2006 Mercedes-Benz Slk Problems
Owner-reported complaints filed with NHTSA, grouped by component
Data refreshed
What this page shows
Everything below is an owner-reported complaint submitted to NHTSA about the 2006 Mercedes-Benz Slk, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Reports by component
Ranked by how many owner reports name each component category
- Powertrain (other)266.7%
- Driver assistance133.3%
Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.
Each component in detail
What the reports in each category say, in the owners' own words
Powertrain (other)
Powertrain reports that are not specifically the engine or transmission — driveshafts, axles, transfer cases and differentials.
From owner reports, verbatim
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
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
Too few reports in this category for a page of its own — they appear in the full complaint list.
Driver assistance
Reports naming forward-collision avoidance, lane keeping, back-over prevention, cruise control and related electronic driver-assistance systems.
From owner reports, verbatim
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
Too few reports in this category for a page of its own — they appear in the full complaint list.
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Elsewhere on this vehicle
Data sources
- NHTSA Office of Defects Investigation — owner-reported complaints and the components recorded on them
Data on this page last refreshed .