RoadVitals

2008 Mercedes-Benz SL550 Owner Complaints

Reports submitted to NHTSA by owners and drivers, shown in full

Data refreshed

Complaints on fileComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
4
Latest Dec 5, 2017
Crash or fire reportedComplaints whose submitter recorded that a crash or a fire occurred. These are the reporter's own answers on the NHTSA form, not verified findings.
0
Filed in the last 12 monthsReports filed with NHTSA in the trailing 365 days. Recent volume reflects attention and vehicle age as much as anything else.
0
Reports on file since Jul 22, 2011

What this page shows

Our database holds 4 NHTSA owner-reported complaints for the 2008 Mercedes-Benz SL550. Each one is a report filed by an owner or driver and published by NHTSA without most of them being verified. A complaint is not a confirmed defect, not a recall and not a manufacturer bulletin. Narratives are shown exactly as filed.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

Complaints, most recent first

Showing 1–4 of 4

Brakes
Filed Dec 5, 2017

WHILE DRIVING AT 50MPH, AUDIBLE AND VISUAL WARNINGS OF BRAKE FAILURE. NO BRAKING AVAILABLE OTHER THAN TRANSMISSION DOWNSHIFT FOR ENGINE BRAKING.

NHTSA ID
11052492
Incident
Dec 4, 2017
Mileage
57,000 mi
BrakesSteering
Filed Feb 27, 2014

THE SUBJECT CAR, A 2008 MERCDES BENZ SL550, THAT HAS NEVER BEEN IN AN ACCIDENT AND IS STORED IN A GARAGE. THE CAR WAS STARTED AND DRIVEN OUT OF THE GARAGE ON TO THE STREET, APPROXIMATELY 50 YARDS LATER WHILE DRIVING ABOUT 20 MPH, THE BRAKES 100% FAILED AND THE POWER ASSISTED STEERING STOP WORKING. AFTER COASTING TO A STOP AND PLACING THE CAR IN PARK. THE BRAKE PEDAL WENT ALL THE WAY TO THE FLOOR. THE DASH BOARD FLASHED A STOP SIGN SYMBOL AND A MESSAGE THAT INCREASE PEDAL PRESSURE WOULD BE REQUIRED. THE CAR WAS TURNED OFF AND RESTARTED. AT FIRST THE BRAKES AND STEERING SEEM NORMAL BUT AFTER ABOUT 10 SECONDS, AGAIN THE BRAKES AND STEERING FAILED. AT THIS POINT A TOW TRUCK WAS CALLED AND THE VEHICLE WAS TOWED TO A LOCAL MECHANIC. THE CAR WAS INSPECTED AND THE FAILURE WAS REPEATED. THE SHOP INSPECTED THE CAR AND DIAGNOSED THE CAR WITH A COMPUTER. SEVERAL CODES WERE APPARENT. THE SHOP RECOMMENDED THAT THE BRAKE SYSTEM BE FLUSHED AND THE COMPUTER RESET. THE ELECTRICAL SYSTEM WAS INSPECTED AS WELL AS THE BATTERIES. THE CAR HAS BEEN RETURNED TO SERVICE TODAY. I AM CONCERNED THAT THE BRAKE SYSTEM SHOULD NOT BE DESIGNED IN A WAY THAT A COMPUTER FAILURE WOULD RENDER THE BRAKES USELESS AND FAIL 100%. IF THE BRAKES WERE TO FAIL AT HIGHER SPEEDS AND IN TRAFFIC, THERE COULD HAVE BEEN FATAL RESULTS. MY WIFE NO LONGER FEELS SAFE DRIVING THIS CAR.

NHTSA ID
10567227
Incident
Nov 25, 2013
Mileage
66,550 mi
Interior & seats
Filed Sep 15, 2011

DRIVER PLACED A PURSE BEHIND THE FRONT SEAT OF THE VEHICLE. THE VEHICLE HAS POWER SEATS WHICH OPERATE ON A MOTOR. THE STRAP FROM THE PURSE APPARENTLY CAME IN CONTACT WITH THE SEAT IN MOTION CAUSING SMOLDERING AND EVENTUALLY THE SEAT MOTOR TO BURN ITSELF OUT. A FIRE WAS AVOIDED DUE TO A FUSE CAUSING THE MOTOR TO STOP HOWEVER THE MOTOR WHILE IT WAS OPERATING AND PRIOR TO THE FUSE KICKING IN NEARLY CAUSED A FIRE. THE SEAT SHOULD BE EQUIPPED WITH A CONTACT MECHANISM ( SIMILAR TO THAT IN THE WINDOW AND ELEVATOR DOORS OR GARAGE DOORS WHICH CAUSES THE SEAT TO STOP UPON CONTACT. IF MAKEUP OR OTHER FLAMMABLE PRODUCTS HAD BEEN IN THE BAG, THERE SURELY WOULD HAVE BEEN A FIRE. *KB

NHTSA ID
10425661
Incident
Sep 14, 2011
Mileage
24,000 mi
Engine
Filed Jul 22, 2011

TL* THE CONTACT OWNS A 2008 MERCEDES BENZ SL550. THE CONTACT WAS DRIVING APPROXIMATELY 40 MPH WHEN THE VEHICLE STALLED WITHOUT WARNING. THE VEHICLE WOULD NOT RESTART AND WAS TOWED TO AN AUTHORIZED DEALER WHERE THE COMPUTER SYSTEM WAS REPAIRED. APPROXIMATELY TWO YEARS LATER, THE RECURRED WHETHER THE VEHICLE WAS IN MOTION OR STOPPED. DURING THE RECURRENCES, THE VEHICLE WOULD RESTART AFTER STALLING. THE VEHICLE WAS TOWED BACK TO THE AUTHORIZED DEALER WHERE THEY WERE IN THE PROCESS OF DIAGNOSING THE FAILURE. THE FAILURE MILEAGE WAS UNKNOWN.

NHTSA ID
10414657
Incident
Mar 1, 2009

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.

Data sources

Data on this page last refreshed .