2014 Mercedes-Benz Cls550 problems, complaints & recalls
Most-reported problem areas: Suspension (2) · Visibility:sun/Moon Roof Assembly (1) · Vehicle Speed Control (1)
Safety recalls (4)
Communication 2019-11-01 · campaign 19V787000 · 24,226 vehicles
Defect: Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2013-2017 vehicles due to a software fault that may cause the date and time for the emergency call system (eCall) to differ from the actual date and time, potentially relaying an inaccurate vehicle location. For a full list of the affected models visit: https://static.nhtsa.gov/odi/rcl/2019/RMISC-19V787-4620.pdf
Risk: An inaccurate vehicle location may delay emergency responders, increasing the risk of injury.
Fix: MBUSA has initiated an Over the Air (OTA) remote update. MBUSA will also notify owners, and dealers will check software for a successful OTA or update the communication module software as needed, free of charge. The recall began December 23, 2019. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2019120008.
Electrical System:software 2017-03-14 · campaign 17V177000 · 51 vehicles
Defect: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2016 AMG GT-S, GLC300, CLA250 and GLE300d 4Matic vehicles, 2013 C250, E350 BlueTec and G63 AMG vehicles, 2008-2014 C300 vehicles, 2013-2014 C300 4Matic and ML350 4Matic vehicles, 2009 C350 vehicles, 2014 CLS550, E350 4Matic, E350 Coupe 4Matic, E350 Wagon 4Matic, GLK350 and SL550 vehicles, 2012 CLS550 4Matic vehicles, 2012-2016 E350 vehicles, 2016-2017 GL450 4Matic vehicles, 2012-2014 ML350 4Matic BlueTec vehicles, 2015 S550, S550 4Matic and C30
Risk: If the air bags do not deploy as intended in the event of a crash, there would be an increased risk of injury in the event of a crash.
Fix: MBUSA will notify owners, and dealers will update software in the affected control units, free of charge. The recall began April 21, 2017. Owners may contact MBUSA customer service at 1-800-367-6372.
Exterior Lighting 2015-03-10 · campaign 15V137000 · 30,141 vehicles
Defect: Mercedes-Benz USA, LLC. (MBUSA) is recalling certain model year 2015 CLS 400 and CLS 400 4matic, 2012-2015 CLS 550 and CLS 550 4matic, 2012-2013 CLS 63, 2014 CLS 63, and 2014-2015 CLS 63P. The affected vehicles have LED tail lights that may not light on the sides, reducing the rear side visibility of the vehicle. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) No. 108, "Lamps, Reflective Devices, and Associated Equipment."
Risk: Reduced rear side marker illumination may prevent other drivers from seeing the vehicle, increasing the risk of a crash.
Fix: MBUSA will notify owners, and dealers will update the lighting controller software, free of charge. The recall began April 6, 2015. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2015030005.
Structure:body:hood 2015-02-13 · campaign 15V088000 · 147,224 vehicles
Defect: Mercedes-Benz USA, LLC. (MBUSA) is recalling certain model year 2013-2015 E350 Sedan, E350 4Matic Sedan, E350 4Matic Station Wagon, E400 Hybrid Sedan, CLS 550 CGI, and CLS550 4Matic, 2013-2014 E550 4Matic Sedan, 2013 E63 Sedan, E63 Station Wagon and CLS63, 2014-2015 CLS63 4Matic, E63 4Matic Sedan, E63 4Matic Sedan "S", and E63 4Matic Station Wagon, 2015 CLS400, 2015 E400 Sedan, E400 4Matic Sedan and CLS400 4Matic and 2014 CLS63 "S". The affected vehicles have a rubber seal at the back of the en
Risk: If the rubber seal falls into the engine compartment, it may contact parts of the exhaust system, increasing the risk of a fire.
Fix: MBUSA will notify owners, and dealers will attach four additional retaining clips to the rubber seal, free of charge. The recall began March 6, 2015. Owners may contact MBUSA customer service at 1-201-573-5339. MBUSA's number for this recall is 2015020001.
