About Mercedes-Benz S550
Being a member of the Mercedes-Benz S-Class, formerly known as Sonderklasse (German for "special class", abbreviated as "S-Klasse"), which is Mercedes-Benz's flagship and successor to Mercedes-Benz Type 300, Mercedes-Benz S550 has been built by a German multinational automotive corporation Daimler AG since 2007 as a full-size luxury car. Originally introduced as the fifth-generation S-Class in North America, S550 is always top-of-the-line model in Mercedes-Benz lineup. Competing against the BMW 7 Series, Audi A8 and Jaguar XJ, S550 has won many awards and recognition such as What Car? Safety Award, Wheel Magazine's 2006 Automotive Design Award and so on. Now, S550 is in its second generation.
The first-generation Mercedes-Benz S550 (W221) was produced from 2007 through 2014 and debuted at the 2006 North American International Auto Show in January for North American market to succeed the Mercedes-Benz S-Class (W220). It was offered in only one body style, 4-door sedan and S550 was powered by a 5.5 L V8 good for 383 horsepower and 516 pound-feet of torque and 4.7 L BiTurbo V8 producing 429 hp and 516 lb-ft of torque. And engines sent power through 7G-Tronic sport transmission to rear wheels. Current S550 (W222) began sales in U.S. in September 2013 as a 2014 model. It is available in S550 and S550 4Matic and now it gets power from the 4.7 L BiTurbo V8 rated at 449 horsepower and 516 lb-ft of torque and power is sent through 7-speed automatic, 7G-Tronic Plus, 9-speed automatic and 9G-Tronic to rear wheels or four wheels.
Mercedes-Benz S550 Common Problems & Maintenance Tips
Offering wealth of features, opulent interior and bulletproof construction, Mercedes-Benz S550 remains one of the most desirable choices for a flagship luxury sedan. But as time passes by, you should always be alert that these common problems may appear on your S550:
First, for Mercedes-Benz S550 drivers, braking failure is the most common and serious issue on the vehicle. A well-functioning braking system is the guarantee of a safe ride, therefore, any problem on it should get your enough attention. Some experienced S550 owners complained that after a while of driving, there will be noisy sounds from the brakes and they respond poorly when being depressed; the brake pedal becomes pulsating; the rear brakes get locked up, especially on wet surfaces; the parking brake cable could not hold the vehicle; and both Brake Warning Light and Parking Brake Light come on. Under such circumstance, you had better inspect if the S550 brake pad set, brake disc, brake drum, brake caliper, parking brake cable, brake line and brake proportioning valve are working properly or not.
Second, engine failure often arises when the Mercedes-Benz S550 borders on breaking down. In case it breaks your vehicle down immediately, you had better be familiar with these typical symptoms of engine failure provided by professional S550 repairmen. Generally, this issue often starts with strange sounds such as whining, squealing and rattling from the engine; then the engine will run roughly, suffer from performance issues such as misfiring, stalling and even hard starting or inability to start; oil may leak on the ground so that the fuel economy becomes bad, the vehicle also loses power while acceleration. Once the Check Engine Light is activated, you are supposed to check the S550 spark plug, oxygen sensor, oil filter, cylinder head, engine mount, engine control module, air filter and valve cover gasket thoroughly.
To sustain your Mercedes-Benz S550's overall excellent quality, please attach enough importance to performing routine maintenance on some vulnerable auto parts on it. Some parts such as S550 seat belt, windshield wiper, wiper blade, fog light, headlight, antenna and cabin air filter should be maintained routinely since they are helpful in creating safe and comfortable driving environment but they are exposed to harsh working condition all the time.
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