Is there a problem with the M157 AMG engine?
We figured we would knock out the M157 timing chain discussion first since it’s predominately an issue on early model M157 engines. 2011 and 2012 model M157 AMG engines have a problem with oil drainage from the cylinder head on initial start-up. This leads to brief oil starvation of the timing chain tensioner.
Where to find oil leak on cam position sensor?
If the source of the leak was in that area it would have to be tucked away on the right side of the sensor almost under the valve cover in an area with minimal turbulence. Labor calls for 9/10, dealer parts will be $100 and after misc fees im expecting to pay $200.
Why is my M157 leaking oil and coolant?
Also referred to as the timing case cover, the M157 is prone to valve timing cover leaks. Oil and/or coolant may leak from a drain hole located on the front valve timing cover. This leak is typically caused by the timing case cover not seating properly.
Is it possible for a cam sensor to fail?
Yes they fail, but it is very rare. There is so much more oil behind and around the crankshaft pulley then any other pulley or part for that matter on the front of the engine. The cam sensor oil seems isolated.
If the source of the leak was in that area it would have to be tucked away on the right side of the sensor almost under the valve cover in an area with minimal turbulence. Labor calls for 9/10, dealer parts will be $100 and after misc fees im expecting to pay $200.
Yes they fail, but it is very rare. There is so much more oil behind and around the crankshaft pulley then any other pulley or part for that matter on the front of the engine. The cam sensor oil seems isolated.
Why is a bad camshaft seal bad for an engine?
Camshaft seals are usually made of durable rubber materials that allow them to have a long service life. However, over time, these seals can wear out and begin to leak oil. Any sort of engine oil leak is bad for the engine, as the oil is what protects the metal internal components of the engine from friction.
Can a faulty camshaft sensor cause a knocking sound?
Question: Can a faulty camshaft sensor cause a knocking sound? Answer: No, a faulty camshaft sensor can’t cause a knocking sound unless it affects ignition timing. Question: Can a faulty camshaft sensor cause a P0300 code? Answer: A number of faulty components may trigger a P0300 code, including: a bad camshaft position sensor