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1999 Mercedes Benz SLK230

Owner reports · Recalls · Investigations

Similar to other model years

Owner complaints for the 1999 Mercedes Benz SLK230 do not stand out strongly from the model-year median of 31.

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How this year compares

Owner complaints by model year

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Counts vary with age, sales and reporting. They are not failure rates.

What owners reported most

All reported categories

Tap a category to read its complaints. One report may name several components.

When problems were reported

Mileage at the reported incident

33 reports with mileage · 26 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.

  • Visibility. Review the 22 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Exterior Lighting. Review the 16 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Electrical System. Review the 14 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

2 crash reports1 fire reports2 injury reports

Visibility complaints

22 reports
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Mileage unknown · Oct 3, 2011
Visibility

REAR VIEW MIRROR STAY AT NIGHT VIEW , AND THE DRIVER MIRROR IS HALF & HALF. *TR

NHTSA ODI #10428360

95,000 miles · Sep 6, 2011
Visibility

TL* THE CONTACT OWNS A 1999 MERCEDES BENZ SLK230. WHILE THE VEHICLE WAS PARKED THE CONTACT NOTICED THERE WAS A DARK SPOT IN THE CENTER OF THE REAR VIEW MIRROR. WHENEVER LIGHT WAS SHINING ON THE MIRROR THE CONTACTS VISION WAS DISTORTED. THE VEHICLE WAS TAKEN TO THE DEALER FOR DIAGNOSTIC TESTING. THE TECHNICIAN STATED THE REAR VI…

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TL* THE CONTACT OWNS A 1999 MERCEDES BENZ SLK230. WHILE THE VEHICLE WAS PARKED THE CONTACT NOTICED THERE WAS A DARK SPOT IN THE CENTER OF THE REAR VIEW MIRROR. WHENEVER LIGHT WAS SHINING ON THE MIRROR THE CONTACTS VISION WAS DISTORTED. THE VEHICLE WAS TAKEN TO THE DEALER FOR DIAGNOSTIC TESTING. THE TECHNICIAN STATED THE REAR VIEW MIRROR HAD TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 95,000.

NHTSA ODI #10423897

78,000 miles · Oct 14, 2010
Visibility

MERCEDES BENZ 1999 SLK 230 -REAR VIEW MIRROR FAILED ,THE INSIDE REAR VIEW MIRROR IS AN ELECTROCHROMIC SELF DIMMING MIRROR THAT HAS NO MANUAL BACKUP. THE MIRRORS ARE COMPLETELY USELESS. I KNOW OF MANY DOCUMENTED CASES OF THESE MIRRORS FAILING INCLUDING MY OWN. SOME FAIL BY JUST QUITTING WORKING WHILE OTHERS LEAK THE INTERNAL FLU…

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MERCEDES BENZ 1999 SLK 230 -REAR VIEW MIRROR FAILED ,THE INSIDE REAR VIEW MIRROR IS AN ELECTROCHROMIC SELF DIMMING MIRROR THAT HAS NO MANUAL BACKUP. THE MIRRORS ARE COMPLETELY USELESS. I KNOW OF MANY DOCUMENTED CASES OF THESE MIRRORS FAILING INCLUDING MY OWN. SOME FAIL BY JUST QUITTING WORKING WHILE OTHERS LEAK THE INTERNAL FLUID. BOTH INSIDE AND DRIVER SIDE MIRRORS HAVE FAILED . THERE IS NO WAY ONE CAN SEE - THIS IS A REAL SAFETY ISSUE - MERCEDES DEALER AND MERCEDES USA SAY THEY HAVE NEVER HEARD OF SUCH A PROBLEM - DEALER SAYS IT IS NORMAL WEAR. THESES ARE MIRRORS - NOT TIRES. COMPANY THAT MADE THE MIRROR HAS BEEN AWARE OF THE PROBLEM FOR YEARS SINCE THEY OFFERED REPLACEMENTS PREVIOUS YEARS. *TR

NHTSA ODI #10360522

30,000 miles · May 27, 2010
Visibility

MY 1999 MERCEDES SLK 230 INTERIOR AND DRIVER'S SIDE MIRROR HAVE DISCOLORED TILL THEY ARE ALMOST IMPOSSIBLE TO USE. *TR

NHTSA ODI #10332507

Mileage unknown · May 2, 2010
Visibility

VEHICLE TYPE IS 1999 MERCEDES BENZ SLK230 (R170 MODEL). THE INSIDE REAR VIEW MIRROR IS AN ELECTROCHROMIC SELF DIMMING MIRROR THAT HAS NO MANUAL BACKUP. THE MIRRORS FAIL LOSING THEIR ABILITY TO PROVIDE DIMMING AGAINST REAR APPROACHING HEADLIGHTS CAUSING THE DRIVER TO EITHER BE BLINDED OR TO HAVE TO TURN THE MIRROR UP AND HAVE NO …

