Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
30–25K
625–50K
850–75K
675–100K
4100–150K
1150K+
28 reports with mileage · 3 unknown
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.
Exterior Lighting. Review the 10 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Electronic Stability Control (esc). Review the 7 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Visibility. Review the 6 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
THE INTERIOR REAR VIEW MIRROR IN MY 2001 MERCEDES SLK230 (R170 MODEL) IS AN SELF-DIMMING MIRROR THAT HAS NO MANUAL BACKUP. THE MIRROR CONTAINED A FLUID WHICH LEAKED OUT, CAUSING THE SELF-DIMMING FEATURE TO FAIL. SO BASICALLY, I'M BLINDED BY APPROACHING HEADLIGHTS WHENEVER I DRIVE AT NIGHT. THE ONLY FIX IS TO TURN THE MIRROR AW…
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THE INTERIOR REAR VIEW MIRROR IN MY 2001 MERCEDES SLK230 (R170 MODEL) IS AN SELF-DIMMING MIRROR THAT HAS NO MANUAL BACKUP. THE MIRROR CONTAINED A FLUID WHICH LEAKED OUT, CAUSING THE SELF-DIMMING FEATURE TO FAIL. SO BASICALLY, I'M BLINDED BY APPROACHING HEADLIGHTS WHENEVER I DRIVE AT NIGHT. THE ONLY FIX IS TO TURN THE MIRROR AWAY AND LOSE MY REAR VIEW (WHICH AFTER ALL IS THE ENTIRE PURPOSE OF THE REAR VIEW MIRROR!) I RESEARCHED ONLINE AND THERE ARE HUNDREDS OF DOCUMENTED CASES OF THESE MIRRORS FAILING IN VARIOUS MAKES AND MODELS. I CONTACTED THE OEM MIRROR MAKER AND THEIR ONLY SUGGESTION WAS TO HAVE MY DEALER INSTALL A NEW MIRROR AT A COST OF $300-400. THAT IS UNACCEPTABLE. *TR
NHTSA ODI #10365619
54,000 miles · Jan 6, 2009
Visibility
THE INSIDE REAR VIEW MIRROR IN MY 2001 MERCEDES-BENZ SLK 230 (R170 MODEL) IS A SELF-DIMMING MIRROR. THE MIRROR CONTAINS A FLUID WHICH IS LEAKING OUT CAUSING THE SELF-DIMMING MIRROR TO FAIL TO DIM AGAINST REAR APPROACHING HEADLIGHTS, RESULTING IN THE DRIVER TO EITHER BE BLINDED OR TO HAVE TO TURN THE MIRROR AWAY. THERE ARE MANY D…
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THE INSIDE REAR VIEW MIRROR IN MY 2001 MERCEDES-BENZ SLK 230 (R170 MODEL) IS A SELF-DIMMING MIRROR. THE MIRROR CONTAINS A FLUID WHICH IS LEAKING OUT CAUSING THE SELF-DIMMING MIRROR TO FAIL TO DIM AGAINST REAR APPROACHING HEADLIGHTS, RESULTING IN THE DRIVER TO EITHER BE BLINDED OR TO HAVE TO TURN THE MIRROR AWAY. THERE ARE MANY DOCUMENTED CASES OF THESE MIRRORS FAILING IN VARIOUS MAKES AND MODELS AS A RESULT OF THE INTERNAL FLUID LEAKING. THE OEM MIRROR MAKER HAS BEEN CONTACTED, AND STEVE CHENLO, FROM MAGNA DONNELLY (HIS DIRECT LINE IS 616-786-7495), REFUSED TO TAKE OWNERSHIP OF THE PROBLEM. HIS ADVICE WAS TO PURCHASE ANOTHER MIRROR AT APPROXIMATELY $200, AND PAY FOR INSTALLATION, WHICH WAS APPROXIMATELY $100 FROM THE DEALERSHIP. ABOUT A YEAR AGO, MAGNA DONNELLY WAS REPLACING THESE MIRRORS FOR FREE BUT STOPPED FOR UNKNOWN REASONS. *TR
NHTSA ODI #10254058
90,000 miles · Jan 6, 2009
Visibility
THE SELF DIMMING MIRROR IS DEFECTIVE AND PERMANENTLY INOPERABLE. UPON RESEARCH, IT IS A CONSTANT, COMMON, AND ACTUALLY SOMEWHAT PREDICTABLE AS FAR AS THIS PROBLEM OCCURRING. MANY HAVE PAID OUT OF POCKET TO REPLACE THEM RIGHT AWAY AS THERE IS NO MANUAL OPERATION OF THE REARVIEW MIRROR. AS A RESULT, YOU MUST RELY ON SIDEVIEW MIRRO…
