MotorDeets

2018 Mercedes-Benz C 350 E: Recalls, Problems & MPG

Here are the deets on the 2018 Mercedes-Benz C 350 E: 5 recalls, 2 owner complaints and up to 30 mpg combined.

5vehicle recalls
2owner complaints
0mention a crash
30best combined mpg
2018 Mercedes-Benz C 350 E
Photo: Navigator84 · CC BY-SA 4.0 · Wikimedia Commons. Representative photo of this generation; trim may differ.

Recalls

5 vehicle recalls from the manufacturer. Repairs are free. Check your VIN to see if one is still open on your car.

Airbags Vehicle recall #18V838000 · 2018 · 104,663 vehicles

What's wrong: The status of the passenger side air bag May not display correctly.

Why it matters: If the passenger air bag is incorrectly displayed as 'on' when it is not, a front seat passenger May be unaware that the air bag will not deploy in the event of a crash, increasing their risk of injury.

The fix: Mbusa will notify owners, and dealers will update the audio head unit software, free of charge. The recall began January 3, 2019.

Steering Vehicle recall #18V850000 · 2018 · 6,373 vehicles

What's wrong: A locknut in the steering rack May break under high load, possibly causing the steering to become stuck in one position.

Why it matters: A car that cannot be properly steered has an increased risk of a crash.

The fix: Mbusa will notify owners, and dealers will replace the steering rack, free of charge. The recall began August 23, 2019.

Communication, Electrical Vehicle recall #21V058000 · 2021 · 1,292,258 vehicles

What's wrong: Please refer to the part 573 report for specific vehicle model details. The software design of the communication module May fail to communicate the correct vehicle location for the emergency call system (ecall) in the event of a crash.

Why it matters: Failure of the ecall system May result in emergency responders being dispatched to the wrong location, increasing the risk of injury following a crash.

The fix: Mbusa will notify owners, and the communication module software will be updated by a dealer, or through an over-the-air (ota) update, free of charge. The recall began March 12, 2021.

Body & structure Vehicle recall #21V197000 · 2021 · 15,096 vehicles

What's wrong: 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.

Why it matters: 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.

The fix: 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.

Body & structure Vehicle recall #23V854000 · 2023 · 2,976 vehicles

What's wrong: 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.

Why it matters: A detached roof panel can become a road hazard, increasing the risk of a crash.

The fix: 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.

Most-reported problems

Owner complaints filed with NHTSA, by component. One complaint can list several components. 0 mention a fire, 0 injuries and 0 deaths were reported.

Engine2
Transmission & drivetrain1

What owners describe

The 2018 Mercedes-Benz C 350 E has 2 owner complaints, ranking #1 of 3 C 350 E model years for complaints (3.0× the average C 350 E year). Neighboring years: 2019 (0 complaints, 2 recalls).

Engines & fuel economy (EPA)

EngineTransmissionDriveCityHwyComb.Fuel
2.0 L 4-cyl turbo hybridAutomatic 7-spdRear-Wheel Drive283230Premium and Electricity

Want the full repair deets? Get the factory manual.

Recall and complaint data tells you what goes wrong. A service manual tells you how to fix it: torque specs, wiring diagrams, fluid capacities and step-by-step procedures for the 2018 Mercedes-Benz C 350 E.

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Haynes Print book or AllAccess online

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FAQ

Does the 2018 Mercedes-Benz C 350 E have any recalls?

Yes. NHTSA lists 5 vehicle recalls for the 2018 Mercedes-Benz C 350 E. Recall repairs are free at any dealer, no matter how old the car is. Check your VIN at nhtsa.gov/recalls.

What are the most common 2018 Mercedes-Benz C 350 E problems?

Owners have filed 2 complaints with NHTSA. The most-reported areas are engine (2), transmission & drivetrain (1).

What gas mileage does the 2018 Mercedes-Benz C 350 E get?

EPA ratings run up to 30 mpg combined (2.0 L, Automatic 7-spd), across 1 engine and transmission combos.

Where can I get a 2018 Mercedes-Benz C 350 E repair manual?

eManualOnline sells downloadable manuals, Mitchell 1 DIY and ALLDATAdiy sell online access to factory repair data, and Haynes sells printed guides and online access. Pick a download if you want to keep it, or a subscription for wiring diagrams and TSBs.

Other C 350 E years

201820192020