Problems · NHTSA complaints
2003 Mercedes-Benz G-Class problems
Owners filed 13 complaints about the 2003 Mercedes-Benz G-Class with NHTSA between Jan 2003 and Sep 2015. The most-cited component is service brakes, hydraulic (3).
Complaints
13
Filed with NHTSA
Crashes
0
Reported by owners
Fires
0
Reported by owners
Injuries
2
People reported injured
Deaths
0
Reported to NHTSA
Complaints by component
One complaint can cite several components
- Service brakes, hydraulic3
- Structure2
- Steering2
- Service brakes1
- Seats1
- Engine and engine cooling1
- Tires1
- Other / unknown2
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
Data from NHTSA Complaints API · synced Nov 12, 2026NHTSA vehicle page
When complaints were filed
Does it get worse with age? Complaints per calendar year filed
7
1
2
1
0
1
0
0
0
0
0
0
1
View as table
| Model year | Complaints filed per calendar year |
|---|---|
| 2003 | 7 |
| 2004 | 1 |
| 2005 | 2 |
| 2006 | 1 |
| 2007 | 0 |
| 2008 | 1 |
| 2009 | 0 |
| 2010 | 0 |
| 2011 | 0 |
| 2012 | 0 |
| 2013 | 0 |
| 2014 | 0 |
| 2015 | 1 |
Mileage at failure isn’t a structured field in NHTSA complaint data, so we don’t chart it. Some owners mention it in their reports below.
Top problems in owners’ words
Verbatim from NHTSA complaints, newest first
Service brakes, hydraulic
3 reports
“DT: THE BRAKES HAVE BEEN BAD FROM THE TIME SHE PURCHASED THE CAR. THE FIRST TIME WAS AT 17,000 MILES UNDER WARRANTY. THE SECOND TIME WAS @3,4000 MILES, BUT SHE HAS TO PAY FOR REPAIRS. *AK”
Structure
2 reports
“DT*: THE CONTACT STATED ONE OF CONTACT'S CLIENTS SUFFERED 3RD DEGREE BURNS ON THE CALF OF THE LEG WHILE EXITING THE VEHICLE FROM A STAINLESS STEEL PORTION OF THE RUNNING BOARD. THE RUNNING BOARD WAS VERY HOT FROM THE SUN SHINING INSIDE THE VEHICLE RESULTING IN THE CLIENT'S LEG BEING BURNED. THE DEALERSHIP WAS NOTIFIED.”
Steering
2 reports
“WHILE DRIVING, THE STEERING WHEEL STARTED SHAKING UNCONTROLLABLY. THE CONSUMER WAS ABLE TO MAINTAIN CONTROL OF THE VEHICLE AND DROVE IT TO THE DEALER FOR INSPECTION. THE MECHANIC INFORMED THE CONSUMER THAT THE STEERING RACK PINION SHAFT NEEDED REPLACEMENT. THE CONSUMER INFORMED THE MECHANIC THAT THE THIS PROBLEM HAS OCCURRED MORE THAN ONCE AND HAS NOT BEEN RESOLVED. PLEASE FILL IN ADDITIONAL INFORMATION. *JB”
Service brakes
1 report
“I PURCHASED THIS CAR IN NOVEMBER OF 2012 AS THE 2ND OWNER. IT ONLY HAD 60,000 MILES ON IT AND SEEMED LIKE A GREAT CAR. ONE DAY I WAS DRIVING ON THE FREEWAY APPROXIMATELY 65MPH, WHEN I HAD TO BRAKE SLIGHTLY AND THE BRAKE PEDAL FELT KINDA MUSHY AND MY BRAKING WAS SLOWER THAN NORMAL. NEXT THING I SAW WAS MY DASHBOARD HAD A RED MESSAGE ON IT (BRAKE REDUCED BRAKING EFFORT) AHHHHHH I WAS FREAKED OUT AND GOT OFF THE FREEWAY AND PULLED INTO A GAS STATION. I CALLED A TOW TRUCK (I WAS AFRAID MY BRAKES WERE NOT GOING TO WORK AND I DIDN'T WANT TO PUT MY YOUNG SON OR ANYONE ELSE IN DANGER. THE BENZ DEALERSHIP DID A FULL INSPECTION AND FOUND THAT THE SBC (SENSOTRONIC BRAKE CONTROL SYSTEM) NEEDED TO BE REPLACED. THE ALSO STATED THAT MB HAD A RECALL ON THIS PARTICULAR PART, HOWEVER THAT I MISSED THE THE FRAME TO GET IT REPLACED. I CALLED THE MB CORPORATION AND SPOKE TO SEVERAL SERVICE REPS AND THEY ALL TOLD ME I SHOULD HAVE GOTTEN IT REPLACED WITHIN THE RECALL TIME FRAME OF 10 YEARS. I EXPLAINED HOW COULD I HAVE KNOWN THIS WHEN I PURCHASED THE CAR AND I WOULD LIKE FOR MB TO REPLACE MY SBC UNIT OR AT LEAST GIVE ME A DISCOUNT. ANYWAY, AFTER 3 MONTHS OF CALLING AND RECEIVING NO…”
Seats
1 report
“BURNT HOLE FROM SEAT WARMER ON DRIVER'S SEAT LEFT SIDE. BURNT RIGHT THROUGH COAT AND JEANS. *TR”
Engine and engine cooling
1 report
“DT: CONSUMER SMELLS A GAS ODOR IN THE CAR. SHE HAS HAD THIS SAME PROBLEM SINCE SHE BOUGHT THE CAR.*AK”
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 12, 2026
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.