Model year record

2003 Mercedes-Benz SL-Class recalls & problems

The 2003 Mercedes-Benz SL-Class has 3 safety recalls and 9 owner complaints on file with NHTSA. The most-reported problem area is visibility (3 complaints).

Recalls3safety recalls

Complaints9filed by owners

Crashes · fires1 · 1reported in complaints

Injuries · deaths0 · 0reported in complaints

Safety recalls

Electrical systemJul 7, 2008

Electrical system

Recall 08V303000404 vehicles

Problem: MERCEDES-BENZ IS RECALLING MY 2006-2008 M-CLASS, R-CLASS, MY 2005-2009 SLK-CLASS, MY 2005-2008 C-CLASS, MY 2003-2004 AND 2006-2008 CLK-CLASS, MY 2003-2008 E-CLASS, MY 2004 AND 2008 CL-CLASS, MY 2008 CLS-CLASS, MY 2004 AND 2007-2008 S-CLASS, MY 2003 G-CLASS, AND MY 2003-2004, 2006 AND 2009 SL-CLASS VEHICLES. A SOFTWARE CALIBRATION NUMBER (SCN) CODING RECEIVED ON THE AFFECTED VEHICLES DURING A RECENT WORKSHOP VISIT WAS INCORRECT. DEPENDING ON THE MODEL YEAR AND MODEL AFFECTED, THE RESULTS OF AN INCORRECT SCN CODING CAN AFFECT A NUMBER OF VEHICLE SAFETY AND EMISSION FUNCTIONS INCLUDING THE FOLLOWING TYPES OF FUNCTIONS: (1) THE FUEL GAUGE READINGS MAY BE INCORRECT; (2) A STUCK FUEL-LEVEL SENSOR MAY NOT BE DISPLAYED IN THE INSTRUMENT CLUSTER; (3) THE OBD SYSTEM MAY CAUSE THE CHECK ENGINE LIGHT TO ILLUMINATE INCORRECTLY; AND, (4) THE SPEEDOMETER MAY BE OUT OF TOLERANCE.
Risk: IN THE EVENT OF A VEHICLE CRASH, THE ELECTRICAL FUEL PUMP MAY NOT RECEIVE A CRASH SIGNAL THAT IS REQUIRED FOR THE FUEL PUMP TO DISCONNECT AND PREVENT FUTURE FUEL DELIVERY AS DESIGNED.
Fix: DEALERS WILL RECODE THE SCN FREE OF CHARGE. THE RECALL BEGAN ON AUGUST 30, 2008. OWNERS MAY CONTACT MERCEDES-BENZ AT 1-800-367-6372.

Service brakes, hydraulicApr 1, 2005

Service brakes, hydraulic

Recall 05V133000204,000 vehicles

Problem: ON CERTAIN VEHICLES, THE SENSOTRONIC BRAKE CONTROL (SBC) SYSTEM MAY PREMATURELY SHIFT TO THE HYDRAULIC BACK-UP FUNCTION MODE, DUE TO DETERIORATION OF THE WIRING HARNESS CONNECTION, OR DUE TO PREMATURE FAILURE OF THE HYDRAULIC PUMP.
Risk: IN THE HYDRAULIC BACK-UP MODE, THE DRIVER HAS BRAKING POWER SUFFICIENT TO STOP THE VEHICLE, ALTHOUGH GREATER BRAKE PEDAL PRESSURE IS REQUIRED AND THE BRAKE PEDAL TRAVEL WILL BE NOTICEABLY LONGER.
Fix: DEALERS WILL INSTALL A BRACKET AND REPLACEMENT GROUND WIRE TO THE SBC PUMP UNIT ON ALL VEHICLES FREE OF CHARGE. ADDITIONALLY DEALERS WILL INSPECT AND REPLACE THE SBC PUMP UNIT IN SL VEHICLES PRODUCED DURING A LIMITED PRODUCTION PERIOD. THE RECALL BEGAN ON AUGUST 8, 2005. OWNERS MAY CONTACT MERCEDES-BENZ AT 1-800-367-6372.

