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.
The worst 2006 Mercedes Benz SLK problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
- Transmission2
- Acceleration1
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Transmission2
- Acceleration1
Recalls 1
Electrical system
- What is wrong
- 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.
- Risk
- 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.
Recall number 08V303000 · Recall details
Technical service bulletins for the 2006 Mercedes Benz SLK 5
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Mercedes-benz: there are electrical production quality issues that cause the air bag warning light to...
- Mercedes-benz: shock absorber procedure
- Mercedes: corrosion protection coatings for brake components and hardware may be damaged and or stripped...
- Mercedes benz: model 171.454, 456 (2005-2008) slk class; 204.054, 056, 081 (2008) c class; 211.022, 056,...
- Check engine light on / fault codes FC1200 / FC1208 stored in me-sfi control unit
What 2006 Mercedes Benz SLK owners say
Most recent owner complaints, unedited.
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!
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Questions about the 2006 Mercedes Benz SLK
Is the 2006 Mercedes Benz SLK reliable?
Owners have filed 2 complaints about the 2006 Mercedes Benz SLK, fewer than a typical SLK model year.
What is the most common problem with the 2006 Mercedes Benz SLK?
Transmission and drivetrain, with 2 complaints. Next is acceleration (1).
How many recalls does the 2006 Mercedes Benz SLK have?
1 recall, covering electrical system.
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