The contact owns a 2009 Mercedes - Benz CLK350. The contact stated he turned on the air condition of his vehicle and an odor of mold came from the vents. The vehicle was taken to the dealer and stated that there was no recall for that failure. The manufacturer was contacted, and they also stated that there was no recall for the failure and advised the contact to call the federal safety agency Hotline. The failure mileage was 40,030.
The worst 2009 Mercedes Benz CLK350 problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
- Fuel system2
- Visibility2
- Airbags1
- Brakes1
- Driver assistance1
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Fuel system2
- Visibility2
- Airbags1
- Brakes1
- Driver assistance1
- Seats1
- Wheels1
Recalls 3
Visibility: sun/moon roof assembly
- What is wrong
- Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2001-2011 C-Class, CLK, E-Class, and CLS vehicles. Please see the recall report for a complete list of models and model years. The glass sunroof panel may not be properly secured and can detach.
- Risk
- A detached sunroof panel can become a road hazard, increasing the risk of a crash.
- Remedy
- Dealers will inspect and replace the sunroof panel as necessary, free of charge. Owner notification letters were mailed January 10, 2025. Owners may contact MBUSA customer service at 1‑800‑367‑6372. This recall is an expansion of previous the federal safety agency recall number 22V‑954. MBUSA's number for this recall is 2024120001/2/3.
Recall number 24V874000 · Recall details
Visibility: sun/moon roof assembly
- What is wrong
- Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2001-2011 C-Class, CLK, E-Class, and CLS vehicles. Please refer to MBUSA's recall report for specific vehicle model details. The glass sunroof panel may not be properly secured and may detach.
- Risk
- A detached sunroof panel may become a road hazard, increasing the risk of a crash.
- Remedy
- Dealers will inspect and replace the sunroof panel as necessary free of charge. Owner notification letters were mailed February 3, 2023. Owners may contact MBUSA customer service at 1‑800‑367‑6372. This recall expands the federal safety agency recall number 19V‑918. MBUSA's numbers for this recall are 2023010004, 2023010005, and 2023010006.
Recall number 22V954000 · Recall details
Visibility: sun/moon roof assembly
- What is wrong
- Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2001-2011 vehicles. The bonding between the glass panel and the sliding roof frame may deteriorate, possibly resulting in the glass panel detaching from the vehicle. For a full list of the affected models visit:
- Risk
- A detached glass panel can separate from the vehicle and become a road hazard, increasing the risk of a crash.
- Remedy
- MBUSA will notify owners, and dealers will inspect the glass panel bonding and replace the sliding roof, as necessary, free of charge. The recall began July 10, 2020. Owners may contact MBUSA customer service at 1‑800‑367‑6372. MBUSA's number for this recall is 2020040011.
Recall number 19V918000 · Recall details
Technical service bulletins for the 2009 Mercedes Benz CLK350 36
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Repeat workshop visit for vehicle vibration while braking from 60MPH. NOTE: Although the symptom is...
- Clanking noise from the area of the speakers in the doors
- Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end)
- There are several types of complaint about noises or poor windshield wiper wiping performance: A: Wiper...
- Headlamp, front fog lamp leaky or fogged
- Headlamp, front fog lamp leaky or fogged
- Headlamps leaking or fogged
- Noises/ squealing from the service brake in various driving situations and ambient conditions
- Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end)
- Headlamp, front fog lamp leaky or fogged
2009 Mercedes Benz CLK350 fuel economy
Official EPA estimates in miles per gallon (MPGe for electric). Ranges cover trims that share the same engine.
| Engine | Drive | City | Highway | Combined |
|---|---|---|---|---|
| 3.5L 6‑cyl | RWD | 17 | 25 | 20 |
What 2009 Mercedes Benz CLK350 owners say
Most recent owner complaints, unedited.
Tl* the contact owns a 2009 mercedes benz clk350. The contact stated that the front driver seat headrest air bag exploded while driving, as a result, the contact sustained loss of hearing in her left ear that required medical attention. The contact stated that the vehicle's sos system alerted her of a failure and a tow truck was sent to the scene. The vehicle was towed to rbm of alpharetta (345 mcfarland pkwy, alpharetta, ga 30004) however the failure had not been diagnosed as the dealer was waiting for the manufacturer to advise and send a field inspector to the dealer. The manufacturer was made aware of the failure. The failure mileage was approximately 123,000.
