Customers: 24117
Experience:  BMW Expert
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. have had engine probs with 2003 3 series e46 2.0l petrol

Customer Question

. have had engine probs with 2003 3 series e46 2.0l petrol time. bad engine ticking (vanos?)poor starting. I assume if the ticking & performance are that bad then replacing vanos seals is no use? have done engine flush, still gunk on camshaft sensor which I have also changed.
Submitted: 2 years ago.
Category: BMW
Expert:  Steve replied 2 years ago.

what faults are being set in the car's fault memory?

Customer: replied 2 years ago.

p0366 - camshaft position sensor B circuit range/performance bank1 & p0015 - B camshaft position timing over-retarded bank1

no EML comes on other than on start-up.

camshaft sensor has been replaced & has been covered in thick oil gunk even after engine flush & oil & filter change

Expert:  Steve replied 2 years ago.
I will provide an honest answer. I trust this will be appreciated. Please remember that a low rating PUNISHES me honest and that I receive nothing time and the materials I have provided until a positive rating is clicked.
if you have sludge build up, you should definitely have that addresses ASAP.
if the cam sensor is covered in gunk, I would replace it again then reassess once the sludge is cleared and a new sensor is fitted.
Please let me know if you have further questions. Please do not forget to click a positive rating as this is the only way I receive credit answer, thank you. Best wishes with your vehicle.
Customer: replied 2 years ago.

sensor has been replaced twice at over £100 at a time, engine flush has been done also which should in theory remove any sludge?

Expert:  Steve replied 2 years ago.

Please do not forget to click a positive rating as this is the only way I receive credit answer, thank you

in theory it would, but if the sensor still has gunk on it, then there is clearly still an issue

Please do not forget to click a positive rating as this is the only way I receive credit answer, thank you