https://plaincars.com/make/mercedes-benz-cls550 New NHTSA complaints and recalls filed for the Mercedes-Benz Cls550. en-us Sun, 20 Sep 2026 17:44:45 GMT https://plaincars.com/make/mercedes-benz-cls550 https://plaincars.com/make/mercedes-benz-cls550#complaint-2167834 Mon, 19 Jan 2026 00:00:00 GMT After the Mercedes dealer replaced the corroded rear sub frame under the 20 year extended warranty, my brake line failed so I took it back & found out that the brake lines were corroded. I paid nothing for the subframe since it was under the warranty but I ended up paying $4114 to replace the corroded brake lines. The dealer should have checked for corrosion while the subframe was out of the car, https://plaincars.com/make/mercedes-benz-cls550 https://plaincars.com/make/mercedes-benz-cls550#complaint-2156876 Fri, 12 Dec 2025 00:00:00 GMT I just had 2 tires replaced and on the way home I hit a pothole both front air shocks failed. I filed a claim and the insurance company won’t pay out either. Normal wear and tear does not make both air shocks failed. https://plaincars.com/make/mercedes-benz-cls550 https://plaincars.com/make/mercedes-benz-cls550#complaint-2139960 Wed, 15 Oct 2025 00:00:00 GMT The fuel tank has a leak from a defect in the plastic, and my local Mercedes dealership is unwilling to honor the Warranty Coverage Extension that covered fuel tank components to replace the fuel tank. https://plaincars.com/make/mercedes-benz-cls550 https://plaincars.com/make/mercedes-benz-cls550#complaint-2136558 Sun, 05 Oct 2025 00:00:00 GMT Mercedes-Benz offers an extended warranty, effectively a 20-year/unlimited mileage coverage, for the rear subframe due to corrosion with perforation, covering specific model years my vehicles make and model are included. I’m having the issues they claim free repair for. https://plaincars.com/make/mercedes-benz-cls550 https://plaincars.com/make/mercedes-benz-cls550#complaint-2136112 Fri, 03 Oct 2025 00:00:00 GMT For several months I been smelling different odors from my 2012 CLS550, getting stronger as the weeks go by now smelling like gas, would noticed puddles whenever I parked from rear driver side area towards middle, just got the news from the mechanic that the driver side fuel gas pump is cracked and leaking gas and passenger side is also cracked. Labor + parts $1,660.00.. https://plaincars.com/make/mercedes-benz-cls550 https://plaincars.com/make/mercedes-benz-cls550#complaint-2114423 Sun, 27 Jul 2025 00:00:00 GMT There is a strong odor of gasoline coming from the drivers side rear. I conducted a Google search on the issue and there are a lot of instances of the same thing. It appears to be the Gas Tank Sending Unit, they have a tendency to crack and leak. https://plaincars.com/make/mercedes-benz-cls550 https://plaincars.com/make/mercedes-benz-cls550#complaint-2075229 Wed, 19 Mar 2025 00:00:00 GMT I have Mercedes Benz CLS 550. Whenever I fill up a tank full, I smell gas in the CAR and in my garage. After researching the cause of this issue , I found its a common issue with Mercedes Benz older vehicles where the fuel sender unit cracks and start leaking Gas which is located under the rear seat driver side. Mercedes Benz sent a recall notice for same problem for older vehicles from 2006-20 https://plaincars.com/make/mercedes-benz-cls550 https://plaincars.com/make/mercedes-benz-cls550#complaint-2060106 Mon, 27 Jan 2025 00:00:00 GMT The vehicle sunroof exploded while traveling on the interstate. Stopped and inspected the vehicle to find no impact objects inside the vehicle. Later reviewed online that this was a common problem with this modern Mercedes and the item is already under recall but not my year. I have a 2012 and the recall stops at 2011 although 2012 sunroofs are exploding too https://plaincars.com/make/mercedes-benz-cls550 https://plaincars.com/make/mercedes-benz-cls550#complaint-2059279 Fri, 24 Jan 2025 00:00:00 GMT The failed component of the car was the drivers side fuel transfer pump. After noticing the faint smell of gas in my car i checked under the rear driver side passenger seat. I was shocked to find more than 16 fluid ounces of gas floating freely around the well of the gas pump.the insulation under the