Mercedes Benz CLK350 problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
102 owner complaints analyzed
4 distinct recall campaigns
70,000 mi median reported failure mileage
Scope: 2006 to 2009 model years. Data snapshot: . 85 complaints include usable failure mileage.
Most common problems
Fuel/Propulsion System is the most frequently named component, appearing in 30 of 102 complaints (29.4%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Fuel system concerns | 22 | 21.6% |
| Transmission and shifting | 9 | 8.8% |
| Braking behavior | 8 | 7.8% |
| Electrical and battery issues | 7 | 6.9% |
| Engine operation | 6 | 5.9% |
| Steering behavior | 6 | 5.9% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Fuel/Propulsion System | 30 |
| Air Bags | 15 |
| Electrical System | 12 |
| Engine | 11 |
| Power Train | 8 |
| Exterior Lighting | 4 |
| Fuel System, Gasoline | 4 |
| Seats | 4 |
Fuel/Propulsion System: 30; Air Bags: 15; Electrical System: 12; Engine: 11; Power Train: 8; Exterior Lighting: 4; Fuel System, Gasoline: 4; Seats: 4
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 3 |
| 25,000 to 49,999 | 19 |
| 50,000 to 74,999 | 27 |
| 75,000 to 99,999 | 16 |
| 100,000 to 149,999 | 17 |
| 150,000 and above | 3 |
Under 25,000: 3; 25,000 to 49,999: 19; 50,000 to 74,999: 27; 75,000 to 99,999: 16; 100,000 to 149,999: 17; 150,000 and above: 3
50,000 to 74,999 miles has the most reports with usable mileage (27). 17 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2007 | 3 |
| 2009 | 1 |
| 2010 | 3 |
| 2011 | 5 |
| 2012 | 3 |
| 2013 | 8 |
| 2014 | 11 |
| 2015 | 10 |
| 2016 | 10 |
| 2017 | 12 |
| 2018 | 9 |
| 2019 | 3 |
| 2020 | 16 |
| 2021 | 4 |
| 2022 | 1 |
| 2023 | 2 |
| 2025 | 1 |
2007: 3; 2009: 1; 2010: 3; 2011: 5; 2012: 3; 2013: 8; 2014: 11; 2015: 10; 2016: 10; 2017: 12; 2018: 9; 2019: 3; 2020: 16; 2021: 4; 2022: 1; 2023: 2; 2025: 1
Pattern summary
Fuel/Propulsion System leads the component reports. Fuel system concerns appears in 22 complaint narratives. Transmission and shifting appears in 9 complaint narratives. Braking behavior appears in 8 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 10497811 · 2013-02-11 (February 11, 2013)
VEHICLE WAS PURCHASED FROM AN AUTHORIZED MERCEDES BENZ DEALERSHIP AND WAS A CERTIFIED PRE-OWNED VEHICLE. AUTOMOBILE WAS GARAGE KEPT AND PRIMARILY DRIVEN TO WORK WITH HIGHWAY MILES. ONLY PREMIUM NON-ETHANOL MIXED FUEL WAS USED FROM SHELL. SUDDENLY, ONE DAY, STRONG GASOLINE ODOR PERMEATES GARAGE. MOST NOTICEABLE WITH FULL TANK. THE CAUSE WAS A FUEL TANK SENDER UNIT. A PLASTIC DIAPHRAGM WITHIN THE UNIT DEVELOPED A STRESS CRACK RIGHT AT THE BOUNDARY BETWEEN TWO FACES. IT IS CLEAR THAT PROPER BONDING BETWEEN THE TWO WAS NOT IDEAL DURING M…
Owner-reported narrative. 59,000 miles reported. Look up ODI 10497811 at NHTSA ↗
