Mercedes-Benz S550 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your Mercedes-Benz S550

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 engine may develop a stalling and/or no start condition due to a failed crankshaft position sensor.

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.

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Mercedes-Benz S550 Questions

Seems that the AC will freeze up on a road trip after 3 to 4 hours drive time. Shut it off, defrosts itself and good to go again for a while. Local Mercedes dealer's service department has "never had that problem before". Where have you heard that before?

I can be driving and all of a sudden air is completely off with no sound at all,then it will go back on every so often.Could it eve the blower?,or a bad circuit,help,lol

Seems like Computer has to reset itself everytime i restart the car. Car drops down all resets are lost, interior light dont stay on etc. and check engine light is on had it check the code had something to do with battery but I bought a new one still does same thing

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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.

During production, on fifty-four Mercedes S-Class models, the front and rear door locks may have been mistakenly interchanged. This means that a rear passenger could open the rear door with a simple pull of the interior door handle, and the front passenger could not open by pulling on the interior handle. This situation could affect the safe exiting of the vehicle in a crash or protection against the accidental opening of the rear door by a child. Dealers will inspect the part numbers on all door locks and replace any that are incorrect. The recall began on March 27, 2009. The Mercedes-Benz recall number is 2009030001.

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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 have had some issues with vibrations in the steering and the car not riding like luxury vehicle, feeling too many bumps. However; I'm working with the dealership to correct this issue.

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