Service brakes, hydraulicJun 22, 2004

Service brakes, hydraulic

Recall 04V296000143,387 vehicles

Problem: ON CERTAIN VEHICLES, THE ELECTRONIC MONITORING SYSTEM OF THE SENSOTRONIC BRAKE CONTROL (SBC) IS DESIGNED TO MONITOR THE PRESSURE GRADIENT WITHIN THE HIGH PRESSURE LINE OF THE BRAKE SYSTEM. IF AN UNACCEPTABLE PRESSURE GRADIENT IS DETECTED, THE SYSTEM WILL SWITCH, AS IT IS DESIGNED TO DO, INTO THE HYDRAULIC FUNCTION MODE.
Risk: IF VEHICLES ARE NOT ROUTINELY SERVICED AND HAVE EXTREMELY HIGH MILEAGE COMBINED WITH A HIGH NUMBER OF BRAKE ACTUATIONS, OR A HIGH BRAKE ACTUATION FREQUENCY, THE PUMP MOTOR OF THE SBC MAY RUN OUT OF PERMISSIBLE TOLERANCES, THEREBY TRIGGERING THE HYDRAULIC FUNCTION MODE.
Fix: DEALERS WILL INSPECT THE SBC HYDRAULIC UNIT, REPLACING IT IF NECESSARY. THE RECALL BEGAN ON OCTOBER 21M 2004. OWNERS SHOULD CONTACT MERCEDES-BENZ AT 1-800-367-6372.

Recall repairs are free at any authorised dealer. A recall listed here may already have been fixed on a particular car: enter its 17-character VIN at nhtsa.gov/recalls to see open recalls.

Crash test ratings

2003 Mercedes-Benz SL-Class Convertible w/SAB

OverallNot Rated

Frontal crash	Not Rated
Side crash	Not Rated
Rollover	Not Rated

NHTSA 5-Star Safety Ratings (New Car Assessment Program). Ratings are comparable only between vehicles of similar size and weight, and ratings from 2011 on use tougher tests than earlier years. Photos: NHTSA.

What owners report

Problem area	Complaints	Crashes	Fires	Typical mileage*
VisibilityDefroster/defogger/hvac system › Heater core; Glass, side/rear	3	0	1	9,132 mi
StructureBody › Door; Body › Door › Hinge and attachments	3	0	0	9,132 mi
Service brakes, hydraulic	2	0	0	—
Electrical systemWiring	2	0	0	—
Engine and engine coolingEngine; Exhaust system	2	1	0	—
Suspension	2	0	0	—
Power trainAutomatic transmission	1	0	0	—
Exterior lightingBrake lights	1	0	0	—
Air bags	1	0	0	—
Tires	1	0	0	—
Interior lighting	1	0	0	—
Back over preventionWarnings › External/pedestrian alert	1	0	0	—

*Median odometer reading when the problem happened, where owners gave one. One complaint can name several problem areas.

