2018 Mercedes-Benz C 300 4matic: Recalls, Problems & MPG
Here are the deets on the 2018 Mercedes-Benz C 300 4matic: 3 recalls, 12 owner complaints and up to 26 mpg combined.
Recalls
3 vehicle recalls from the manufacturer. Repairs are free. Check your VIN to see if one is still open on your car.
Visibility (wipers, glass) Vehicle recall #18V608000 · 2018 · 387 vehicles
What's wrong: Incorrect bonding of the rear window May cause the window to loosen and detach from the vehicle.
Why it matters: If the window detaches from the vehicle, it can become a road hazard, increasing the risk of a crash.
The fix: Mbusa will notify owners, and dealers will rework the rear window bonding, free of charge. The recall is expected to begin November 2, 2018.
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.
Exterior lights Vehicle recall #18V906000 · 2018 · 2,364 vehicles
What's wrong: The headlights on these vehicles May not be properly adjusted. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (fmvss) number 108, "lamps, reflective devices, and associated equipment."
Why it matters: If the low beam headlight is not properly adjusted, the driver May have reduced visibility, increasing the risk of a crash.
The fix: Mbusa has notified owners, and dealers will inspect the setting of the headlights and adjust them, as necessary, free of charge. The recall began March 12, 2019.
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.
What owners describe
- Body & structure (4): no single recurring theme in the descriptions.
- Other / unknown (3): no single recurring theme in the descriptions.
- Engine (2): no single recurring theme in the descriptions.
- Airbags (1): no single recurring theme in the descriptions.
The 2018 Mercedes-Benz C 300 4matic has 12 owner complaints, ranking #1 of 7 C 300 4matic model years for complaints (4.7× the average C 300 4matic year). Complaints peaked in 2026 (6 filed that year). The typical problem showed up when the car was about 6 years old, at a median of 54,000 miles.
Engines & fuel economy (EPA)
| Engine | Transmission | Drive | City | Hwy | Comb. | Fuel |
|---|---|---|---|---|---|---|
| 2.0 L 4-cyl turbo | Automatic 9-spd | 4-Wheel Drive | 23 | 32 | 26 | Premium |
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 300 4matic.
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Most $25–$78, one-timePro-shop repair procedures, wiring diagrams and TSBs for your exact car.
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FAQ
Does the 2018 Mercedes-Benz C 300 4matic have any recalls?
Yes. NHTSA lists 3 vehicle recalls for the 2018 Mercedes-Benz C 300 4matic. 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 300 4matic problems?
Owners have filed 12 complaints with NHTSA. The most-reported areas are body & structure (4), other / unknown (3), engine (2).
What gas mileage does the 2018 Mercedes-Benz C 300 4matic get?
EPA ratings run up to 26 mpg combined (2.0 L, Automatic 9-spd), across 1 engine and transmission combos.
Where can I get a 2018 Mercedes-Benz C 300 4matic 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.