2011 Mercedes-benz S550 problems

General information about Mercedes-benz-S550
Overview of popular issues
Recalls list

The Mercedes-Benz S-Class, formerly known as Sonderklasse (German for "special class", abbreviated as "S-Klasse"), is a series of full-sized luxury sedans, limousines and armored sedans produced by the German automaker Mercedes-Benz. The S-Class is the designation for top-of-the-line Mercedes-Benz models and was officially introduced in 1972 with the W116, and has remained in use ever since. The S-Class is one of the flagship vehicles for Mercedes-Benz.

The S-Class has debuted many of the company's latest innovations, including drivetrain technologies, interior features, and safety systems (such as the first seatbelt pretensioners). The S-Class has ranked as the world's best-selling luxury sedan. In automotive terms, Sonderklasse refers to "a specially outfitted car." Although used colloquially for decades, following its official application in 1972, six generations of officially named S-Klasse sedans have been produced.

In 1981, the two-door, four-seat S-Class, designated as SEC, was introduced, sharing the petrol V8 engines with its four-door version, W126. After the introduction of a new nomenclature scheme, SEC was simply renamed as S-Class Coupé. For the 1996 model year, the coupé was separated from the S-Class line and named as new CL-Class (in line with other two-door models: CLK, SL, and SLK); however, the CL-Class was reintegrated into the S-Class model line (same with CLK becoming E-Class Coupé and Cabriolet). The first-ever S-Class convertible since 1972, internally named A217, was introduced and became a one-generation model only. After the end of W222 production in 2020, the successors to the C217 coupé and A217 convertible are not planned, citing the low demand for those models and stronger demand for SUV models.

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Common 2011 Mercedes-benz S550 problems

The 2011 Mercedes-Benz S550, a part of the W221 model lineup, is known for its luxurious features and performance. However, like any other vehicle, it has certain issues that owners have reported over the years. Here are some of the common problems with the 2011 Mercedes-Benz S550, based on complaints from owners:

Air Suspension Compressor Failure: The AIRMATIC suspension system relies on an air suspension compressor to maintain the ride height and suspension performance. Over time, these compressors can fail, leading to suspension issues. Replacing the air suspension compressor can be quite expensive, with estimates ranging from $1,157 to $1,197.

Electronic Control Module Failure: The S550's active suspension control module, which is responsible for managing the AIRMATIC suspension system, can fail. This can lead to suspension problems and decreased vehicle performance. Replacing the active suspension control module can cost between $628 and $654.

Window Regulator Failure: The window regulator, which is responsible for moving the window up and down, can fail in the S550. This can be caused by corrosion or internal failure of the door modules. Replacing the window regulator and door modules can be a complex and expensive repair, with estimates ranging from $700 to $1,500.

Blower Motor Failure: The blower fan, which is responsible for circulating air through the vehicle's HVAC system, can fail due to moisture. This can lead to intermittent or complete failure of the A/C and heat systems. Replacing the blower motor can cost between $650 and $900 at the dealership.

Seat Issues: The S550's front seats, particularly the optional dynamic multi-contour seats, contain numerous air bladders, valves, hoses, electronic control modules, motors, and heating pads. These components can fail or leak, leading to issues with seat adjustment, ventilation, and heating. Repairs can be complex and expensive, with estimates ranging from $150 to $300 for DIY repairs.

Sunroof Drain Clogging: The sunroof drains in the S550 can become clogged, leading to water leaks and potential damage to the vehicle's interior. Regular cleaning of the sunroof drains is recommended to prevent this issue.

Transmission Valve Body Issues: The transmission valve body, which controls the shifting of the automatic transmission, can fail in the S550. This can lead to rough shifting, delayed engagement, or complete transmission failure. Repairs can be expensive, with estimates ranging from $700 to $1,500.

While these issues can be concerning, it's important to note that a well-maintained 2011 Mercedes-Benz S550 can be a reliable and enjoyable vehicle. Regular maintenance and addressing issues promptly can help ensure a longer lifespan and better performance for the S550.

Is the 2011 Mercedes S550 reliable?

The average rating is a 4.7 out of 5 stars. The 2011 Mercedes-Benz S550 Reliability Rating is 3.0 out of 5. It ranks 27th out of 32 for all car brands.

Is S550 expensive to maintain?

The average total annual cost for repairs and maintenance on a Mercedes-Benz S550 is $1,249, compared to an average of $976 for luxury fullsize cars and $652 for all vehicle models. The average total annual cost for unscheduled repairs and maintenance across all model years of a vehicle.

How reliable is the Mercedes S-Class?

Is the Mercedes S-Class a reliable car? According to WhatCar, the W221 is a robust machine with plenty of high-mileage examples that are still safe on the roads. AutoExpress gives it 4.5 stars out of 5 for reliability, but this can depend on the car's model, year, mileage and how well it has been maintained.

