2007 Mercedes-Benz SL-Class owner complaints

The brakes totally failed with little warning. In mid-october, 2018 driving about 15 MPH my brake light came on and then within approximately 5 seconds alarms started sounding and I totally lost all braking power. Mercedes of denver repaired. On december 17 same exact thing happened at an even slower speed but this time the loss of brakes was instantaneous. Very concerned what would have happened had this happened at higher speed.

Tl* the contact owns a 2007 Mercedes benz sl550. The contact stated that the brake failed to engage while driving 25 MPH. The vehicle was towed to the dealer where a diagnostic was performed that determined that the braking system experienced a total failure. The braking system was replaced. The manufacturer was made aware of the failure. The VIN was not available. The failure and current mileage was 57,000.

The vehicles brakes stopped working due to the sensotronic brake control unit. I'm told that there is a limited set number of how many iterations you can get out of this part before it stops working.

Defective brakes and rotors on Mercedes s550 wear at unacceptable rate resulting in the Mercedes benz of sarasota service center advising the s550 is unsafe to drive. *tr

Tl* the contact owns a 2007 Mercedes-benz sl600. While the vehicle was in reverse, the ABS and esp warning indicators illuminated and the brake pedal traveled to the floorboard. The failure occurred one other time. The vehicle was towed to the dealer where it was diagnosed that there was catastrophic brake failure and the sbc unit needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 92,000.

Complete failure of the instrument cluster... Fuel gauge / odometer / speed / tachometer / turning signals / temperature

I purchased this vehicle in a private sale in September 2025. The battery Warning light was on and the radio was not working either. I had the vehicle inspected by the Mercedes dealer and was told the batteries were being drained because the BCM (Battery Control Module) I was told there was nothing they can do because Mercedes discontinued the replacement parts. So I started to investigate the BCM issue in this model and come to find out when they go bad the vehicles will get on fire, many owners around the world have posted the burned BCM & cars as well. I manage to take my BCM out and opened for inspection and is burned out, I was lucky the car did not catch fire. I have pictures. This should be a recall, anything that could ignite the vehicle should be a recall

This vehicle caught fire on its own while parked in a locked garage. The fire was in the trunk and involved various electrical and mechanical components and wiring harnesses. The car filled with dense smoke which coated everything with thick soot. The smoked seeped into everything including the closed console compartment and glove compartment. I believe the fire itself did not spread because of a lack of oxygen as the car was parked with top folding metal top up and the windows closed. The fire occurred on feb. 16, 2018, and was not discovered until the following day. The car was not economically repairable, and the insurance company provided a settlement in exchange for the car, which, I presume, was sold at a salvage auction. This has occurred before. I don't know how many times.

Tl* the contact owns a 2007 Mercedes benz sl55. The contact stated that the safety restraint system light illuminated constantly while the vehicle was on. The vehicle was taken to the dealer on many occasions but could not duplicate the failure. The vehicle was not repaired. The manufacturer was notified who informed the contact to take the vehicle back to the dealer. The failure mileage was 31,200.

The incident I am reporting is almost identical to the complaint I read on your web page. I was enroute to the Mercedes dealer ship to purchase a switch for my electric windows. I had noticed enroute that the vehicle seemed to not be shifting. I looked down to see if I had someway manually shifted down. I had not and when I attempted to accelerate it seemed I was in second gear. I was approx three blocks from the dealership so I slowed to about 20 MPH. I stopped at the traffic light in front of the dealership and when the light changed--the veh would not move. Somewhat panicked I tried to shift into gear but was unable to. The veh stalled and each time I restarted and attempted to shift into gear the vehicle transmission would "jerk" but not move. Finally after much of doing I don't know w

Tl*the contact owns a 2007 Mercedes benz sl550. While driving approximately 45 MPH, the vehicle completely shut off without warning. Two minutes later, the vehicle restarted and was taken to the dealer. The dealer stated that the transmission needed to be replaced. The contact no longer wanted the vehicle because it only had 80 miles and the dealer provided him with a new one. The powertrain was unknown. The current and failure mileages were 80.

