2011 Mercedes-Benz S550 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2011 Mercedes-Benz S550

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2011 Mercedes-Benz S550 Problems

Brake Pads & Rotors May Wear After 20,000 Miles

As a way to increase braking performance, the brake pads and rotors are make of a softer material and may be in need of replacement after approximately 20,000 miles; owners should be vigilant about getting their brakes checked.

Oil Seepage on Back of the Cylinder Heads

The Mercedes Benz S550 may have engine oil seeping or leaking from the back of the cylinder heads. This is commonly misdiagnosed as leaking valve covers.

On the back of the cylinder heads there are three, in total, plastic expansion plugs that plug access ports to the camshafts. These plugs are well known for seeping oil, and leaking if left unattended. The oil will run down the back of the engine and eventually make it to the ground. 

Replacement of these three plastic plugs is extremely simple, and should be done as regular maintenance. The recommended interval for replacement is every 60,000 miles.

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2011 Mercedes-Benz S550 Questions

Recurring issue, appears like the battery is dead. (2 answers)

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...

With 58000 miles on my car, should a struit go bad with normal driving? (1 answer)

Anyone else had the same problems with heat & A/C &, if so, were they corrected (3 answers)

When on a highway drive lasting more than 1 hour, my heat and A/C system seems to shut down. The blowers won't work and adjusting the temp. has no effect. Must turn off car, let it sit for a while and restart it. The systems then work, at least for a while. My dealer has not been able to find...

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2011 Mercedes-Benz S550 Recalls

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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2011 Mercedes-Benz S550 Reviews

Rated
based on 2 customer reviews
I agree with the writer in Atanta - that "kick" in low gear up the slightest of incline drives me crazy ! My other issues are the lack of side sunshades, the back seats not being heated, and not enough back-up cameras. It is a great car and I love the smooth ride and the interior and exterior styling. I compare heavily to the BMW 750IL that I drove 10 years prior. I also got used to free servic...
I love this car and am very happy I bought it BUT I am concerned. 1 - The clutch pads may have a problem (transmission "kicks" in low gear up a hill) and 2 - the exhaust seems loud. I have less that 1,000 miles on the car so I'll take some responsibility for learning how to drive this car but I am concerned. This is the most comfortable car I have ever owned and I love the creature features. Co...

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