Mercedes-Benz S550 Repair and Maintenance

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

Mercedes-Benz S550 Problems

HVAC Blower Motor May Fail

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.

Engine Performance Problems Due to Crankshaft Position Sensor Failure

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

Cracked Driveshaft Flex Discs May Cause Driveshaft Movement/Vibration

A vibration felt through the center floor of the vehicle can be caused by driveshaft flex discs, which crack and shred, causing excessive driveshaft movement. Not repairing these can cause damage to the driveshaft center support bearing, or, in the worst case scenario, damage to the transmission or differential.

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Mercedes-Benz S550 Recalls

Front Seatbelt Anchor

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.

Potential Fuel Leak

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.

Tire Pressure Monitoring System Malfunctions

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.

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Mercedes-Benz S550 Reviews

Purchased 2012 S-550 with 18,000 miles within first month had stall converter replaced in transmission and speaker replaced. Car pulls to right and back tires need replaced every 10,000 miles. At 40,000 had to replace front rotors and brake pads. Very happy with cars performance but replacing tires every 10,000 miles and having to replace brakes at 40,000 is upsetting.
I paid almost 7K to add the monitors in the rear along with all the extras. I was told by the dealer I could use the screens for my laptop while using the built in WiFi in the car for internet. Turns out the internet is only 3G and HORRIBLY slow to the point I can barely send an email. The monitor connection is standard video only! Composite Video!! No HDMI or even VGA. I had to use an HDMI to ...
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...

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