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U.S. public vehicle records

Mercedes Benz SL500 problems and owner complaints

Explore the records behind recurring owner reports.

Key facts

225 owner complaints analyzed

1 distinct recall campaigns

65,000 mi median reported failure mileage

Scope: 1992 to 2009 model years. Data snapshot: . 189 complaints include usable failure mileage.

Owner-reported patterns

Most common problems

Suspension is the most frequently named component, appearing in 61 of 225 complaints (27.1%). A complaint can name multiple components.

Recurring terms in complaint narratives
TopicMatching reportsShare of complaints
Braking behavior4419.6%
Electrical and battery issues4419.6%
Fuel system concerns2912.9%
Steering behavior125.3%
Engine operation114.9%
Transmission and shifting83.6%

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.

Suspension
61
Electrical System
45
Service Brakes
29
Fuel/Propulsion System
18
Fuel System, Gasoline
14
Power Train
12
Service Brakes, Hydraulic
12
Air Bags
10
Component breakdown data
CategoryCount
Suspension61
Electrical System45
Service Brakes29
Fuel/Propulsion System18
Fuel System, Gasoline14
Power Train12
Service Brakes, Hydraulic12
Air Bags10

Suspension: 61; Electrical System: 45; Service Brakes: 29; Fuel/Propulsion System: 18; Fuel System, Gasoline: 14; Power Train: 12; Service Brakes, Hydraulic: 12; Air Bags: 10

Reported problems by failure mileage

Complaint counts in mileage bands. These are not failure rates per vehicle or mile.

Under 25,000
23
25,000 to 49,999
32
50,000 to 74,999
56
75,000 to 99,999
36
100,000 to 149,999
34
150,000 and above
8
Reported problems by failure mileage data
CategoryCount
Under 25,00023
25,000 to 49,99932
50,000 to 74,99956
75,000 to 99,99936
100,000 to 149,99934
150,000 and above8

Under 25,000: 23; 25,000 to 49,999: 32; 50,000 to 74,999: 56; 75,000 to 99,999: 36; 100,000 to 149,999: 34; 150,000 and above: 8

50,000 to 74,999 miles has the most reports with usable mileage (56). 36 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.

2001
1
2002
3
2003
2
2004
1
2005
2
2006
9
2007
9
2008
12
2009
4
2010
21
2011
13
2012
10
2013
14
2014
24
2015
22
2016
13
2017
15
2018
11
2019
11
2020
10
2021
3
2022
7
2023
5
2025
1
2026
2
Complaints over time data
CategoryCount
20011
20023
20032
20041
20052
20069
20079
200812
20094
201021
201113
201210
201314
201424
201522
201613
201715
201811
201911
202010
20213
20227
20235
20251
20262

2001: 1; 2002: 3; 2003: 2; 2004: 1; 2005: 2; 2006: 9; 2007: 9; 2008: 12; 2009: 4; 2010: 21; 2011: 13; 2012: 10; 2013: 14; 2014: 24; 2015: 22; 2016: 13; 2017: 15; 2018: 11; 2019: 11; 2020: 10; 2021: 3; 2022: 7; 2023: 5; 2025: 1; 2026: 2

Pattern summary

Suspension leads the component reports. Braking behavior appears in 44 complaint narratives. Electrical and battery issues appears in 44 complaint narratives. Fuel system concerns appears in 29 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.

Complaint evidence

Examples provide context, not a representative sample or a verified diagnosis.

Owner report 10242737 · 2008-09-17 (September 17, 2008)

I HAVE A 1995 SL500 MERCEDES BENZ AND THE WIRES GOING TO THE BRAKE SWITCH CAUGHT FIRE, IF I HAD NOT HAD A FIRE EXTINGUISHER THE HOLE CAR MIGHT HAVE CAUGHT FIRE ALSO I WAS NO GOING FAST WHEN THE FUMES STARTED CHOKING ME AND MY EYES BURNED. I COULD HAVE KILLED MY SELF OR SOMEONE ON THE ROAD. *TR

Owner-reported narrative. 131,000 miles reported. Look up ODI 10242737 at NHTSA ↗

Owner report 10522165 · 2013-06-27 (June 27, 2013)

