2009 Mercedes-Benz R350 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2009 Mercedes-Benz R350
2009 Mercedes-Benz R350 Problems
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.
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.
A problem with the ball joints can cause a creaking noise. There is an updated part to remedy this problem.
2009 Mercedes-Benz R350 Questions
I'm hearing this noise twice but today was the first time I herd it in awhile.. My rclass has check engine lite on for mass sensor...how can my car make a rumbling noise with no key in the ignition..
on warm start up only after sitting for about 30 min