The camshaft adjuster solenoid (which is related to the variable valve timing system) may fail or timing chain/balance shaft components may wear, resulting in illumination of the Check Engine Light and various drivability issues. Mercedes-Benz has released a service bulletin outlining specific repair instructions depending on fault codes stored.
Resources for the Repair and Maintenance of your 2009 Mercedes-Benz E350
2009 Mercedes-Benz E350
2009 Mercedes-Benz E350 Problems
Vehicles equipped with a 7-speed automatic transmission may develop a rough shifting condition, most commonly going up from first to second gear and going down from third to second or second to first gear. Our technicians tell us this is due to an internal component failure. Mercedes has released updated parts; the transmission will need to be removed and disassembled to complete the necessary repairs.
The relay which turns the airmatic suspension pump on may fail causing the pump to run continuously. This can result in failure of the pump motor or a dead battery as the pump motor will continue to run after the car is turned off. Also, Worn airmatic pump mount bushings can causes noises in the front axle while driving on bumpy roads or a buzzing noise while the pump is running.
The engine may develop a stalling and/or no start condition due to a failed crankshaft position sensor.
Lack of audio or cell phone functionality may be related to the failure of the audio gateway module.
2009 Mercedes-Benz E350 Questions and Answers
I overloaded my phone book and need to delete the entire book and start again
I HAVE BEEN HEARING A RATTLE UNDER MY DRIVERS SIDE DOOR THAT DOESNT LAST ANY LONGER THAN A MINUTE. MAY HAPPEN ONCE OR TWICE DAILY. DEALERSHIP CANT FIND ANYTHING WRONG! VERY FRUSTRATING BECAUSE I KN...
What is the cost of replacing a windshield?
How do I change the air filters. I've read that the 2 air intake hoses come right off and the the filter housing is suppose to come off. Maybe I'm just over cautious. I have yet to get ...
2009 Mercedes-Benz E350 Reviews
I HAVE BEEN HAVING TOO MANY PROBLEMS!!! MY E35O KNOCKS WHEN IT IS FIRST STARTED AND EXHAUST SYSTEM RATTLES. THESE PROBLEMS STARTED SIX MONTHS AFTER PURCHASING THE CAR. SERVICE DEPT CLAIMS THEY DO NOT HEAR THE KNOCKS OR RATTLES AND CANT FIND ANYTHING WRONG!! IVE TAKEN IT IN THREE TIMES FOR THESE SAME PROBLEMS. I AM STILL HEARING THESE KNOCKS AND RATTLES, SO FRUSTRATING!
I believe this is the best car on the road. I traded this in just a month ago for a 2010. It is so great.