How much is a S550 worth?

About Mercedes-Benz S-Class S 550

Used examples on CarGurus range from $5,999 to $123,456 with an average price of $18,044.

Is the 2011 Mercedes S550 reliable?

The average rating is a 4.7 out of 5 stars. The 2011 Mercedes-Benz S550 Reliability Rating is 3.0 out of 5. It ranks 27th out of 32 for all car brands.

Is S550 expensive to maintain?

Is 2012 S550 a good car?

5 car owners like you reviewed their 2012 Mercedes-Benz S550. The average rating is a 4.1 out of 5 stars. The 2012 Mercedes-Benz S550 Reliability Rating is 3.0 out of 5.

Is the Mercedes S-Class reliable?

2011 Mercedes-benz S550 complaints

The NHTSA has received 0 complaints about various vehicle components related to the 2011 Mercedes-benz S550.

You can leave your car complaint via the special form below.

2011 Mercedes-benz S550 recalls

The National Highway Traffic Safety Administration (NHTSA) has issued 2 recalls for different components of the 2011 Mercedes-benz S550.

2012-12-03

Manufacturer: Mercedes-Benz USA, LLC.
Components: FUEL SYSTEM, GASOLINE
Summary: Mercedes-Benz is recalling certain model year 2011-2012 S400, S550, S550 4Matic, S63 AMG, C300, C300 4Matic, E350, GLK350, GLK350 4Matic, CL550 4Matic, and CL63 AMG vehicles manufactured from April 18, 2011, through July 12, 2011. Due to an irregularity stemming from the molding process of the fuel filter flange, the fuel filter flange may crack when operated in high temperatures.
Consequence: If the fuel filter flange cracks, it will leak fuel which may lead to a fire if an external ignition source is present.
Remedy: Mercedes-Benz will notify owners, and dealers will replace the fuel filter, free of charge. The recall campaign is expected to begin in February 2013. Owners may contact Mercedes-Benz at 1-800-367-6372.

2011-10-03

Manufacturer: Mercedes-Benz USA, LLC.
Components: TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS
Summary: Mercedes-Benz USA, LLC (Mercedes Benz) is recalling certain model year 2011-2012 S550, S550 CGI, S63, S600 Bi-Turbo, S65 AMG, S550 4-Matic, and S550 CGI 4-Matic and S400 Hybrid vehicles manufactured from March 3, 2011, through July 30, 2011, for failing to comply with the requirements of Federal Motor Vehicles Safety Standard (FMVSS) number 138, "Tire Pressure Monitoring System (TPMS)." The tire pressure monitoring system indicators may only illuminate for a portion of the time required by the standard and under certain conditions may not re-illuminate immediately after the vehicle is restarted as required.
Consequence: If all four wheel sensors in the subject vehicles are simultaneously malfunctioning or missing, the TPMS will provide an initial warning, but this warning will not automatically repeat on subsequent ignition cycles, failing to remind the driver that the system is offline. Driving unknowingly with incorrectly inflated tires may result in sudden tire failure, increasing the risk of a crash.
Remedy: Mercedes Benz will notify owners, and dealers will reprogram the tire pressure monitoring unit, free of charge. The recall began on September 12, 2014. Owners may contact Mercedes Benz at 1-800-367-6372.

Additional sources

More sources of information about 2011 Mercedes-benz S550 problems:

2011 Mercedes-Benz S550 Problems and Complaints - 5 Issues

https://repairpal.com/2011-mercedes-benz-s550/problems

Problem with your 2011 Mercedes-Benz S550? Our list of 5 known complaints reported by owners can help you fix your 2011 Mercedes-Benz S550.

Thinking of buying a 2011 S550 with 55k miles. Any know issues ...

https://mbworld.org/forums/s-class-w221/683646-thinking-buying-2011-s550-55k-miles-any-know-issues-reliability.html

Sep 26, 2017 ... The car was in excellent shape from the outside and inside and appeared to run well. My question to all of you is ....what known issues are ...

2011 Mercedes-Benz S-Class Problems | Kelley Blue Book

https://www.kbb.com/mercedes-benz/s-class/2011/common-problems/

How reliable is the 2011 Mercedes-Benz S-Class? See the most common repairs performed and learn if your vehicle is at risk for major repairs in the next 12 ...

Looking to buy 2010 S550 with High milage, risky? - MBWorld.org ...

https://mbworld.org/forums/s-class-w221/606141-looking-buy-2010-s550-high-milage-risky.html

Nov 14, 2015 ... ... known for having problems? Any owners out ... In 2011 that car was worth about $18k. It ... Mercedes-Benz 2007 S550, 2012 S550 4-Matic, 2015 GL450.