Recent owner complaints

Service brakes
MY WIFE WAS DRIVING ABOUT 1/2 MILE FROM OUR HOUSE WHEN THE BRAKES COMPLETELY FAILED. SHE WAS ON A BACK ROAD AND HAD TO BRAKE FOR A STOP SIGN. SHE WAS ABLE TO PULL OFF ON THE SIDE OF THE ROAD, TO AVOID REAR ENDING A CAR STOPPED AT THE STOP SIGN, AND FINALLY BRING THE CAR TO A STOP. THE BRAKES STARTED TO WORK WITH ABOUT 1" OF PEDAL FROM THE FLOOR. SHE SAID IT WAS SO HARD TO PUSH ON THE PEDAL THAT SHE COULD BARELY DO IT. LUCKILY SHE WAS NOT HURT. HAD THIS HAPPENED ON A MAJOR ROAD OR HIGHWAY THE RESULTS COULD HAVE BEEN CATASTROPHIC. APPARENTLY THIS WAS THE FIRST YEAR FOR A NEW BRAKING SYSTEM REFERRED TO A "DRIVE BY WIRE". EURO MOTORCARS IN MD INFORMED ME THAT BECAUSE MERCEDES HAD SO MUCH…
Nov 12, 2013 · 71,525 miles
Fuel system, gasoline › Storage › Tank assembly
NO INCIDENT. WAS DRIVING AND AS I PULLED INTO MY DRIVEWAY, HEARD BUMPING SOUND FROM CAR. ASKED MERCEDES WHAT IT WAS, THEY SAID LOOSE BAFFLE IN GAS TANK. SOUNDS LIKE MANUFACTURING DEFECT. CHECKED ONLINE AND FOUND MANY OTHERS WITH SAME PROBLEM. IT IS A COSTLY REPAIR JUST OUTSIDE OF WARRANTY PERIOD. *TR
Apr 18, 2008 · 43,300 miles
Suspension
I PURCHASED A 2003 MERCEDES BENZ SL500 IN DECEMBER OF 2003. AS OF TODAY 8 NOVEMBER 2005, THE SUSPENSION APPARENTLY CAN NOT BE REPAIRED. THE CAR HAS BEING TAKEN BACK TO THE DEALER FOR THE EIGHT (8TH) TIME TO REPAIR THE SUSPENSION. IT IS CURRENTLY ALEXANDRIA VIRGINIA, MERCEDES BENZ AS OF NOVEMBER 9TH, 2005. WHILE DRIVING THE VEHICLE HOME FROM A DINNER ENGAGEMENT, LATE OCTOBER 2005, ONE OF THE FRONT HYDRAULIC SHOCK DROPPED AND THE VEHICLE LITERALLY CHANGED LANES. FORTUNATELY, NO CARS WERE BESIDE ME AT THE TIME. I AM WRITING TO THE NHTSA TO GET THEIR ASSISTANCE IN DETERMINING THE FEASIBILITY OF DRIVING THIS VEHICLE WITH ITS UNPREDICTABLE LEVEL OF SAFETY. I AM APPALLED BY MERCEDES BENZ LACK OF…
Oct 23, 2005 · 23,000 miles
Electrical system
I TURNED KEY AND CAR DID NOT START. I ENDED UP GETTING STUCK EITHER AT HOME OR IN A SHOPPING CENTER. CAR HAD TO BE PUT ON A FLAT BED. DEALER RELPACED PARTS EACH TIME , BUT COULD NOT FIND THE CAUSE OF THE PROBLEM.
Apr 30, 2005
Engine and engine cooling › Exhaust systemCrash
2003 MERCEDES BENZ SLK 320 EXPERIENCING PROBLEMS WITH HESITATION WHEN THE ACCELERATOR IS DEPRESSED.*MR ON ONE OCCASIONS WHEN THE CONSUMER ATTEMPTED TO APPLY THE GAS THE VEHICLE DID NOT MOVE FOR A FEW SECONDS AND THEN ALL OF A SUDDEN THE VEHICLE LURCHED FORWARD AND THE CONSUMER HIT ANOTHER VEHICLE. THE THERE WAS ALSO A RATTLE IN THE EXHAUST. *JB
Mar 1, 2005
Power train › Automatic transmission
THE VEHICLE (2003 MB SLK320) WAS PURCHASED ON 4/14/2004 IN AZ AND BEGAN NOTICING PROBLEMS ON THE DRIVE BACK TO NM. THE MOST SIGNIFICANT SAFETY PROBLEM INVOLVES THE TRANSMISSION, WHICH HAS BEEN SERVICED BY THE MANUFACTURER 8 TIMES WITHOUT RESOLUTION. THE VEHICLE SLIPS IN AND OUT OF GEAR AT HIGHWAY SPEEDS. THE VEHICLE HAS SPENT A TOTAL OF OVER 68 DAYS IN THE SHOP FOR UNSATISFACTORY REPAIRS IN A ONE-YEAR PERIOD. TO THIS DATE, THE MANUFACTURER HAS BEEN UNCOOPERATIVE IN RESOLVING THESE PROBLEMS FORCING ME TO SEEK LEGAL SERVICES.*AK
Jun 25, 2003 · 9,132 miles
Service brakes, hydraulic
HYDRAULIC BRAKE FAILURE, TOTALLY UNEXPECTED. CAR IS A MARCEDES BENZ SL500, 2003. ONLY 8,500 K. ON 6-24-04, MB ISSUED A SAFETY BULLETIN (NHTSA CAMPAIGN ID NO. 04V296000)MB HAS NOT NOTIFIED OWNERS LIKE ME. I RUN A 4-WAY STOP SIGN AND A LARGE PICK-UP TRUCK WAS WITHIN 1 OR 2 FEET FROM HITTING ME ON THE DRIVERS' SIDE. IWAS ABLE TO STOP THE CAR ABOUT 50 YARDS AFTER THE STOP SIGN. MESSAGGE --IN RED LETTERS IN THE DASHBOARD-- WICH SAID "REDUCED BRAKE EFFECT. VISIT WORKSHOP".. I WAS NOT INJURED PHYSICALLY, BUT THIS WAS A NEAR DEATH EXPERIENCE. THIS HAPPENED ON 7-26-04. THE DEALER HAS PRACTICALLY CONFICATED THE CAR AND REFUSES TO SAY MUCH. MB SENT A TECHNICIAN FROM HEADQUARTERS TO CHECK THE CAR BUT…
Jul 26, 2004 · 8,000 miles
Structure › Body › Door
IN THE RIGHT DOOR PANEL THERE IS A GLUE THAT SEALS THE PANELS TOGETHER. THIS GLUE GIVES OFF TOXIC FUMES. CONSUMER'S WIFE IS CURRENTLY SEEING A NEUROLOGIST FOR PROBLEMS SUFFERED FROM INHALING THE FUMES. THE MANUFACTURER AND THE DEALER HAVE BEEN NOTIFIED.*AK
Sep 18, 2002 · 14,000 miles