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THE SELF DIMMING MIRROR IS DEFECTIVE AND PERMANENTLY INOPERABLE. UPON RESEARCH, IT IS A CONSTANT, COMMON, AND ACTUALLY SOMEWHAT PREDICTABLE AS FAR AS THIS PROBLEM OCCURRING. MANY HAVE PAID OUT OF POCKET TO REPLACE THEM RIGHT AWAY AS THERE IS NO MANUAL OPERATION OF THE REARVIEW MIRROR. AS A RESULT, YOU MUST RELY ON SIDEVIEW MIRRORS ONLY AND A FULL OVER 90 DEGREE HEAD TURN WHICH IS IN ITSELF A SAFETY HAZARD BOTH PHYSICALLY FOR SOME INDIVIDUALS AND A DRIVING HAZARD AS YOUR ATTENTION IS COMPLETELY DIVERTED FROM THE ROAD. *TR
NHTSA ODI #10253974
80,000 miles · Dec 4, 2008
Visibility
VEHICLE TYPE IS 2001 MERCEDES BENZ SLK320 (R170 MODEL). THE INSIDE REAR VIEW MIRROR IS AN ELECTROCHROMIC SELF DIMMING MIRROR THAT HAS NO MANUAL BACKUP. THE MIRROR FAILED, LOSING ITS ABILITY TO PROVIDE DIMMING AGAINST REAR APPROACHING HEADLIGHTS CAUSING ME TO EITHER BE BLINDED OR TO HAVE TO TURN THE MIRROR UP AND HAVE NO REAR VIE…
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VEHICLE TYPE IS 2001 MERCEDES BENZ SLK320 (R170 MODEL). THE INSIDE REAR VIEW MIRROR IS AN ELECTROCHROMIC SELF DIMMING MIRROR THAT HAS NO MANUAL BACKUP. THE MIRROR FAILED, LOSING ITS ABILITY TO PROVIDE DIMMING AGAINST REAR APPROACHING HEADLIGHTS CAUSING ME TO EITHER BE BLINDED OR TO HAVE TO TURN THE MIRROR UP AND HAVE NO REAR VIEW CAPABILITY. *TR
NHTSA ODI #10250789
34,000 miles · Nov 5, 2007
Electronic Stability Control (esc)Exterior LightingFuel System, Gasoline
I HAVE LESS THAN 50K MILES AND HAD TO REPLACE THE MASS AIR FLOW SENSOR TWICE AND NOW CHECK ENGINE LIGHT IS ON AGAIN FOR THE SAME SERVICE NEEDED. I HAVE PAID OUT OF POCKET NOT TO MENTION THE INCONVENIENCE OF HAVING IT IN THE SHOP SO MANY TIMES ALSO HAVE HAD TO REPLACE TRANSMISSION SENSORS AND TAIL LIGHT, WHICH MERCEDES DID NOT R…
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I HAVE LESS THAN 50K MILES AND HAD TO REPLACE THE MASS AIR FLOW SENSOR TWICE AND NOW CHECK ENGINE LIGHT IS ON AGAIN FOR THE SAME SERVICE NEEDED. I HAVE PAID OUT OF POCKET NOT TO MENTION THE INCONVENIENCE OF HAVING IT IN THE SHOP SO MANY TIMES ALSO HAVE HAD TO REPLACE TRANSMISSION SENSORS AND TAIL LIGHT, WHICH MERCEDES DID NOT REIMBURSE FOR ORIGINAL CHARGE, JUST RE- REPLACED. NOW PROBLEMS HAPPENING WITH REAR MIRROR. THIS IS RIDICULOUS MERCEDES SHOULD STAND BY THERE PRODUCT THAT IS SUPPOSED TO LAST FOREVER AND I HAVE HAD NOTHING BUT PROBLEMS. *TR
NHTSA ODI #10207936
39,000 miles · May 26, 2005
Visibility
THE POWER WINDOW WILL ONLY GO DOWN HALF WAY, DO TO A LOOSE SCREW. *JB *SB *NM
NHTSA ODI #10118815
Official recalls
0
No recalls in this snapshot.
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
1
PE05051 · Brake Lamp Failure
Opened Sep 22, 2005 · Closed Dec 2, 2005
Status: closed (inferred from source dates) · Exterior Lighting:brake Lights
IN ITS LETTER DATED OCTOBER 28, 2005, MERCEDES-BENZ USA STATED THAT IT WOULD CONDUCT A SAFETY RECALL TO REMEDY DEFECTIVE BRAKE LAMP ASSEMBLIES IN MODEL YEAR 1998 THROUGH 2004 MERCEDES BENZ SLK VEHICLES.THE BASE OF THE BRAKE LAMP SOCKET CAN BE SUBJECT TO THERMAL DEFORMATION OVER TIME.THIS DEFORMATION CAN CAUSE MOVEMENT IN THE SOCKET-TO-BULB CONNECTION, WHICH MAY LEAD TO A LOOSENING OF THE ELECTRICAL CONTACTS IN THE SOCKET, AND FAILURE OF THE BULB TO ILLUMINATE.ALL REAR LAMP MODULES (WHICH CONTAIN BRAKE, TURN SIGNAL, TAIL AND BACKUP LAMPS) WILL BE REPLACED WITH REDESIGNED REAR LAMP MODULES WITH A MORE HEAT RESISTANT MATERIAL AND ENHANCED SOCKET HOLDER DESIGN TO WITHSTAND THE HEAT INSIDE THE REAR LAMP MODULE.SEE NHTSA RECALL NO. 05V505 FOR MORE INFORMATION.
2001 Mercedes Benz SLK230 Problems, Complaints & Recalls | Skip That Year