Owner report 10544180 · 2013-09-18 (September 18, 2013)
TL* THE CONTACT OWNS A 2006 MERCEDES BENZ CLK350. THE CONTACT STATED THAT WHEN REFUELING, GASOLINE FUMES FILLED THE INSIDE OF THE VEHICLE. THE VEHICLE WAS TAKEN TO BOTH THE DEALER AND AN INDEPENDENT MECHANIC FOR INSPECTION. THE VEHICLE WAS INSPECTED AND WAS DIAGNOSED AS HAVING A DEFECTIVE RING AROUND THE FUEL PUMP AND TANK. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE INCIDENT. THE APPROXIMATE FAILURE MILEAGE WAS 56,000. ...UPDATED 10-24-13 *BF THE CONSUMER STATED GAS WAS VISIBLE ON THE TOP OF THE TANK WHERE THE ELEC…
Owner-reported narrative. 56,000 miles reported. Look up ODI 10544180 at NHTSA ↗
Owner report 10300311 · 2010-01-19 (January 19, 2010)
DRIVING HOME ON FREEWAY AT NIGHT, CAR SHIFTED UNEXPECTEDLY AT HIGH SPEED. CHECK ENGINE LIGHT IMMEDIATELY CAME ON. CAME TO STOP EXITING OFF FREEWAY AND CAR WOULD NOT MOVE, TURNED OFF AND TURNED BACK ON ENGINE WAS ABLE TO LIMP HOME WITH CHECK ENGINE LIGHT STILL ON. TOWED TO MERCEDES AND WAS TOLD IT WAS A "DEFECTIVE" SPEED SENSOR ALSO WAS TOLD THIS MALFUNCTIONING SENSOR COULD NOT BE REPLACED IN AND OF ITSELF AND THAT THE WHOLE VALVE BODY WOULD HAVE TO BE REPLACED AT A COST OF $2200 FOR A 2006 CAR WITH 58,000 MILES ON IT. BY VIRTUE OF THE FACT THE…
Owner-reported narrative. 58,000 miles reported. Look up ODI 10300311 at NHTSA ↗
Owner report 10617229 · 2014-07-29 (July 29, 2014)
TL* THE CONTACT OWNS A 2006 MERCEDES BENZ CLK350. THE CONTACT STATED THAT THE VEHICLE REDUCED IN SPEED WHEN THE ACCELERATOR PEDAL WAS APPLIED. THE CONTACT MENTIONED THAT THE ACCELERATOR PEDAL HAD TO BE DEPRESSED NUMEROUS TIMES IN ORDER TO ACCELERATE, WHICH RESPONDED INTERMITTENTLY. THE CONTACT WAS ABLE TO RESTART THE VEHICLE IN ORDER TO RESET THE COMPUTER. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER ON SEVERAL OCCASIONS WHERE THE FAILURE WAS UNABLE TO BE REPLICATED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC, WHO DIAGNOSED THAT THE TRAN…
Owner-reported narrative. 70,000 miles reported. Look up ODI 10617229 at NHTSA ↗
Owner report 10291541 · 2009-11-09 (November 9, 2009)
MY MERCEDES 350 ABS BRAKE SYSTEM FAILED AND CAUSED VERY RAPID ACCELERATION. I AVOIDED CROSSING A BUSY INTERSECTION AND CRASHED INTO A BEVERLY HILLS LAMP POST WHICH CAUSED OVER $25,000.00 DAMAGE TO THE POST AND MY CAR. MERCEDES NOT ACCEPTING ANY RESPONSIBILITY. *TR
Owner-reported narrative. 13,000 miles reported. Look up ODI 10291541 at NHTSA ↗
Owner report 10316954 · 2010-03-05 (March 5, 2010)
2006 MERCEDES CLK350 CONVERTIBLE- ABOUT 45, 000 MILES ON IT, BOUGHT AS A USED CAR IN SEPT 2009. THE HEADLIGHTS WERE LEFT ON ALL DAY AND DRAINED THE BATTERY. THE BATTERY WAS RECHARGED. THE CHECK ENGINE LIGHT CAME ON AND STAYED ON. I WOULD DRIVE ABOUT A BLOCK OR TWO AND THE SECOND TIME I PUT ON BRAKES, THE EPS DASH LIGHT WOULD COME ON AND THE ENGINE WOULD DIE. THE ENGINE COULD BE RESTARTED AND THE CAR DRIVEN (INCLUDING THE FREEWAY), BUT THE EPS LIGHT WOULD COME BACK ON AND KILL THE ENGINE, AFTER MORE BRAKING. THE CAR DIED, ON THE WAY TO THE…
