Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
Limited mileage data: 2 of 2 reports include usable mileage. There isn’t enough coverage to show a useful chart.
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
Power Train. Review the 2 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Vehicle Speed Control. Review the 1 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
0 crash reports0 fire reports0 injury reports
What owners actually said
2 reports
23,000 miles · May 28, 2013
Power TrainVehicle Speed Control
THE CAR WENT INTO "LIMP HOME MODE" TWICE WHILE I WAS DRIVING DURING THE PAST FEW MONTHS. THE SECOND TIME IT HAPPENED ON THE HIGH WAY: GEARSHIFTS NO LONGER POSSIBLE AND THE CAR WAS GOING ABOUT 20 MILES PER HOUR. IT WAS PRODUCING VERY LOUD NOISE AND SCARY. A COLLISION COULD HAVE HAPPENED. AFTER SOME RESEARCH ONLINE AND TALKING TO …
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THE CAR WENT INTO "LIMP HOME MODE" TWICE WHILE I WAS DRIVING DURING THE PAST FEW MONTHS. THE SECOND TIME IT HAPPENED ON THE HIGH WAY: GEARSHIFTS NO LONGER POSSIBLE AND THE CAR WAS GOING ABOUT 20 MILES PER HOUR. IT WAS PRODUCING VERY LOUD NOISE AND SCARY. A COLLISION COULD HAVE HAPPENED. AFTER SOME RESEARCH ONLINE AND TALKING TO MY MECHANIC, MERCEDES-BENZ'S 722.9 TRANSMISSION IS A KNOWN AND WIDESPREAD PROBLEM. MY MECHANIC HAD TO REPLACE THE TRANSMISSION VALVE BODY. ACCORDING TO MY RESEARCH ONLINE AND WHAT MY MECHANIC TOLD ME, MOST MERCEDES BETWEEN 2006 AND 2010 HAD THIS PROBLEM. THERE SHOULD HAVE BEEN A RECALL FOR THIS. *TR
NHTSA ODI #10513955
43,202 miles · Mar 21, 2012
Power Train
THE TRANSMISSION LOCKS UP INTERMITTENTLY & WON'T UP SHIFT. THE TRANSMISSION WILL SUDDENLY GO INTO LOW GEAR WHILE DRIVING ON THE HIGHWAY. THIS IS A VERY DANGEROUS SITUATION AND MERCEDES-BENZ SAYS THEY DON'T HAVE A PROBLEM WITH THE TRANSMISSION. A INDEPENDENT MERCEDES-BENZ REPAIR SHOP SAID THIS IS A COMMON PROBLEM THAT ALL THE …
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THE TRANSMISSION LOCKS UP INTERMITTENTLY & WON'T UP SHIFT. THE TRANSMISSION WILL SUDDENLY GO INTO LOW GEAR WHILE DRIVING ON THE HIGHWAY. THIS IS A VERY DANGEROUS SITUATION AND MERCEDES-BENZ SAYS THEY DON'T HAVE A PROBLEM WITH THE TRANSMISSION. A INDEPENDENT MERCEDES-BENZ REPAIR SHOP SAID THIS IS A COMMON PROBLEM THAT ALL THE 7 SPEED TRANSMISSIONS ARE DOING. MERCEDES-BENZ WILL NOT PAY FOR THE REPAIR AND THEY SAY THEY WON'T SELL THE INTERNAL TRANSMISSION PARTS TO INDEPENDENT SERVICE PROVIDERS. THEY FORCE THE CUSTOMER TO GO TO THEIR AUTHORIZED DEALER AND PAY FOR THE REPAIR. THIS IS WRONG! *JS
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 & remedy
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.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
0
No exact-year investigations in this snapshot.
2006 Mercedes Benz Slk Problems, Complaints & Recalls | Skip That Year
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