WIRING INSULATION FOR LIGHTS AND POWER STEERING DETERIORATED TO THE POINT OF CAUSING MASSIVE SHORTS IN MULTIPLE SYSTEMS, DRAINING THE BATTERY AND RESULTING IN ENGINE FAILURE AT HIGHWAY SPEEDS. I MANEUVERED IN HEAVY TRAFFIC ONTO AN OFF RAMP THAT PROVIDED A SAFE EXIT FROM THE 6 LANE BELTWAY AND HAD TO BE TOWED. TURN SIGNALS, BRAKE LIGHTS, POWER STEERING, HALF OF THE INSTRUMENTS (INCLUDING SPEEDOMETER AND ODOMETER), BATTERY AND CHARGING SYSTEM ARE INOPERABLE DUE TO BARE WIRES SHORTING OUT THE WIRING HARNESSES. ESTIMATE FOR REPAIRS BEGINS WITH …

Owner-reported narrative. 137,452 miles reported. Look up ODI 10522165 at NHTSA ↗

Owner report 10216744 · 2008-02-02 (February 2, 2008)

MERCEDES SL 600 WIRING HARNESS FAILURE. ALMOST ALL OF THEM HAVE THIS AND MERCEDES WILL DO NOTHING. CAR ABRUPTLY LOOSES POWER AT HIGHWAY SPEED ENDANGERING ALL. *TR

Owner-reported narrative. 17,868 miles reported. Look up ODI 10216744 at NHTSA ↗

Owner report 10317711 · 2010-03-08 (March 8, 2010)

ELECTRICAL WIRING INSULATION IS DEGRADING ON WIRING HARNESS(S) IN ENGINE COMPARTMENT. THIS IS A POTENTIAL FIRE HAZARD WHICH COULD LEAD TO LOSS OF LIFE OR SERVE PROPERTY LOSS. I FEEL MERCEDES SHOULD PROVIDE COMPLETE REPLACEMENT OF THESE WIRING HARNESS'S ON AFFECTED MODEL SL500, YEARS 1991 THRU 1996 REGARDLESS OF THE MILEAGE. *TR

Owner-reported narrative. 100,000 miles reported. Look up ODI 10317711 at NHTSA ↗

Owner report 10458245 · 2012-05-13 (May 13, 2012)

MERCEDES BENZ ENGINEERED THEIR 1995 SL500 WITH FAULTY WIRING. I HAVE EXPERIENCED TIMES WHEN THE CAR WOULD NOT IDLE AT A STOP LIGHT. THERE HAVE BEEN TIMES WHEN I HAVE CROSSED AN INTERSECTION AND THE CAR STALLED, HAD NOT POWER AND JUST WOULD NOT RUN. THIS HAS ALMOST BEEN THE CAUSE OF MORE THAN ONE ACCIDENT. SEVERAL HOURS HAS BEEN SPENT BY MECHANICS WORKING ON THE CAR DOING RESEARCH TO DIAGNOSIS THE ISSUES. WE BECAME AWARE OF THE FAULTY WIRING THAT MERCEDES BENZ USED AND IN TURN HAS CAUSED SEVERAL COMPONENTS TO FAIL. THERE HAS BEEN $1,000.0…

Owner-reported narrative. 102,300 miles reported. Look up ODI 10458245 at NHTSA ↗

Owner report 770657 · 2002-12-09 (December 9, 2002)

FUEL LINE LEAKAGE AT FUEL PUMP-SECOND OCCURANCE. DT

Owner-reported narrative. Look up ODI 770657 at NHTSA ↗

Owner report 10513085 · 2013-05-22 (May 22, 2013)

THIS VEHICLE HAS A BIO-DEGRADABLE ENGINE WIRING HARNESS. THESE HARNESSES ARE DETERIORATING. MY VEHICLE SUDDENLY LOST ALL POWER, NO POWER STEERING, NO NOTHING ON A FREEWAY AND I WAS LUCKY THAT I WAS NOT KILLED. MERCEDES AND THE DEALERSHIPS BOTH KNOW THAT VEHICLES WITH THIS TYPE HARNESS ARE DEATH TRAPS. I WONDER HOW MANY PEOPLE HAVE ALREADY BEEN KILLED, BUT WIRING HARNESS WAS NEVER INVESTIGATED AS CAUSE OF ACCIDENT. WHY ARE YOU NOT TAKING ACTION AGAINST MERCEDES? EVERY VEHICLE STILL ON THE ROAD SHOULD BE RECALLED IMMEDIATELY IF IT HAS A BIO…

Owner-reported narrative. 103,000 miles reported. Look up ODI 10513085 at NHTSA ↗

Owner report 10966708 · 2017-03-18 (March 18, 2017)

