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Submitted by Jed Rees on October 10, 2020
Question

Have a 2007 Mercedes S550 4matic. 190k kms. Engine light on, got the P0016 code. The cars runs smooth. Was wondering how likely it might be the timing chain gear issue  everyone dreads? Engine serial number checks or to be okay.

Odometer
190000

Answers

It might not be the timing chain gear.  If the car runs smooth but is throwing codes, it might be the crank or cam position sensor.