The active body control system can leak fluid from numerous areas, including the tandem pump, hydraulic lines, struts, and/or seals. If it is not repaired, the vehicle ride height could drop too low and cause damage to the undercarriage.
Resources for the Repair and Maintenance of your 2003 Mercedes-Benz SL55 AMG
2003 Mercedes-Benz SL55 AMG
2003 Mercedes-Benz SL55 AMG Problems
Leaks in the pneumatic system will cause problems with the dynamic seats and the trunk and/or door closing assist.
The engine may develop a stalling and/or no start condition due to a failed crankshaft position sensor.
Front thrust arm and control arm bushings can crack and sometimes tear completely. If this is not repaired quickly, damage to the front subframe unit will occur, which is very expensive to repair. Updated control arms (that prevent damage to the subframe when the bushings wear out) are available.
The anti-lock brake system (ABS) modulator assembly may fail due to dirty brake fluid. Our technicians recommend a complete brake system flush every two years in order to help prevent this problem.
2003 Mercedes-Benz SL55 AMG Recalls (Recent)
RepairPal Expert Overview:
Due to deterioration of the wiring harness connection or failure of the hydraulic pump, the sensotronic brake control (SBC) system may default to the hydraulic back-up mode. In the back-up mode, the driver has braking power sufficient to stop the vehicle, but greater brake pedal pressure is required and brake pedal travel will be noticeably longer. Dealers will install a bracket and replacement ground wire to the SBC pump unit on all affected vehicles. Additionally, dealers will inspect and replace the SSC pump unit in certain SL models. The Mercedes-Benz recall numbers are 2005070007 AND 2005110001.
RepairPal Expert Overview:
High mileage combined with a high number of brake actuations, or a high brake actuation frequency, can cause the pump motor of the SBC to run out of permissible tolerances. As a result, excessively high pressure may build the high pressure line of the brake system. If this occurs, the system will switch into the hydraulic function mode as designed. Sensotronic brake control is disabled when the brake system is functioning in the hydraulic mode. Dealers will inspect the SBC hydraulic unit and replace it if necessary to correct this concern. The Mercedes-Benz recall number is 2004 050014.
RepairPal Expert Overview:
There is a faulty software calibration that affects several areas including shutting off the fuel supply in a collision. This could cause a fire hazard during an accident. Dealers will reprogram this software. The Mercedes-Benz recall number is 2008 070001. This recall began during August, 2008.
2003 Mercedes-Benz SL55 AMG Questions and Answers
when my car gets hot the engine performance is retarded ? not overheating
engine management retards, or super charger not switched on ? about 50% of the normal power ?
the top will only lift part way up trunk opens but top stay in trunk
Thus the fuel pump keep working contimuosly while the engine is running even on slow running. My Email is email@example.com
how do i get the cd's out of the changer. how do i get the changer out of its slot?
2003 Mercedes-Benz SL55 AMG Reviews
The most unreliable car I've ever owned. Here is the abbreviated version of my car's failure list since I purchased it with 42K miles about 2 years ago (now about 60K miles): Supercharger pulley bearings broke, idler pulley bearings broke, closure panel for folding hardtop failed (other roof closure trim broke and came off), ABC suspension has failed and required major work twice, shifter has failed and required replacement, transmission fluid leaks from sensor connection,engine temperature sensor failed, washer fluid leaks from fluid level sensor, shroud inside rear wheel well has broken twice(never in an accident), roof lifting button inside trunk (when roof is stowed) has failed and required replacement, various trim pieces have cracked and or rattle regularly. All this and much more in a car with less than 60K miles. INSANELY UNRELIABLE AND THE MANUFACTURER COULDN'T CARE LESS. Stick with japanese vehicles. They seem to take more pride in the quality and reliability of their vehicles.
We loved ours, until it spontaneosly set itself on fire two weeks ago-July 2012. It had not been driven in a week and was parked in a garage when an electrical fire occurred behind the passenger side and smoldered the interior. Luckily, someone happened to be in the garage and noticed it at 2AM and called the fire department. No one was injured and only our car was severely damaged. Still waiting to find out more!
Car is amazing in every way power Handling looks , however its like maintaining a high performance race car which i guess it some what is. Just disappointing thought Mercedes made a more reliable vehicle In a period of 6 months my hydrolic suspension puked all over my driveway and the car dropped to the floor then the motor mounts went and the car felt like it was going to break apart. then the constant ever raging battle with the check engine light. just be prepared to write extremely large checks on a consistent basis.
Very strong drivetrain. Issues are with electronics and accessories, particularly Active Body Control. Shame the rest of the car isn't a great as the engine and transmission, but it still is a wonderful beast! It's a completely different car from the standard SL with the non-supercharged engine.