Possible causes
– Dirty Oil
– Engine mechanical problems
– Faulty camshaft position sensor
– Faulty crankshaft position sensor
– Timing belt jumped
– Engine mechanical problems
– Faulty camshaft position sensor
– Faulty crankshaft position sensor
– Timing belt jumped
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
AUDI Technical Service Bulletins for P0018 code
2009 AUDI A4 ELECTRICAL SYSTEM:STARTER ASSEMBLY:SOLENOID
2009 AUDI A5 ELECTRICAL SYSTEM:STARTER ASSEMBLY:SOLENOID
2009 AUDI Q5 ELECTRICAL SYSTEM:STARTER ASSEMBLY:SOLENOID