Owner complaints are submitted to NHTSA by the public and are not verified. Shown as filed (NHTSA removes personal details); long reports are shortened.

NHTSA defect investigations

AIR SUSPENSION SYSTEM FAILUREClosed
THE SUBJECT S-CLASS VEHICLES CONTAIN A COMPRESSED AIR SUSPENSION SYSTEM THAT USES AIR STRUTS ON EACH OF THE FOUR WHEELS IN LIEU OF TRADITIONAL SPRINGS AND SHOCK ABSORBERS.THESE AIR STRUTS USE COMPRESSED AIR TO SUPPORT THE WEIGHT OF THE VEHICLE AND CONTROL RIDE HEIGHT.IN THE EVENT OF THE LOSS OF AIR FROM THE SYSTEM, AN ALERT WILL FLASH ON THE INSTRUMENT CLUSTER WARNING THE DRIVER TO EITHER DRIVE CAREFULLY OR TO STOP THE VEHICLE.THE VEHICLE RIDE HEIGHT CAN BE REDUCED BY AS MUCH AS 105 MM BELOW NORMAL RIDE HEIGHT BEFORE THE FULL LOAD OF THE VEHICLE FOR THAT WHEEL COMES TO REST ON A STEEL ROD, WITH A RUBBER STOP ON THE END, LOCATED IN THE SHOCK ABSORBER.THIS REST-STOP CONDITION IS DESIGNED SUCH THAT THERE IS NO IMPACT ON VEHICLE CONTROL.MERCEDES-BENZ (MBUSA) SUPPLIED VIDEO SHOWING A VEHICLE IN THIS CONDITION OPERATING UNDER SEVERAL DIFFERENT SITUATIONS INCLUDING EVASIVE MANEUVERS…
PE07042 · opened Aug 14, 2007 · closed Nov 20, 2007