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VEHICLE TYPE IS 1999 MERCEDES BENZ SLK230 (R170 MODEL). THE INSIDE REAR VIEW MIRROR IS AN ELECTROCHROMIC SELF DIMMING MIRROR THAT HAS NO MANUAL BACKUP. THE MIRRORS FAIL LOSING THEIR ABILITY TO PROVIDE DIMMING AGAINST REAR APPROACHING HEADLIGHTS CAUSING THE DRIVER TO EITHER BE BLINDED OR TO HAVE TO TURN THE MIRROR UP AND HAVE NO REAR VIEW CAPABILITY. I KNOW OF MANY DOCUMENTED CASES OF THESE MIRRORS FAILING INCLUDING MY OWN. SOME FAIL BY JUST QUITTING WORKING WHILE OTHERS LEAK THE INTERNAL FLUID. *TR

NHTSA ODI #10328400

Mileage unknown · Mar 3, 2010
Visibility

THIS IS A REPORT ABOUT UNUSUAL FOGGING UP OF ALL VEHICLE WINDOWS IF THE A/C IS SWITCHED OFF WHILE DRIVING. THIS MAKES THE CAR UNDRIVEABLE WITHOUT A/C BEING ON ALL THE TIME OR HAVING TO OPEN WINDOWS DUE TO LACK OF VISIBILITY THROUGH THE WINDSHIELD. IF, FOR SOME REASON, THE A/C MALFUNCTIONS WHILE DRIVING, THIS COULD POSE A DANGERO…

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THIS IS A REPORT ABOUT UNUSUAL FOGGING UP OF ALL VEHICLE WINDOWS IF THE A/C IS SWITCHED OFF WHILE DRIVING. THIS MAKES THE CAR UNDRIVEABLE WITHOUT A/C BEING ON ALL THE TIME OR HAVING TO OPEN WINDOWS DUE TO LACK OF VISIBILITY THROUGH THE WINDSHIELD. IF, FOR SOME REASON, THE A/C MALFUNCTIONS WHILE DRIVING, THIS COULD POSE A DANGEROUS SITUATION IF PEOPLE DON'T REALIZE WHAT HAPPENED QUICKLY. THIS IS VERY SIMILAR TO WHAT HAPPENS IF ONE DRIVES WITH THE CLIMATE CONTROL ON RECYCLE INSTEAD OF ALLOWING FRESH AIR IN COLD CLIMATE. BUT IN THIS CASE, IT IS FOGGING UP REGARDLESS OF THE TEMPERATURE/HUMIDITY OUTSIDE AND EVEN WHEN THE CLIMATE CONTROL IS NOT ON RECYCLE MODE. THE CAR HAS A FRESH/RECIRC FLAP INSIDE THE DASHBOARD AUTOMATICALLY CONTROLLED BY A FLAP ACTUATOR. IF THIS PART FAILS, AS I SUSPECT IT HAS HAPPENED, THEN THE FLAP CAN GET STUCK IN RECIRC MODE WHICH NO FRESH AIR WILL EVER ENTER THE CAR WHEN WINDOWS ARE CLOSED. EVEN IF A/C IS ON TO PREVENT FOGGING, DRIVING WITH NO FRESH AIR COMING IN CAN BE DANGEROUS AS CARBON DIOXIDE BUILDS UP INSIDE FROM BREATHING LEADING TO SLEEPINESS IN THE DRIVER (WHICH IS WHY DRIVING FOR LONG WITH RECIRC AIR IS NOT RECOMMENDED). THE PROBLEM IS THAT THIS IS A SILENT MALFUNCTION, AND OTHER THAN THE FOGGING PROBLEM, THERE IS NO OTHER INDICATION. I HAVE TAKEN THIS TO THE DEALER AND THEY SAY THEY CANNOT REPRODUCE THE PROBLEM. BUT I CAN RELIABLY REPRODUCE THIS WITHIN 3 MINUTES OF DRIVING WITH A/C OFF. THERE IS NO RECOURSE LEFT FOR ME TO GET THIS PROBLEM FIXED AND DRIVING THIS WAY IF THERE IS NO FRESH AIR COMING IS DANGEROUS TO ME AND TO OTHERS ON THE ROAD. *TR

NHTSA ODI #10315993

52,000 miles · Aug 2, 2009
EquipmentVisibility

THE INSIDE REAR VIEW MIRROR IN MY 1999 MERCEDES-BENZ SLK 230 (R170 MODEL) IS AN ELECTRO CHROMIC SELF-DIMMING MIRROR THAT HAS NO MANUAL BACKUP. THE MIRROR CONTAINED A FLUID WHICH LEAKED OUT CAUSING THE SELF-DIMMING MIRROR TO FAIL TO PROVIDE DIMMING AGAINST REAR APPROACHING HEADLIGHTS RESULTING IN THE DRIVER TO EITHER BE BLINDED O…