Tl* the contact owns a 2009 mercedes benz clk350. The contact stated that the vehicle was taken for state emission testing and she was informed that the vehicle was included in the federal safety agency campaign number: 19v918000 (visibility) however, parts to do the recall repair were not yet available. The contact stated that the manufacturer exceeded a reasonable amount of time for the recall repair. Neither the manufacturer nor the dealer were made aware of the issue. The contact had not experienced a failure. Vin tool confirms parts not available.
Driving straight about 25mph along a an otherwise empty residential street. Experienced multiple micro-bursts of sudden, brief, violent, unintended braking. Driver's foot was nowhere near the brake pedal. Braking was so violent that the wheels locked up and made skidding sounds and occupants were shaken. Each incidence of braking was very short, perhaps a fraction of a second. The first occurrence (while traveling ~25mph) there were about four separate "brakes" within a few seconds. This occurred only two blocks from home. I proceeded home at a much slower pace with the emergency lights flashing. En route I experienced several more incidents of sudden, brief, violent unintended braking. No warning lights (e.g. Esp) flashed during any of the braking episodes. Even at low speed on a empty road the unintended braking was so violent as to leave me shaken. If it occurred at high speed, on a busy road, and/or of with an inexperienced driver the consequences could have been serious.
I was involved in a car accident last february, my airbag didn't deploy as compared to the other vehicle (toyota) where her airbag worked. My car and the other person's car were totaled. I was driving on the middle lane of a 3 lane road when the driver on the right side lane hit a parked vehicle on the right side of the road, spun around, and cross over to my lane and hit me head on. A road due to my accident, I sustained a fracture of my neck and still have ongoing physical therapy treatments. *tt
The TPMS constantly displays false warning messages about the tires being low on pressure. This began about two years ago, when the car was 7 years old, 100k miles. Numerous trips to the dealer and other repair shops has not alleviated the problem. Tpms constantly giving a false warning about low tire pressure is a serious problem. Much like smoke alarms which give false notice, false tire pressure warnings will be ignored. The vehicle is typically in a moving condition when the TPMS issues a false alert.
Tl* the contact owns a 2009 mercedes-benz clk350. While operating the vehicle, the odor of fuel was present. The vehicle was taken to the dealer where it was diagnosed that the seal connected to the fuel pump was faulty and the fuel pump needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 38,000.
Strong fuel odor outside of vehicle following fill up. Mileage 59590.just purchased used without extended warranty.. Have not taken for service. Will seek info prior to taking to mb service.
Compare the 2009 Mercedes Benz CLK350
Other model years
Questions about the 2009 Mercedes Benz CLK350
Is the 2009 Mercedes Benz CLK350 reliable?
Owners have filed 8 complaints about the 2009 Mercedes Benz CLK350, fewer than a typical CLK350 model year.
What is the 2009 Mercedes Benz CLK350 year score?
The 2009 Mercedes Benz CLK350 scores 91 out of 100 (good). The score compares it with the other model years of the Mercedes Benz CLK350: 75 is a typical year, 50 means twice the usual complaints, and serious complaints and recalls lower it.
What is the most common problem with the 2009 Mercedes Benz CLK350?
Fuel and propulsion system, with 2 complaints. Next is visibility (2).
How many recalls does the 2009 Mercedes Benz CLK350 have?
3 recalls, covering visibility.
What year does the Mercedes Benz CLK350 have the most fuel system problems?
The Mercedes Benz CLK350 model years with the most fuel system complaints are 2007 (14 complaints) and 2006 (11 complaints).
What gas mileage does the 2009 Mercedes Benz CLK350 get?
Official estimates for the 2009 Mercedes Benz CLK350 range from 20 mpg combined. The most efficient version (3.5L 6-cyl, RWD) gets 17 city and 25 highway.
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