Service bulletins (111)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Service Brakes 2026-09-22 · LI42.10-P-078779 · Service Bulletin/Repair Instructions
complaint repeat workshop visit for vehicle vibration while braking from 60mph. note: although the symptom is similar to a tire or wheel vibration, it is usually readily noticeable that it is distinctly different if it happens at all times or only while braking. cause although the cause of the vibra
Structure:body 2026-09-14 · LI82.62-P-078631 · Service Bulletin/Repair Instructions
complaint clanking noise from the area of the speakers in the doors. cause under analysis. remedy to narrow down the cause, first of all remove the door trim. • if the noise continues to occur even with the door trim removed, then continue the diagnosis working towards the speaker and if necessary,
Structure:body 2026-08-06 · LI82.62-P-078631 · Service Bulletin/Repair Instructions
complaint clanking noise from the area of the speakers in the doors. cause under analysis. remedy to narrow down the cause, first of all remove the door trim. • if the noise continues to occur even with the door trim removed, then continue the diagnosis working towards the speaker and if necessary,
Power Train 2026-07-14 · LI35.30-P-058566 · Service Bulletin/Repair Instructions
single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end). the noise is heard once in each instance when changing direction of travel. note: sound file in attachment cause if the complaint is eliminated by experimentally loosening the outboard collar n
Electrical System 2026-05-26 · LI82.85-P-080507 · Service Bulletin/Repair Instructions
complaint after successful commissioning of the hermes control unit (n112/9) with xentry diagnosis dvd 03/2026, the message "sos - service not activated" appears on the instrument cluster. in addition, the following two conditions are also met: • hermes (n112/9) control unit: event code b15ce00 is a
Electrical System 2026-05-26 · LI82.85-P-080559 · Service Bulletin/Repair Instructions
complaint the customer requests deactivation of the n112/9 hermes communication module note: deactivation of the hermes control unit (n112/9) is not supported for gray-market vehicles. cause before deactivating the hermes control unit (n112/9), it must be clarified by the legal department of the res
Showing the 6 most recent of 111 bulletins. Search all of them free at nhtsa.gov.
What owners report
2026-01-19 · Service Brakes“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…”
2025-12-12 · Suspension“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. …”
2022-12-05 · Structure:body“ 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 ex…”
2022-06-07 · Suspension“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. …”
2020-07-07 · Fuel/Propulsion System · 82,000 mi“while vehicle was stationary in garage, we began noticing a profuse gas/fuel smell. it became increasingly strong in and out of the vehicle. approximately 3 days after smell was noticed, i contacted the local mercedes benz dealership to advise of the issue. i also did some research online, and discovered that previous years specifically; 2006-2011 …”
2020-04-14 · Visibility:sun/Moon Roof Assembly · 90,000 mi“on march 8 2020 i was driving my 2014 mercedes benz cls550 straight on the freeway when my sunroof exploded, glass shattering everywhere. glass hit my face and went down my back and cut my hands. i didn't crash the car nor was any other damage done than the sunroof. i pulled over when it was safe to inspect the vehicle and no object had came throug…”
2020-03-12 · Power Train · 76,434 mi“tl* the contact owns a 2014 mercedes benz cls550. the contact stated that while driving at low speeds and or reversing with the brake pedal depressed, the vehicle independently shifted into park without warning. the vehicle was taken to mercedes-benz of wilmington located at (3801 lancaster pike, wilmington, de 19805 (302) 995-2211) to be diagnose…”
2019-03-15 · Air Bags · 62,000 mi · 💥 crash“tl* the contact owned a 2014 mercedes-benz cls550. while driving less than 20 mph, the contact's vehicle was struck on the front driver's side fender by another vehicle. the air bag did not deploy. the contact sustained brain, neck, and lower back injuries that required medical attention. a police report was filed. the vehicle was towed to the insu…”
2017-12-21 · Steering · 73,000 mi“i recently purchased a vehicle from the name dealership online. the vehicle power steering malfunctions within approx. 20 mins after vehicle is driven rendering the vehicle unsafe for operation. i was told by the seller and dealership... text message saved, that they stand behind their products and that the vehicle being sold online had no problems…”
2014-12-18 · Vehicle Speed Control · 7,800 mi“while driving on chicago expressway, vehicle stopped accelerating and became inoperative. additionally, while waiting for tow truck on expressway, there was a burning smell coming from car. message on car display was "inoperative" "see operator's manual". *tr…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.