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THE INSIDE REAR VIEW MIRROR IN MY 1999 MERCEDES-BENZ SLK 230 (R170 MODEL) IS AN ELECTRO CHROMIC SELF-DIMMING MIRROR THAT HAS NO MANUAL BACKUP. THE MIRROR CONTAINED A FLUID WHICH LEAKED OUT CAUSING THE SELF-DIMMING MIRROR TO FAIL TO PROVIDE DIMMING AGAINST REAR APPROACHING HEADLIGHTS RESULTING IN THE DRIVER TO EITHER BE BLINDED OR TO HAVE TO TURN THE MIRROR AWAY WHICH GREATLY ELIMINATES REAR VIEW CAPABILITY IN THE INTERIOR. THERE ARE MANY DOCUMENTED CASES OF THESE MIRRORS FAILING IN VARIOUS MAKES AND MODELS AS A RESULT OF USUALLY FROM THE INTERNAL FLUID LEAKING. THE LEAK DISCOLOR THE MIRROR WHICH MAKE VISIBILITY POOR. *TR

NHTSA ODI #10279068

89,982 miles · Mar 16, 2009
Equipment Adaptive/mobilityVisibility

MY INSIDE REAR VIEW MIRROR HAS FAILED. THERE IS NO MANUAL BACKUP. THE FLUID IN THE MIRROR, WHICH CAUSES THE AUTOMATIC SELF-DIMMING, HAS LEAKED OUT. THE MIRROR NOW FAILS TO PROVIDE DIMMING FOR REAR APPROACHING HEADLIGHTS RESULTING IN A BLINDED DRIVER OR NON-USE; BOTH ELIMINATING REAR VIEW CAPABILITY. THE ELECTROCHROMIC SELF-D…

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MY INSIDE REAR VIEW MIRROR HAS FAILED. THERE IS NO MANUAL BACKUP. THE FLUID IN THE MIRROR, WHICH CAUSES THE AUTOMATIC SELF-DIMMING, HAS LEAKED OUT. THE MIRROR NOW FAILS TO PROVIDE DIMMING FOR REAR APPROACHING HEADLIGHTS RESULTING IN A BLINDED DRIVER OR NON-USE; BOTH ELIMINATING REAR VIEW CAPABILITY. THE ELECTROCHROMIC SELF-DIMMING MIRRORS ARE STANDARD EQUIPMENT IN MY 1999 MERCEDES-BENZ SLK 230, MODEL R170. I HAVE RESEARCHED AND FOUND MANY DOCUMENTED CASES OF THE EXACT MIRRORS FAILING IN THE SAME WAY. THE MIRROR MANUFACTURE, MAGNA DONNELLY, WAS REPLACING THESE MIRRORS FOR FREE UNDER SOME KIND OF WARRANTY PROGRAM IN THE PAST, BUT STOPPED FOR UNKNOWN REASONS. THE PROBLEM HAS GOTTEN SO BAD THAT THEIR WARRANTY DEPARTMENT DIRECT NUMBER (616-786-7495) NOW HAS A RECORDED MESSAGE DIRECTING PEOPLE TO ANOTHER WEB SITE THAT SELLS DISCOUNTED REPLACEMENT MIRRORS. *TR

NHTSA ODI #10262061

70,000 miles · Mar 9, 2009
Visibility

THE REAR VIEW MIRROR FAIL AND LEAKING. OEM NEED TO REPLACE ALL THE MERCEDES REAR VIEW MIRROR ASAP. *TR

NHTSA ODI #10261326

92,015 miles · Jan 30, 2009
Visibility

THE LH SIDE VIEW MIRROR IN MY 1999 MERCEDES-BENZ SLK 230 (R170 MODEL) IS AN ELECTRO CHROMIC SELF-DIMMING MIRROR THAT HAS NO MANUAL BACKUP. THE MIRROR CONTAINED A FLUID WHICH LEAKED OUT CAUSING THE SELF-DIMMING MIRROR TO BE SMOKEY WHICH YOU CAN NOW BARELY SEE OUT OF AND TO FAIL TO PROVIDE DIMMING AGAINST REAR APPROACHING HEADLIGH…

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THE LH SIDE VIEW MIRROR IN MY 1999 MERCEDES-BENZ SLK 230 (R170 MODEL) IS AN ELECTRO CHROMIC SELF-DIMMING MIRROR THAT HAS NO MANUAL BACKUP. THE MIRROR CONTAINED A FLUID WHICH LEAKED OUT CAUSING THE SELF-DIMMING MIRROR TO BE SMOKEY WHICH YOU CAN NOW BARELY SEE OUT OF AND TO FAIL TO PROVIDE DIMMING 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 USUALLY FROM THE INTERNAL FLUID LEAKING. *TR

NHTSA ODI #10256917

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

2

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.

PE99055 · Refueling Spit Back

Opened Aug 30, 1999 · Closed Nov 17, 1999

Status: closed (inferred from source dates) · Vehicle Speed Control:linkages

Two owners of the subject vehicles have had trouble refueling the vehicle due to excessive click-offs and spit-backs.Both owners have reported being completel soaked when gasoline sprayed from the tank.