2008 Mercedes-Benz SL550 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2008 Mercedes-Benz SL550

2008 Mercedes-Benz SL550 Problems

Active Body Control System Can Leak Hydraulic Fluid

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.

Evaporator Temperature Sensor Failure

The evaporator temperature sensor can fail, causing the AC compressor not to cycle. If the AC compressor does not turn on, the AC system will not blow cold air. If the compressor is stuck on, the air will be very cold at first, before warming up.

Wear causes noise at vario roof seals on high mileage vehicles
On higher mileage vehicles, wear causes noise at the vario roof seals. Lubricating the seals can usually cure the problem; in most cases, the seals do not need replacement.

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2008 Mercedes-Benz SL550 Questions

have a squeak when driving (1 answer)

squeak appears to be behind me when driving, louder on rough roads and almost silent on smooth roads. squeak with top down or up; not as loud with top down.

it appeared to be locked in a lower gear. (1 answer)

I left a store and the car was very slow and the RPM's were up to 4000 plus and going nowhere. i shifted to N and back to D and it then started acting normal. I drove it back home next day about 200 plus miles and had no issues. Would it be a fluke or bite me later?

Has the Mercedes SL550 models had problems with the convertible top brackets? (1 answer)

We have a 2008 SL550 with less than 19,000 miles and the convertible top stop working. The service dept found that the brackets were bad. The mechanic stated they have replaced them on several other cars.

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2008 Mercedes-Benz SL550 Recalls

Internal Failure of Front Interior Control Module

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.

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2008 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.

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