rear passenger seat is soaked in gas. I can only imagine what could’ve happened if there was an https://plaincars.com/make/mercedes-benz-cls550 https://plaincars.com/make/mercedes-benz-cls550#complaint-2020851 Fri, 30 Aug 2024 00:00:00 GMT Premature rusting on brake and fuel lines which lead to further issues with driveability and saftey. This us caused by the same defects leading to the Premature rust on the subframe that can cause a serious wreck on the interstate. https://plaincars.com/make/mercedes-benz-cls550 https://plaincars.com/make/mercedes-benz-cls550#complaint-2020852 Fri, 30 Aug 2024 00:00:00 GMT Premature rusting on brake and fuel lines which lead to further issues with driveability and saftey. This us caused by the same defects leading to the Premature rust on the subframe that can cause a serious wreck on the interstate. https://plaincars.com/make/mercedes-benz-cls550 https://plaincars.com/make/mercedes-benz-cls550#complaint-2020853 Fri, 30 Aug 2024 00:00:00 GMT Premature rusting on brake and fuel lines which lead to further issues with driveability and saftey. This us caused by the same defects leading to the Premature rust on the subframe that can cause a serious wreck on the interstate. https://plaincars.com/make/mercedes-benz-cls550 https://plaincars.com/make/mercedes-benz-cls550#complaint-1995636 Thu, 30 May 2024 00:00:00 GMT I bought a 2008 mercedes cls and have had it for a while now and with no warning it has started making a banging noise while idling. It idles very rough and shakes my car. I'm unable to drive it safely at this point. The engine is also mimicking symptoms of an idler gear/ balance shaft wearing down due to poor building materials from factory allowing movement of the timing chain. Apparently causin https://plaincars.com/make/mercedes-benz-cls550 https://plaincars.com/make/mercedes-benz-cls550#complaint-1943696 Thu, 16 Nov 2023 00:00:00 GMT I brought the car to my Mercedes dealer for a State required safety and emissions inspection. It passed but they said the rear brake line were rusted and needed replacement at a cost of $2546.00. This model and numerous others were recently provided an extended warranty for rusted subframes. This is a $5-$7K repair. They do not cover the brake lines or include them as part of the repair. The sub https://plaincars.com/make/mercedes-benz-cls550 https://plaincars.com/make/mercedes-benz-cls550#complaint-1931715 Thu, 28 Sep 2023 00:00:00 GMT I see there was a recall on instrument clusters on my vehicle in 2001. My instrument cluster is completely black and I can’t see speed or any thing at night. You cant replace the bulb or cluster unless mercedes reprogram it which the price is rediculous. I did some research and seen that Mercedes did some recalls for my vehicle but it doesn’t show up. I was told to contact you guys in regards to t https://plaincars.com/make/mercedes-benz-cls550 https://plaincars.com/make/mercedes-benz-cls550#complaint-1927128 Tue, 12 Sep 2023 00:00:00 GMT The contact owns a 2012 Mercedes-Benz CLS550. The contact stated that while driving at an undisclosed speed, upon adjusting the sun visor, the sun visor detached, compromising driving visibility. The vehicle was taken to the dealer and the contact was informed that the sun visor needed to be replaced. The vehicle was repaired, but the failure reoccurred. The manufacturer was notified of the failur https://plaincars.com/make/mercedes-benz-cls550 https://plaincars.com/make/mercedes-benz-cls550#complaint-1926130 Fri, 08 Sep 2023 00:00:00 GMT The contact owns a 2012 Mercedes-Benz CLS550. The contact stated while driving at an undisclosed speed, the sunroof exploded. