Mercedes-Benz S550 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your Mercedes-Benz S550
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Mercedes-Benz S550 Problems
The HVAC blower motor may fail. This is commonly caused by water entry through the cabin air filter areas during heavy rain or snow. Failed blower motors should be replaced. Our technicians tell us there is no special fix for this issue at this time.
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.
The engine may develop a stalling and/or no start condition due to a failed crankshaft position sensor.
Mercedes-Benz S550 Questions
I have a 2011 S550. I know for sure it sat for weeks without use prior to buying it and had "hard starting" reported. I have a recurring "dead battery" like failure where the car won't start. Dealer has been good, but baffled. The main battery, starter, alternator, reg...
Mercedes-Benz S550 Recalls
These vehicles are being recalled because the front seat belt anchors may not be installed correctly and can come loose in a crash, increasing the risk of personal injury. Dealers will inspect the affected front seat belt anchors and perform the necessary correction.
Due to a manufacturing defect, a crack can develop on the fuel filter when the vehicle is operated in high temperatures. This crack can result in a fuel leak, increasing the risk of a fire. Dealers will replace the fuel filter to correct this concern.
The tire pressure monitoring system warning light may not come on or stay on for appropriate lengths of time. Dealers will reprogram the tire pressure monitoring unit free of charge to resolve the concern.
Mercedes-Benz S550 Reviews
I found the information RepairPal provided in the common problems section to be helpful and very timely. The common problems around the drivetrain is what I was experiencing and I've been given an estimate of approximately 9k to replace transmission and many other items. Please know an independent certified MB technician found this problem NOT the MB dealership!!! I ask how can a transmissio...
My first Mercedes. a 2012 S550. cars pulls bad to the right. Thought is would be a tire or alignment problem. Was told they all did that, and there was no adjustment to correct it. I did search the internet and found out Mercedes does make a factory repair kit called a caster bolt kits that does allow the caster adjustment. It was installed on my car and did help some, but had to replace both f...
I bought my 2012 S550 on Oct 2012 and noticed the car was pulling to the right while driving on a flat road. I took the car to dealership to fix this alignment problem three times and the problem was not completely fixed. Last time when I brought the car back to dealership, the shop foreman told me that all S550s have the same problem that pull to the right. He even let me test drive another ne...