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P0019 Fault Code on 2012 Mercedes-Benz E350 BlueTEC: Diagnosis and Solutions

Model: 2012 Mercedes Benz E350 Fault Code: P0019 Posted: 2016-12-24 22:31

I'm experiencing a persistent OBD-II fault code P0019 on my 2012 Mercedes-Benz E350 BlueTEC. Despite replacing the crankshaft sensor and all four camshaft sensors, the code continues to appear. Notably, after clearing the code while the engine is running, the car starts smoothly and the issue does not reappear during operation. However, every time I turn off the vehicle and restart it, the engine struggles with a hard start and the P0019 code returns immediately. I've performed two engine purges and replaced all four solenoids with factory-original parts. At this point, I'm out of conventional repair options and seeking expert advice on potential root causes or diagnostic steps to resolve this recurring issue.

Related fault codes

P0019

Comments (3)

Anonymous 2017-06-07 13:52

I've encountered a similar P0019 issue on my 2007 Mercedes ML350. The code appears intermittently and disappears after several starts. I changed the oil and added Castrol Magnatech, which seemed to extend the intervals between fault occurrences. Recently, a thermostat temperature control fault also appeared—no specific code available as I became frustrated with multiple issues. Any insights or recommendations would be greatly appreciated. Thank you for your time and support.

Anonymous 2019-03-10 10:21

I have a P0019 code on my Mercedes R230 3.5L SL model, and it's been recurring for the second time in repairs. The OBD-II reader indicates 'exhaust cam over-retarded' with misfires on two cylinders of bank 2. This issue is becoming increasingly frustrating. I'm at a loss as to what could be causing this. Any help or technical insight would be much appreciated. Thanks, Mike.

Anonymous 2019-03-10 13:22

A P0019 error on bank 2 may indicate the source of misfires in that cylinder bank. Possible causes include: - Stretched timing chain or a tooth skipped due to wear - Misalignment between timing belt/chain and engine components - Crankshaft or camshaft tone rings slipped or broken - Faulty crankshaft or camshaft sensors - Damaged wiring harnesses connected to sensors - Damaged tensioner for timing belt or chain - Improperly torqued crankshaft balancer - Engine misbuild or incorrect timing - Missing or loose crankshaft balancer bolt - CMP actuator solenoid stuck open - CMP actuator stuck at non-zero position For more detailed information, refer to official P0019 troubleshooting resources.