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was not made aware of the failure. The approximate failure mileage was 86,000. https://plaincars.com/make/mercedes-benz-cls550 https://plaincars.com/make/mercedes-benz-cls550#complaint-1909859 Fri, 14 Jul 2023 00:00:00 GMT Recall Campaign #2005110001. https://plaincars.com/make/mercedes-benz-cls550 https://plaincars.com/make/mercedes-benz-cls550#complaint-1859593 Thu, 15 Dec 2022 00:00:00 GMT The rear subframe rusted from the inside out causing structural failure of the subframe. This lead to twisting of the chassis under hard braking causing difficulty in controlling the vehicle. As you can imagine, controlling a vehicle when needing to abruptly stop is very important. The rear end felt like it was getting loose and it was very difficult to keep the car moving straight. This type of https://plaincars.com/make/mercedes-benz-cls550 https://plaincars.com/make/mercedes-benz-cls550#complaint-1857495 Mon, 05 Dec 2022 00:00:00 GMT have a 2014 cls-550 with extensive subframe rust. It is currently sitting at the dealership for $3,158 in repairs for a vehicle that is less than 10 years old. There needs to be a recall on the subframe for the c, cls, e, and like models. This is not the Mercedes’-Benz quality I expected. After extensive research, members all over the globe are experiencing the same issue. This isn’t user error. I https://plaincars.com/make/mercedes-benz-cls550 https://plaincars.com/make/mercedes-benz-cls550#complaint-1852113 Sat, 05 Nov 2022 00:00:00 GMT Fuel/propulsion system failed during operation on X-Way. Squeaking noise front suspension. Wheel rims cracking. Replacement key fob not working. https://plaincars.com/make/mercedes-benz-cls550 https://plaincars.com/make/mercedes-benz-cls550#complaint-1852114 Sat, 05 Nov 2022 00:00:00 GMT Fuel/propulsion system failed during operation on X-Way. Squeaking noise front suspension. Wheel rims cracking. Replacement key fob not working. https://plaincars.com/make/mercedes-benz-cls550 https://plaincars.com/make/mercedes-benz-cls550#complaint-1852115 Sat, 05 Nov 2022 00:00:00 GMT Fuel/propulsion system failed during operation on X-Way. Squeaking noise front suspension. Wheel rims cracking. Replacement key fob not working. https://plaincars.com/make/mercedes-benz-cls550 https://plaincars.com/make/mercedes-benz-cls550#complaint-1841047 Thu, 15 Sep 2022 00:00:00 GMT Drained Battery everyday. https://plaincars.com/make/mercedes-benz-cls550 https://plaincars.com/make/mercedes-benz-cls550#complaint-1817566 Tue, 07 Jun 2022 00:00:00 GMT Front passenger assembly strut went out suddenly while driving almost caused an accident.No warning signs just gave out. Vehicle is in the shop but cannot be repaired because the part is out of stock and no ETA on when vendor will restock them. https://plaincars.com/make/mercedes-benz-cls550 https://plaincars.com/make/mercedes-benz-cls550#complaint-1814104 Sun, 22 May 2022 00:00:00 GMT My doors will open without the keyfob being in close proximity to the vehicle. My car has been stolen d/t this feature. Also the electrical lighting system malfunctions causing dimmer lights especially when driving at night https://plaincars.com/make/mercedes-benz-cls550 https://plaincars.com/make/mercedes-benz-cls550#complaint-1814105 Sun, 22 May 2022 00:00:00 GMT My doors will open without the keyfob being in close proximity to the vehicle. My car has been stolen d/t this feature. Also the electrical lighting system malfunctions causing dimmer lights especially when driving at night https://plaincars.com/make/mercedes-benz-cls550 https://plaincars.com/make/mercedes-benz-cls550#complaint-1814106 Sun, 22 May 2022 00:00:00 GMT My doors will open without the keyfob being in close proximity to the vehicle. My car has been stolen d/t this feature. Also the electrical lighting system malfunctions causing dimmer lights especially when driving at night https://plaincars.com/make/mercedes-benz-cls550 https://plaincars.com/make/mercedes-benz-cls550#complaint-1806737 Mon, 11 Apr 2022 00:00:00 GMT Car looses communication with the Electronic Ignition System (keyless system) and while rolling to a stop light, slams the car into park while still rolling. It also will throw itself into park while first accelerating - almost causing the car following me to crash into my rear end. https://plaincars.com/make/mercedes-benz-cls550 https://plaincars.com/make/mercedes-benz-cls550#complaint-1806738 Mon, 11 Apr 2022 00:00:00 GMT Car looses communication with the Electronic Ignition System (keyless system) and while rolling to a stop light, slams the car into park while still rolling. It also will throw itself into park while first accelerating - almost causing the car following me to crash into my rear end.