2018 Mercedes-Benz C-Class

Showing the 2018 C-Class C300d-4M. NHTSA's VIN data shows it with a 2.0 L engine, but that may not be every version of it, so the numbers below cover every version of this model year. Every version

Owner complaints, recalls, fuel economy and safety ratings from public NHTSA and EPA data, updated Oct 18, 2026.

Fuel economy
19–30 mpgcombined; city 17–28, highway 22–33; every version of this model year; plug-in hybrid versions on gasoline, 51 MPGe on electricity
Five years of fuel
$14,910–$21,180U.S. average; Ohio $14,050–$19,960 at local prices; every version of this model year; fuel only, not other costs of owning it; 15,000 miles a year, at EIA fuel prices for the week of Oct 12, 2026. Plug-in hybrid versions: $13,750, EPA's own estimate for plug-in hybrids: its national gasoline and electricity prices and the share of miles it expects on electricity; not priced for any state
NHTSA overall safety rating
5 starslowest across the versions NHTSA tested
Recall campaigns
19over its history; check a VIN for open ones
Owner complaints
129filed with NHTSA; not adjusted for sales

Trims

NHTSA's VIN data lists these trims for the 2018 C-Class. A trim's engine and numbers are shown as its own only where EPA names versions after the trim and no other version could be it; "seen with" means a source shows that engine on the trim, not that it was the only one. Recalls and complaints cover the whole model year: whether a recall applies to a car depends on its VIN, on NHTSA's recall lookup.

Problems owners report

Owners have filed 129 complaints with NHTSA about the 2018 C-Class. These are unverified owner reports, counted by the part of the car they name; one complaint can name several parts. Counts aren't adjusted for how many were sold, so they don't show how reliable a car is.

Complaints by part of the car
PartComplaintsCrashesFiresInjuries
Engine39000
Unknown or other27000
Structure19200
Steering13101
Electrical system12100
Fuel/propulsion system9000
Power train6000
Air bags5101
Communication5000
Tires5100
Wheels5000
Forward collision avoidance4200
13 more parts
Seat belts3000
Visibility3000
Exterior lighting2000
Service brakes2000
Visibility/wiper2000
Back over prevention1000
Engine and engine cooling1000
Equipment1000
Fuel system, gasoline1000
Interior lighting1000
Latches/locks/linkages1000
Seats1000
Suspension1000
What the columns count

Complaints by model year

Newer years have had less time to collect complaints, and counts aren't adjusted for sales, so a shorter bar doesn't mean a more reliable year.

  1. 2006181
  2. 2007274
  3. 2008834
  4. 2009656
  5. 2010475
  6. 2011509
  7. 2012579
  8. 2013565
  9. 2014271
  10. 2015412
  11. 2016317
  12. 2017250
  13. 2018129
  14. 201978
  15. 202045
  16. 202117
  17. 202226
  18. 202326
  19. 202415
  20. 20254
  21. 20264

Every C-Class year side by side

Recalls

NHTSA lists 19 recall campaigns for the 2018 C-Class over its history. Campaigns are matched by model and year, so each one may apply to a given car, and its repair may already be done: check a VIN on NHTSA's recall lookup for the open recalls on that exact car.

Structure: body

NHTSA campaign 23V854000 · reported Dec 15, 2023 · 2,976 vehicles potentially affected across the whole campaign

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.

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.

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

NHTSA's record and documents

Communication: auto crash notification; Electrical system: software

NHTSA campaign 22V365000 · reported May 20, 2022 · 242,722 vehicles potentially affected across the whole campaign

Remedy: The communication module software will be updated through an Over-the-Air (OTA) update or by a dealer, free of charge. Owner notification letters were mailed July 8, 2022. Owner notification letters will be mailed in phases, on July 8, 2022, May 17, 2024, July 29, 2024, and September 27, 2024. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's numbers are for this recall is 2022060005 and 2023110006.

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2017-2022 CLA-Class, GLA-Class, GLE-Class, GLS-Class, SLC-Class, A-Class, AMG GT-Class, C-Class, E-Class, S-Class, SL-Class, GLC-Class, CLS-Class, GLB-Class, and G-Class vehicles. Please refer to MBUSA's recall report for specific vehicle model details. An error in the communication module's SIM card software can cause a mobile network connection failure, disabling the emergency call (eCall) system.

Risk: A disabled eCall system would prevent a vehicle occupant from contacting the emergency services call center in an emergency, potentially delaying emergency responders and increasing the risk of injury.

NHTSA's record and documents

Exterior lighting: headlights

NHTSA campaign 21V509000 · reported Jul 2, 2021 · 1,467 vehicles potentially affected across the whole campaign

Remedy: Dealers will replace the LED headlights, free of charge. Interim letters notifying owners of the safety risk were mailed August 13, 2021. A second notice will be sent once the remedy is available. Owner notification letters were mailed January 2022. Owners may contact MBUSA customer service at 1-800-367-6372.

Mercedes-Benz LLC (MBUSA) is recalling certain 2018-2020 C300, 2019-2020 A220, AMG C43, AMG C63, 2020 GLE580, GLB250, 2020-2021 GLE450, GLE350, 2021 AMG GLE63, and AMG GLE53 vehicles. The LED headlights may have been incorrectly adjusted during a vehicle repair. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 108, "Lamps, Reflective Devices, and Associated Equipment."

Risk: Incorrectly adjusted headlights may reduce visibility, increasing the risk of a crash.

NHTSA's record and documents

Structure: body

NHTSA campaign 21V197000 · reported Mar 19, 2021 · 15,096 vehicles potentially affected across the whole campaign

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.

