Mercedes-benz C400 problems

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The Mercedes-Benz W205 is the fourth generation of the Mercedes-Benz C-Class which was produced by Daimler AG between 2014 and 2021. The W205 C-Class was preceded by the W204 C-Class and superseded by the W206 C-Class. The fourth-generation C-Class was available in sedan (W205), station wagon/estate (S205), coupe (C205), cabriolet (A205) and long-wheelbase sedan (V205) body styles.

The W205 was the first vehicle to use the all-new Modular Rear Architecture (MRA) platform. The new structure is significantly lighter, using aluminum extensively throughout the body, resulting in a 100 kg (220 lb) weight decrease. According to Mercedes-Benz, the structure is much more rigid than other vehicles in its class.

Development and launch

The car was officially unveiled on 16 December 2013 and debuted at the 2014 North American International Auto Show. W205 production commenced on 4 February 2014 at the Bremen plant. European sales began in March 2014, while the vehicle went on sale in North America in September 2014, and in South Africa in March 2015.

As the Mercedes-Benz CLA-Class (released in April 2013) took the mantle of being the new entry-level sedan in Mercedes' line up of cars, Mercedes decided to make the W205 C-Class larger than its predecessor and more like the W222 S-Class, thus making it a "mini-S-Class".

The W205 included Sport and Luxury trims with 241 hp (180 kW) 2.0-liter turbocharged I4 engine and 329 hp (245 kW) 3.0-liter bi-turbo V6 engine options. Mercedes all-wheel drive 4MATIC is standard across the initial offering. The car is about 3.7 inches (94 mm) longer and 1.7 inches (43 mm) wider than the W204.

Based on the new modular MRA rear-wheel drive platform, it features front axle four-link and rear axle five-link suspension.

photo of Mercedes-benz C400 car production

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Mercedes-benz C400 model years

mercedes-benz c400 2015 photo
C400 2015
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Common Mercedes-benz C400 problems

Mercedes-Benz C400 owners have reported a variety of issues, ranging from engine performance problems to suspension concerns. Some of the most common problems include:

  • Internal Component Failure May Cause Rough Shifting: Some C400 owners have experienced rough shifting, which can be caused by internal component failure, such as a damaged transmission solenoid or worn-out clutch. This issue can lead to a less smooth driving experience and may require costly repairs.
  • Suspension Problems: Mercedes-Benz C400 owners have reported issues with the air suspension system, including sagging, strange noises, and difficulty stopping. These issues can be caused by problems with the air springs, air lines, or compressor motor, and can lead to a less safe and stable driving experience.
  • Electrical Issues: C400 owners have also reported various electrical issues, including problems with the radio, warning lights, and other electronics. These issues can be caused by faulty wiring, blown fuses, or other electrical problems, and can lead to a less reliable driving experience.
  • Interior Accessories Issues: Some C400 owners have reported issues with interior accessories, including problems with the door handles, sunroof, and other features. These issues can be caused by faulty components, wear and tear, or other problems, and can lead to a less comfortable and convenient driving experience.
  • Body and Paint Issues: Mercedes-Benz C400 owners have reported various issues with the car's body and paint, including problems with the paint quality, rust, and other issues. These issues can be caused by poor manufacturing, exposure to the elements, or other factors, and can lead to a less visually appealing car.

In general, Mercedes-Benz C400 owners have reported a variety of issues, ranging from minor inconveniences to more serious problems. These issues can be caused by a variety of factors, including wear and tear, manufacturing defects, and other problems. To address these issues, C400 owners may need to seek repairs from a qualified mechanic or dealership, or consider replacing certain components or even the entire car. It is important for C400 owners to stay on top of maintenance and address any issues promptly to ensure a safe and reliable driving experience.

Mercedes-benz C400

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Is the Mercedes C-Class a reliable car?

As part of our annual Reliability Survey, owners of the Mercedes C-Class told us that their cars were mostly proving reliable, with a good portion of owners highlighting that their cars remained dependable even after several years of use.

Which is better c300 or C400?

The C400 comes better equipped with standard features and it provides a big boost in power, but does so at a price. Still, many simply don't like the noise and lack of low end torque that 4 cylinder engines are notorious for.

What is the difference between C400 and C450 engine?

For 2016, the C400 became the C450. The curious part is that the engine remained the same size. The difference is the use of a biturbo system that is becoming the standard for all Mercedes-Benz vehicles. Turbochargers are slowly taking over the automotive industry, but it is for the better.

Latest 5 recalls Mercedes-benz C400

The National Highway Traffic Safety Administration (NHTSA) has issued 8 recalls for different components of the Mercedes-benz C400.You can explore the year of the Volkswagen Jetta you are interested in by selecting it from the list.