Owner-reported narrative. 45,700 miles reported. Look up ODI 10316954 at NHTSA ↗
Owner report 10444791 · 2012-01-22 (January 22, 2012)
WARNING MESSAGE DISPLAYED, "SRS RESTRAINT SYSTEM MALFUNCTION VISIT WORKSHOP" UPON INVESTIGATING THIS ERROR MESSAGE ON THE INTERNET MERCEDES BENZ FORUM, I HAVE DETERMINED THE FOLLOWING: 1. THIS IS A VERY COMMON PROBLEM, AFFECTING SEVERAL MB MODELS, INCLUDING THE E-CLASS, C-CLASS, SLK, CLK, AND POSSIBLY OTHERS. 2. WHEN THIS MESSAGE APPEARS, THE DRIVER AIR BAG IS MOST LIKELY DISABLED. 3. MB SERVICE BULLETIN PB-91.60/93D ACKNOWLEDGES THIS PROBLEM AS A DESIGN OR ASSEMBLY ERROR, AND RECOMMENDS REPLACEMENT OF A WIRING COMPONENT IN THE STEERIN…
Owner-reported narrative. 39,000 miles reported. Look up ODI 10444791 at NHTSA ↗
Owner report 11000641 · 2017-06-22 (June 22, 2017)
MERCEDES BENZ VEHICLES MANUFACTURED BETWEEN 2004 & 2007 & EQUIPPED WITH MERCEDES' M272 HAVE A FAULTY BALANCE SHAFT WHICH WAS NOT PROPERLY ANEALED, CAUSING PREMATURE WEAR. THE SUBJECT ENGINES WERE MANUFACTURED WITH DEFECTIVE GEARS IN THEIR BALANCE SHAFTS. THESE DEFECTIVE GEARS WEAR OUT PREMATURELY, EXCESSIVELY, AND CAN CAUSE DAMAGE TO OTHER EXPENSIVE ENGINE COMPONENTS WITHOUT WARNING. REPAIR REQUIRES REMOVAL OF THE ENGINE AND WAS QUOTED AT $7000-$8000 BY THE MERCEDES BENZ DEALER. MOST OTHER IMPORT SHOPS DO NOT WANT TO EVEN ATTEMPT THE REPAIR DUE…
Owner-reported narrative. 77,914 miles reported. Look up ODI 11000641 at NHTSA ↗
Owner report 11430148 · 2021-08-23 (August 23, 2021)
I've just bought the car and it has only 70k, the engine doesn't want to go, it stalls but there is no check engine light on, I'll be driving and the car will just die, or start to diminish, and gas consumption , now all my lights fail, high beams, low beams, turn signals, Brake lights one after another, so I go to auto zone to purchase lights and one of the associates comes to help me, he stares that all the we ires are exposed,
Owner-reported narrative. Look up ODI 11430148 at NHTSA ↗
Owner report 10534761 · 2013-08-11 (August 11, 2013)
MY CAR HAS ALOT PROBLEMS,, I DON'T THINK ITS SAFE TO DRIVE I DON'T KNOW WHAT'S WRONG WITH IT BUT MY BALANCE AND STEERING IS NO RIGHT,... *TR
Owner-reported narrative. 80,000 miles reported. Look up ODI 10534761 at NHTSA ↗
Recalls by model year
All campaigns in the snapshot affecting each model year, including recalls announced years later.
Recall campaigns
Shared campaigns appear once in each affected model year.
| Category | Count |
|---|---|
| 2006 | 4 |
| 2007 | 4 |
| 2008 | 3 |
| 2009 | 3 |
2006: 4; 2007: 4; 2008: 3; 2009: 3