2004 Mercedes Benz SL CLASS: complaints, problems and recalls
Explore the records behind recurring owner reports.
Key facts
3 owner complaints analyzed
3 distinct recall campaigns
1,000 mi median reported failure mileage
Scope: 2004 model year. Data snapshot: . 1 complaints include usable failure mileage.
Most common problems
Service Brakes, Hydraulic is the most frequently named component, appearing in 2 of 3 complaints (66.7%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Braking behavior | 1 | 33.3% |
| Fuel system concerns | 1 | 33.3% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Service Brakes, Hydraulic | 2 |
| Equipment:Appliance:Air Conditioner | 1 |
| Exterior Lighting:Headlights:High/Low Beam Dimmer Switch | 1 |
| Structure:Frame And Members:Underbody Shields | 1 |
| Suspension | 1 |
Service Brakes, Hydraulic: 2; Equipment:Appliance:Air Conditioner: 1; Exterior Lighting:Headlights:High/Low Beam Dimmer Switch: 1; Structure:Frame And Members:Underbody Shields: 1; Suspension: 1
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 1 |
| 25,000 to 49,999 | 0 |
| 50,000 to 74,999 | 0 |
| 75,000 to 99,999 | 0 |
| 100,000 to 149,999 | 0 |
| 150,000 and above | 0 |
Under 25,000: 1; 25,000 to 49,999: 0; 50,000 to 74,999: 0; 75,000 to 99,999: 0; 100,000 to 149,999: 0; 150,000 and above: 0
Under 25,000 miles has the most reports with usable mileage (1). 2 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2004 | 1 |
| 2005 | 1 |
| 2012 | 1 |
2004: 1; 2005: 1; 2012: 1
Pattern summary
Service Brakes, Hydraulic leads the component reports. Braking behavior appears in 1 complaint narratives. Fuel system concerns appears in 1 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Examples from the source records
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 10108957 · 2004-12-09 (December 9, 2004)
RECALL CAMPAIGN: RECALL 2004 050014 NOTICE RECEIVED FOR DEFECTIVE SENSOTRONIC BRAKE. *BF THE SERVICE DEALER COMPUTERS DISENGAGED THE CONSUMERS BRAKING SYSTEM, THEREFORE THE VEHICLE WAS INOPERABLE. 2004 MERCEDES BENZ SL500 ROADSTER. *SC *JB
Owner-reported narrative. Look up ODI 10108957 at NHTSA ↗
Owner report 10117704 · 2005-04-11 (April 11, 2005)
WHEN TURNING ON THE AIR CONDITIONER OR ANY OTHER VEHICLE ACCESSORY THE HEADLIGHTS DIM OR THEY FLASH ON AND OFF AS IF GOING FROM HIGH BEAM TO LOW BEAM, ETC. TECHNICAL SERVICE BULLETIN 040842001A. *AK
Owner-reported narrative. 1,000 miles reported. Look up ODI 10117704 at NHTSA ↗
Owner report 10442669 · 2012-01-06 (January 6, 2012)
SOMETHING CALLED AN ABC PUMP AND BLOCK HAS FAILED AND CAR DROPS DOWN ON FRAME. SPENT $3200 ON THE PUMP TO DRIVE 2 MONTHS BEFORE THEY WANT $3800 TO REPAIR THE VALVE BLOCK. BOTH TIMES THE VEHICLE DROPS AND IS DANGEROUS TO DRIVE. THIS IS IN ADDITION TO A BAFFLE COMING LOOSE IN THE GAS TANK THAT HAS METAL BASHING METAL INSIDE THE GAS CELL. *TR
Owner-reported narrative. Look up ODI 10442669 at NHTSA ↗
Recall history
3 distinct campaigns affect this selection. Announcement dates below are different from vehicle model years. A campaign may cover multiple years.
04V296000 · Service Brakes, Hydraulic
Reported: 2004-06-22 (June 22, 2004)
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.
Consequence: 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.
Remedy: 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.
NHTSA campaign record ↗05V133000 · Service Brakes, Hydraulic
Reported: 2005-04-01 (April 1, 2005)
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.
Consequence: 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.
Remedy: 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.
NHTSA campaign record ↗08V303000 · Electrical System
Reported: 2008-07-07 (July 7, 2008)
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.
Consequence: 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.
Remedy: 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.
NHTSA campaign record ↗