When the transmission was not functioning correctly, at least one of these events would occur: a) the vehicle would not downshift, it would remain stuck in high gear. B) the car would not shift into idle at stop, then it would stall. C) when the transmission would not up-shift, the car would be stuck in "limp home " mode (second gear?). D) peddles would not be functional. The proper operation would usually return after cycling the ignition several times in order to effect a "re-set" of the transmission system. Before a reset actually took hold, the transmission would shift very "hard" and "jolt" onto drive or reverse. *tr

The contact owns a 2007 Mercedes-Benz SL550. The contact stated while driving 45 MPH on a slightly bumpy road, the message "ABC System Malfunction” was displayed. The vehicle started shuddering significantly and lost traction and stability control. The contact veered to the side of the road. The contact was able to continue driving at slower speeds. The vehicle was taken to the dealer where it was diagnosed that the rear suspension shocks and ABC system needed to be replaced. The dealer also diagnosed that other unknown repair needed to be completed. The vehicle was not repaired. The contact associated the failure with NHTSA Campaign Number: 22V168000 (Exterior Lighting, Electronic Stability Control, Engine and Engine Cooling). The manufacturer was notified of the failure and referred the

The contact owns a 2007 Mercedes-Benz SL55. The contact stated that while driving at an undisclosed speed, the message "Service Active Body Control" was displayed on the instrument panel. In addition, the contact stated that prior to receiving the Active Body Control message, several fluid stains were found on the ground. The contact believed that the stains were hydraulic fluid. The vehicle was taken to the dealer, where it was diagnosed with active body control failure, which caused the leak of the hydraulic fluid. The local dealer provided the contact with NHTSA Campaign Number: 07V263000 (SUSPENSION, ENGINE, AND ENGINE COOLING). The contact related the failure to the recall; however, the VIN was not included. The vehicle was not repaired. The manufacturer was made aware of the failure

Tl* the contact owns a 2007 Mercedes cl550. The contact stated that the vehicle was started and traveled approximately 300 yards when a loud pop was heard under the front driver side of the vehicle. The contact stated this happened 3 weeks after the dealer said that the ABS suspension unit needed to be replaced. The contact stated that just as they pulled to the side of the road there was another loud pop and the vehicle caught on fire. The fire started at the shock under the wheel base of the front driver side wheel. The police and fire department responded to the fire and filed a report. The fire continued to spread very quickly and the vehicle was set to be inspected. The failure mileage and current mileages 42,000.

Tl* the contact owns a 2007 Mercedes-benz sl550. While driving 35 MPH, the contact experienced catastrophic brake failure. The brake pedal traveled to the floorboard when depressed. The contact had to coast the vehicle off the road and apply extreme force to the brake pedal to stop the vehicle. An emergency warning indicator flashed and various other warning indicators illuminated. The power steering became disabled when the failure occurred. The contact was able to restart the vehicle after several attempts and disabled the alarm system from the owner's manual. The vehicle was driven to the dealer (Mercedes-benz of catonsville, 6631 baltimore national pike, catonsville, md 21228, (410) 788-7744) where it was diagnosed that there was a sensotronic brake control (sbc) failure and that the s

Frequently and intermittently (not every time) when I start my car's engine, the SRS malfunction warning light and "take car to service facility" message display appear on the instrument panel. When the SRS warning lights are illuminated, the windshield wipers do not work, irrespective of how the wiper controls are manipulated (one swipe ... Intermittent swipe ... Slow swipe ... Fast swipe ... Windshield washer squirter). When I try turning on the wipers while the SRS malfunction warning light is illuminated, the roll bar malfunction alert yellow symbol illuminates on the instrument panel and I hear an audible clicking sound from somewhere behind the seats (this is a two-seater car). I tried cycling the roll bar all the way through its range of motion ... From all the way stowed, to al

Clear headlight lens cover gets wet on inside whenever it rains causing light from headlamp to be diffused and restricting reach of beam. Manufacturer says leave headlight on dissipate moisture, however seems unsafe while moisture present. *tr

2007 Mercedes benz sl 550. Consumer writes in regards to several attempts to reach out to dealerships to repair vehicle engine failure. *smd the spark plugs, valve, engine, transmission mounts and cam plugs on the left cylinder head were all replaced. However, two days later, the vehicle exhibited the same shake as before. As the consumer was driving home, the vehicle made a popping noise and lost all power. She later discovered the engine had exploded. The consumer stated a class action suit was sent to her home regarding an issue with shaft sprockets and idle gear. *jb