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 Mercedes-Benz SL550
Mercedes-Benz SL550 Models:
Mercedes-Benz SL550 Problems
Leaks in the pneumatic system will cause problems with the dynamic seats and the trunk and/or door closing assist.
Due to the size and material used on the brakes of these vehicles, the brakes may start to squeak around the 50 percent wear point. The brake rotor surfaces become uneven, causing a lip to form at the outer edge of the rotor. Because of this, the rotors are usually replaced when the pads are worn (pad life varies depending on driving style and terrain).
The camshaft adjuster solenoid (which is related to the variable valve timing system) may fail or timing chain/balance shaft components may wear, resulting in illumination of the Check Engine Light and various drivability issues. Mercedes-Benz has released a service bulletin outlining specific repair instructions depending on fault codes stored.
The ESP and BAS warning lights may illuminate due to a failed brake light switch. Replacement of the failed switch should correct this concern.
Mercedes-Benz SL550 Recalls (Recent)
RepairPal Expert Overview:
These vehicles are equipped with a new type of A/C refrigerant - R1234yf. Testing has determined that escaping R1234yf refrigerant may ignite under specific conditions. A severe frontal crash may rupture one of the air conditioner refrigerant lines, which can result in a gaseous mixture of refrigerant being released into the engine compartment. The resulting fire could spread to additional combustible materials. Dealers will replace the R1234yf refrigerant with R134a (which is the type that had been used previously) along with new refrigerant lines (hoses) designed specifically for R134a.
RepairPal Expert Overview:
Transistors used in the front signal acquisition and actuation module (SAM-F) may have been damaged during module assembly. As a result, the module could fail without warning, increasing the risk of a crash. Dealers will inspect and replace the affected modules as necessary. This recall is scheduled to begin on May 2, 2008. The Mercedes-Benz recall number is 2008 030005.
Mercedes-Benz SL550 Questions and Answers
I live in Central CA and have found great deals on a 2007 (13,000 miles) and 2008 (23,000 miles)SL550 and would like to have an estimate of the 5-year average annual maintenance costs for them to h...
The first time upon at the intersection, I went to brake and the pedal went down and not able to brake.The car start beeping and saying to do not move, do not drive call for service.I took the car ...
There are no Visible screws or clips. I have the light asimbly but can't access under the headliner.
The speedometor is down to almost "0"
What can it be? Should I be worried. ?
I'm not getting any (check-engine)
Mercedes-Benz SL550 Reviews
My car has 27,000 miles and starts shaking and making a funny noise. I have a 2009 GL 350, the display panel is not working. I really feel that Mercedes is no longer selling top quality cars that they use too.
I love mine...It's the best car ever!!!
I purchased the SL in 2010, it had 10,400 miles on it. It now has just over 31,000 miles on the odometer. About 6 months ago a valve in the suspension malfunctioned. The extended warranty covered the valve replacement but I ended up paying $600 for fluid replacement. A month ago a hydraulic line in the suspension broke spraying fluid every where. A sensor periodically malfunctions displaying an "Check Oil Level" message. Now the engine has a broken internal part requiring engine removal. This is a sweet ride but the cost of maintenance and numerous trips for repair are annoying and consume a lot of time.
Great driving car. Best convertable yet