I HAVE 1995 SL500 LAST 8 YEARS HAVING ELECTRICAL ISSUES, RELATED TO WIRING HARNESS ,MISFIRE ,STEERING PUMP,AIR PUMP AND MORE. I AM THE FIRST OWNER.ALL THE WIRES ARE DETERIORATING,I THNIK WE NEED NHTSA TO INSPECT THESE CAR MANUFACTURERS.IF MANUFACTURER INSTALLED THE FAULTY WIRING THEY SHOULD STAND UP AND OFFER REPAIRS AT THE MERCEDES DEALERS.FREE. REGARDS

Owner-reported narrative. 145,000 miles reported. Look up ODI 10966708 at NHTSA ↗

Owner report 10924326 · 2016-11-04 (November 4, 2016)

FACTORY MATERIAL DEFECT. ENGINE WIRE HARNESS INSULATION IS BREAKING DOWN AND FLAKING OFF, LEAVING EXPOSED WIRE. IGNITION IS POOR AND THREATENS TO STALL, ESPECIALLY WHEN ENGINE TEMPERATURE WARMS UP TO 85-90C. I FEAR THE ENGINE MAY FAIL OR CATCH FIRE DURING A DRIVE AND CAUSE AN ACCIDENT. THERE IS ALSO A SHORT IN THE AUDIO SYSTEM. THE VEHICLE IS BEAUTIFUL. IT IS A SHAME TO HAVE IT SITTING SINCE 2008. *TR

Owner-reported narrative. 90,000 miles reported. Look up ODI 10924326 at NHTSA ↗

Owner report 10172352 · 2006-11-01 (November 1, 2006)

CAR STALLED IN TRAFFIC DUE TO WIRING HARNESS FAILURE. STARTED SMALL FIRE THAT WAS EXTINGUISHED BEFORE ANY SIGNIFICANT DAMAGE. I REPLACED THE WIRING HARNESS AND CLEANED ENGINE COMPARTMENT. WIRING HARNESS INSULATION HAD TURNED TO POWDER IN MANY LOCATIONS SHORTING FUEL INJECTORS, MASS SENSOR AND CAM MAGNETS. *NM

Owner-reported narrative. 119,750 miles reported. Look up ODI 10172352 at NHTSA ↗

Owner report 10319678 · 2010-03-15 (March 15, 2010)

TL*THE CONTACT OWNS A 2001 MERCEDES SL500. THE CONTACT WAS DRIVING APPROXIMATELY 40 MPH MERGING INTO TRAFFIC. WHILE THE ACCELERATOR PEDAL WAS ENGAGED, THE GEAR AUTOMATICALLY SHIFTED INTO NEUTRAL. THE VEHICLE CONTINUED TO FUNCTION NORMALLY. THE FAILURE MILEAGE WAS 86,400. THE CURRENT MILEAGE WAS 86,700. THE VIN WAS UNAVAILABLE.

Owner-reported narrative. 86,400 miles reported. Look up ODI 10319678 at NHTSA ↗

Owner report 11456885 · 2022-03-15 (March 15, 2022)

The 2003 SL500 with seemingly no instigating incident or event had the gas tank baffle come apart due to the poor and faulty design of this component. This baffle now is loose and floats on the gas in the gas tank, banging around when there is acceleration or deceleration, even turning sometimes causes it to bang around. Speed bumps are another source of loud banging from the baffle bumping into the sides of the tank. The issue with 2003 SL500's is ubiquitous, it is not a question of what percentage of them will experience as it appears it will…

Owner-reported narrative. Look up ODI 11456885 at NHTSA ↗

Compare model years

Recalls by model year

All campaigns in the snapshot affecting each model year, including recalls announced years later.

Recall campaigns

Shared campaigns appear once in each affected model year.

1993
0
1994
0
1995
0
1996
0
1997
1
1998
0
1999
0
2000
0
2001
0
2003
0
2004
0
2005
0
2006
0
2009
0
Recall campaigns data
CategoryCount
19930
19940
19950
19960
19971
19980
19990
20000
20010
20030
20040
20050
20060
20090

1993: 0; 1994: 0; 1995: 0; 1996: 0; 1997: 1; 1998: 0; 1999: 0; 2000: 0; 2001: 0; 2003: 0; 2004: 0; 2005: 0; 2006: 0; 2009: 0

Year-by-year records

Mercedes Benz SL500 model-year comparison
Model yearComplaintsRecallsChange in recalls
199220Not available
1993600
1994800
19952200
1996600
199791+1
199860-1
1999200
2000200
2001300
2003800Not available
20044500
20051900
20061300
200920Not available