Mercedes-benz Cls450 problems

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The C257 Mercedes-Benz CLS is the third generation of the CLS range of four-door sedan, and was launched in 2018 as the successor to the Mercedes-Benz CLS (C218). It is only available as a sedan, with no plans to introduce a Shooting Brake variant in the near future. It is based heavily on the E-Class (W213).

Development and launch

Information on the C257 CLS was released online on 29 November 2017, with a public unveiling at the Detroit Auto Show in January 2018.

The new CLS uses a four-link front suspension and a five-link rear suspension and comes in rear-wheel drive and all-wheel drive (4MATIC) configurations. CLS 53 4MATIC+ models utilise variable all-wheel drive, allowing for torque distribution between the front and rear axles. An electric motor is used to boost power output by 16 kW (21 hp) and 249 N⋅m (184 lb⋅ft), and also powers the on-board 48-volt system.

The CLS is also now a five-seater car, instead of being a four-seater as with the previous two generations.

photo of Mercedes-benz Cls450 car production

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Mercedes-benz Cls450 model years

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Common Mercedes-benz Cls450 problems

The Mercedes-Benz CLS450 has been praised for its stylish exterior, luxurious interior, and powerful engine. However, some owners have reported common problems with this vehicle.

One of the most significant issues reported by CLS450 owners is engine failure. A thread on the MBWorld.org forums discusses a case where a CLS450 suffered from trashed rod bearings, which were attributed to oil starvation.

Another problem reported by CLS450 owners is excessive wheel and tire wear. Some owners have reported replacing six wheels in five months and nine tires in four months due to excessive wear. This issue has been attributed to the car's heavy weight, which puts a significant strain on the wheels and tires.

Additionally, some CLS450 owners have reported issues with the car's electronics. For example, one owner reported a bad engine wiring harness after only 50,000 miles, which is a common problem that Mercedes-Benz has not yet addressed.

Finally, some CLS450 owners have reported issues with the car's ride quality. For example, one owner reported excessive road noise from the wheels and run-flat tires, which was not resolved even after replacing the rims and tires.

While the Mercedes-Benz CLS450 is a stylish and powerful car, these common problems are worth considering before purchasing one. It is essential to be aware of these issues and to budget for potential repairs and maintenance costs.

Mercedes-benz Cls450

Is the Mercedes CLS reliable?

The Mercedes-Benz CLS550 Reliability Rating is 2.5 out of 5.0, which ranks it 15th out of 30 for luxury fullsize cars. The average annual repair cost is $985 which means it has poor ownership costs.

What are the best years for Mercedes CLS?

The Best Model Years to Buy a Mercedes-Benz CLS-Class

With the 2016, you would only pay, on average, 49% of the price as new, with 50% of the vehicle's useful life remaining. The 2022 and 2018 model years are also attractive years for the CLS-Class, and provide a relatively good value.

Why was CLS discontinued?

A Mercedes spokesperson says, “In consideration of the global growth potential, and as part of our strategic product portfolio planning, we have decided to end the lifecycle of the CLS on August 31, 2023, with the changeover of the E-Class to the 214 model series.” It's hardly a surprise.

What are the best CLS engines?

Mercedes-Benz CLS Engines

The 450d, the more powerful of the two, is as economical as the less powerful 350d but usefully quicker, especially at overtaking speeds. Both suit the laidback CLS very well.

Latest 5 recalls Mercedes-benz Cls450

The National Highway Traffic Safety Administration (NHTSA) has issued 31 recalls for different components of the Mercedes-benz Cls450.You can explore the year of the Volkswagen Jetta you are interested in by selecting it from the list.

  • Model: Mercedes-benz Cls450 2022
  • Report Received Date: 2024-02-09
  • Manufacturer: Mercedes-Benz USA, LLC
  • Components: ELECTRICAL SYSTEM:WIRING
  • Summary: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021-2023 CLS450, E450, E450 All-Terrain, AMG E53, AMG GT43, AMG GT53, and 2021 AMG CLS53 vehicles. The 48-volt ground cable connection located in the engine compartment may not be tightened properly and may result in the ground cable overheating.
  • Consequence: An overheated ground cable increases the risk of a fire.
  • Remedy: Dealers will inspect the 48-volt ground cable connection and repair it as necessary, free of charge. Owner notification letters were mailed March 22, 2024. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2024MMNNNN.
  • Model: Mercedes-benz Cls450 2021
  • Report Received Date: 2024-02-09
  • Manufacturer: Mercedes-Benz USA, LLC
  • Components: ELECTRICAL SYSTEM:WIRING
  • Summary: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021-2023 CLS450, E450, E450 All-Terrain, AMG E53, AMG GT43, AMG GT53, and 2021 AMG CLS53 vehicles. The 48-volt ground cable connection located in the engine compartment may not be tightened properly and may result in the ground cable overheating.
  • Consequence: An overheated ground cable increases the risk of a fire.
  • Remedy: Dealers will inspect the 48-volt ground cable connection and repair it as necessary, free of charge. Owner notification letters were mailed March 22, 2024. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2024MMNNNN.
  • Model: Mercedes-benz Cls450 2022
  • Report Received Date: 2023-06-26
  • Manufacturer: Mercedes-Benz USA, LLC
  • Components: FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP
  • Summary: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021-2023 C-Class, E-Class, S-Class, CLS, SL, GT, GLC, GLE, GLS, and G-Class vehicles. Please refer to MBUSA's recall report for specific vehicle details. The fuel pump may shutdown, which can result in a loss of drive power.
  • Consequence: A loss of drive power can increase the risk of a crash.
  • Remedy: Dealers will replace the fuel pump, free of charge. Owner notification letters were mailed on June 14, 2024. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2023070012.
  • Model: Mercedes-benz Cls450 2020
  • Report Received Date: 2022-09-30
  • Manufacturer: Mercedes-Benz USA, LLC
  • Components: ELECTRICAL SYSTEM:12V/24V/48V BATTERY
  • Summary: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2019-2022 CLS450 Coupe and AMG E53, 2019-2021 AMG CLS53 Coupe, and 2021-2022 E450 vehicles. The 12-Volt battery in the trunk may not be properly secured, which, in the event of a crash, can cause electrical connection failure, disabling various safety features including, emergency call (eCall) system, electric seat adjustment, hazard warning lights, and automatic door locks.
  • Consequence: The inability to operate safety features (eCall system, hazard lights, electric seats, or automatic door locks) can increase the risk of injury during a crash.
  • Remedy: Dealers will secure the 12V battery, free of charge. Owner notification letters were mailed January 20, 2023. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2022100009.
  • Model: Mercedes-benz Cls450 2021
  • Report Received Date: 2022-09-30
  • Manufacturer: Mercedes-Benz USA, LLC
  • Components: ELECTRICAL SYSTEM:12V/24V/48V BATTERY
  • Summary: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2019-2022 CLS450 Coupe and AMG E53, 2019-2021 AMG CLS53 Coupe, and 2021-2022 E450 vehicles. The 12-Volt battery in the trunk may not be properly secured, which, in the event of a crash, can cause electrical connection failure, disabling various safety features including, emergency call (eCall) system, electric seat adjustment, hazard warning lights, and automatic door locks.
  • Consequence: The inability to operate safety features (eCall system, hazard lights, electric seats, or automatic door locks) can increase the risk of injury during a crash.
  • Remedy: Dealers will secure the 12V battery, free of charge. Owner notification letters were mailed January 20, 2023. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2022100009.

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