  • Model: Mercedes-benz C400 2015
  • Report Received Date: 2023-12-15
  • Manufacturer: Mercedes-Benz USA, LLC
  • Components: STRUCTURE:BODY:ROOF AND PILLARS
  • Summary: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2014-2020 C-Class, CLA, GLA, S-Class, GLC, and GLE vehicles. Please refer to MBUSA's recall report for specific vehicle details. The front roof panel located between the windshield and the panoramic sunroof may not have been bonded correctly to the vehicle during a prior repair, allowing the front panel to detach from the vehicle.
  • Consequence: A detached roof panel can become a road hazard, increasing the risk of a crash.
  • Remedy: Dealers will replace the front panel, free of charge. Owner notification letters were mailed on August 2, 2024. Owner notification letters will be mailed in phases, on, March 22,2024, and August 2, 2024. Owners may contact MBUSA customer service at 1-800-367-6372. This recall is an expansion of NHTSA recall number 21V-197.
  • Model: Mercedes-benz C400 2015
  • Report Received Date: 2021-03-19
  • Manufacturer: Mercedes-Benz USA, LLC
  • Components: STRUCTURE:BODY:ROOF AND PILLARS
  • Summary: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2017-2020 C300 Coupe, C43 Coupe AMG, C43 AMG, 2015-2020 C300, GLA250, 2016-2018 C350e, CLA45 Coupe AMG, 2015 C400, S65 AMG, 2015-2019 C63 AMG, 2016 C450, 2015-2016 GLA45 AMG, S600, 2016-2020 GLC300, 2017-2019 GLC43 AMG, GLE43 Coupe AMG, 2014-2019 CLA250 Coupe, 2014-2015 CLA45 AMG, 2018 GLC63 AMG, 2014-2017 S550, 2018-2020 S450, 2016-2019 GLE63 Coupe AMG, 2016 GLE450 Coupe, 2014-2020 S63 AMG, 2018-2019 S560, and 2019 GLC350e vehicles equipped with a panoramic sunroof. The front roof panel located between the windshield and the panoramic sunroof may not have been bonded correctly to the vehicle during a prior repair.
  • Consequence: The adhesive bonding of the front panel might deteriorate, possibly causing the front panel to detach from the vehicle and become a road hazard, increasing the risk of a crash.
  • Remedy: Mercedes-Benz dealer will remove the bonded panel and will install a new front panel by following the detailed repair instructions and using the approved primer, cleaner and adhesive, free of charge. Owner notification letters were mailed on September 3, 2021 and October 26, 2021. Owners may contact MBUSA customer service at 1-800-367-6372.
  • Model: Mercedes-benz C400 2015
  • Report Received Date: 2019-11-01
  • Manufacturer: Mercedes-Benz USA, LLC.
  • Components: COMMUNICATION
  • Summary: 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
  • Consequence: An inaccurate vehicle location may delay emergency responders, increasing the risk of injury.
  • Remedy: 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.
  • Model: Mercedes-benz C400 2015
  • Report Received Date: 2017-10-06
  • Manufacturer: Mercedes-Benz USA, LLC.
  • Components: AIR BAGS:FRONTAL
  • Summary: Mercedes-Benz USA, LLC. (MBUSA) is recalling these vehicles: 2014-2018 CLA250, CLA250 4Matic, CLA45 AMG 4Matic, 2015-2018 GLA250, GLA250 4Matic, GLA45 AMG 4Matic, C300 4Matic, C63S AMG, 2012-2014 C250, C350, C300 4Matic, E550 4Matic, 2013-2014 C63 AMG, 2012-2015 C250 Coupe, C350 Coupe, C63 AMG Coupe, 2013-2015 C350 4Matic Coupe, GLK250 4Matic BlueTec, GLK350, GLK350 4Matic, 2016-2017 C350e, C43 AMG, 2015 C400 4Matic, 2016-2018 C63 AMG, GLC300, GLC300 4Matic, 2017-2018 C300 Coupe, C300 4Matic Coupe, C43 AMG, C63 AMG Coupe, C63S AMG Coupe, C300 Cabriolet, C300 4Matic Cabriolet, C43 AMG Cabriolet, C63 AMG Cabriolet, C63S AMG Cabriolet, GLC300 4Matic Coupe, GLC43 AMG, GLC43 AMG Coupe, 2014 E350 Coupe, E350 4Matic Coupe, E350 Cabriolet, E400 Hybrid, 2015-2017 E400 Coupe, E400 4Matic Coupe, E400 Cabriolet, 2014-2017 E550 Coupe, E550 Cabriolet, B250e, 2014-2016 E250 BlueTec, E63 AMG 4Matic Wagon, 2012-2013 E350 BlueTec, 2012-2016 E350, E350 4Matic, 2015-2016 E400, E400 4Matic, 2012 E63 AMG, 2014-2015 E250 4Matic BlueTec, 2013-2016 E350 Wagon, 2017 GLC300d 4Matic, and 2018 GLC350e 4Matic. The driver's air bag may unexpectedly deploy due to insufficient grounding of the steering components if an electrostatic discharge occurs and the air bag clockspring is broken.
  • Consequence: If the driver air bag inadvertently deploys, it can increase the risk of injury and a crash.
  • Remedy: MBUSA will notify owners, and dealers will add sufficient grounding to the steering components, free of charge. The recall began in December 6, 2017. Owners may contact MBUSA customer service at 1-877-496-3691.
  • Model: Mercedes-benz C400 2015
  • Report Received Date: 2015-12-16
  • Manufacturer: Mercedes-Benz USA, LLC.
  • Components: STEERING:ELECTRIC POWER ASSIST SYSTEM
  • Summary: Mercedes-Benz USA, LLC (MBUSA) is recalling certain model year 2015 C300 and C400 4matic sedans manufactured January 27, 2014, to December 1, 2014. Due to an error in the electric power steering control unit software, the affected vehicles may have a loss of electric power steering assist.
  • Consequence: If the vehicle experiences a loss of power steering assist, extra steering effort will be required, especially at lower speeds, increasing the risk of a vehicle crash.
  • Remedy: MBUSA will notify owners, and dealers will update the power steering software, free of charge. The recall began in January 15, 2016. Owners may contact MBUSA customer service at 1-800-367-6372.

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