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P0022 - "A" Camshaft Position - Timing Over-Retarded (Bank 2)
P0025 - "B" Camshaft Position - Timing Over-Retarded (Bank 2)
hard starting
poor idle
stalling
Incorrect camshaft timing
Wiring problems (harness/wiring) in intake timing control valve control solenoid system
Continuous oil flow to VCT piston chamber
Failed timing valve control solenoid (stuck open)
of course could be the dodgy idler worn out due to the one in the V as ealry cars had them made of untempered chocolate
but a less painful one if lucky could be the sensors made of Swiss cheese
I would remove the top front cover and inspect the area around the cam sensors & adjusters. Do you have the additional wire harnesses on the cam adjusters? (figure 4 below)
My M272 engine has 160,000 miles. I had one small oil leak on the passenger side which was solved by replacing one of the cam sensors o-rings.
what mileage ? cam chain stretches / or there's no teeth left on the idler so bank 2 goes out of time
there was an update to tell the car to be more tolerant and later sensors that actually did something - if no one bothered with those changes its no much surprise
don't think servicing has any bearing on a german car lasting - its little to do with it - blatant profiteering / global destruction of society is their end game and their products are part of the problem
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.