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.

Risk: 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.

NHTSA's record and documents

Communication; Communication: auto crash notification

NHTSA campaign 21V072000 · reported Feb 12, 2021 · 67 vehicles potentially affected across the whole campaign

Remedy: MBUSA will notify owners, and dealers will inspect the communication module and activate it, if necessary, free of charge. The recall began March 31, 2021. Letters for the owners of the 9 additional vehicles were mailed July 9, 2021. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2021030005.

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2017-2019 C300, E300, 2018-2020 CLA250, 2020 CLS450, AMG E53, AMG GT53, GLE450, 2018 AMG E63, AMG GTA, 2017-2020 GLA250, GLC300, 2019 GLC350, AMG GLC43, 2017-2018 GLE350, 2019 AMG GLC 43, GLC350, GLE400, 2017 GLS450, S550, C300 Cabrio, and 2018-2019 S560 vehicles. On June 18, 2021, an additional 9 vehicles were added, including certain 2021 GLA250, GLC300, 2018 S450, E400, and 2017 CLA250 vehicles. The communication module might have been inadvertently deactivated during a service visit, which could have disabled the Emergency Call (eCall) function.

Risk: A disabled eCall system would prevent a vehicle occupant from contacting emergency services through the call center in an emergency, potentially delaying emergency responders and increasing the risk of injury.

NHTSA's record and documents

Communication: auto crash notification; Electrical system: software

NHTSA campaign 21V058000 · reported Feb 5, 2021 · 1,292,258 vehicles potentially affected across the whole campaign

Remedy: 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. Owners may contact MBUSA customer service at 1-877-762-8267. MBUSA's number for this recall is 2021020025.

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2016 - 2021 CLA-Class, GLA-Class, GLE-Class, GLS-Class, SLC-Class, A-Class, GT-Class, C-Class, E-Class, S-Class, CLS-Class, SL-Class, B-Class, GLB-Class, GLC-Class, and G-Class vehicles. 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.

Risk: Failure of the eCall system may result in emergency responders being dispatched to the wrong location, increasing the risk of injury following a crash.

NHTSA's record and documents

Seat belts: front

NHTSA campaign 21V032000 · reported Jan 29, 2021 · 24,550 vehicles potentially affected across the whole campaign

Remedy: MBUSA will notify owners, and dealers will check the retraction function of the front seat belts and adjust the damping foam within the B-pillars, as necessary, free of charge. The recall began February 26, 2021. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2021020010.

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2017-2021 C300, 2017-2020 AMG C43, and AMG C63 vehicles. The front seat belts might not fully retract to their stowed position. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 208, "Occupant Crash Protection."

Risk: If the seat belt does not fully retract, the occupant may find the operation of the seat belt inconvenient and not wear it, increasing the risk of injury in the event of a crash.

NHTSA's record and documents

Electrical system: 12v/24v/48v battery

NHTSA campaign 19V586000 · reported Aug 9, 2019 · 26,584 vehicles potentially affected across the whole campaign

Remedy: MBUSA will notify owners, and dealers will replace the battery mounting bracket, free of charge. The recall began October 18, 2019. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2019090010.

Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2018-2019 C300, C300 4MATIC, and C43 AMG 4MATIC vehicles. The mounting bracket for the 12-volt battery may not be secured. This may allow the battery to shift, possibly disconnecting the terminals in the event of a crash.

Risk: Loss of power from the battery can impair post-crash functions, such as communicating with emergency services and activating hazard lights. The battery may also detach and become a road hazard. Either of these scenarios can increase the risk of injury.

NHTSA's record and documents

Seats

NHTSA campaign 19V130000 · reported Feb 26, 2019 · 22,637 vehicles potentially affected across the whole campaign

Remedy: Mercedes will notify owners, and dealers will inspect the locking of the seatback on the affected vehicles and replace the seatback lock, as necessary, free of charge. An interim owner letter was mailed on April 12, 2019 to notify owners. Owners will receive a second notification when the remedy is available. Owners may contact Mercedes-Benz customer service at 1-800-367-6372. MBUSA's number for this recall is 2019040007.

Mercedes-Benz USA, LLC (Mercedes) is recalling certain 2017-2018 Mercedes-Benz C300 Cabriolet, C300 Coupe, AMG C43 Coupe, C300 4MATIC Cabriolet, C300 4MATIC Coupe, AMG C43 Cabriolet, AMG C63 Cabriolet, AMG C63 Coupe, AMG C63 S Cabriolet and AMG C63 S Coupe vehicles and 2018 Mercedes-Benz E400 Coupe, E400 Cabriolet, E400 4MATIC Cabriolet and E400 4MATIC Coupe vehicles. The seatbacks of the front seats may not properly lock on the right side of the seat.

Risk: If the seatback does not properly lock, in the event of a crash, the seatbacks may fold forward, increasing the risk of injury.

NHTSA's record and documents

Exterior lighting: headlights

NHTSA campaign 18V906000 · reported Dec 19, 2018 · 2,364 vehicles potentially affected across the whole campaign

Remedy: 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. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2019020008.

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2018 Mercedes-Benz C300 and C300 4MATIC vehicles. 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."

Risk: If the low beam headlight is not properly adjusted, the driver may have reduced visibility, increasing the risk of a crash.

NHTSA's record and documents

Steering

NHTSA campaign 18V872000 · reported Dec 7, 2018 · 2 vehicles potentially affected across the whole campaign

Remedy: MBUSA will notify owners, and dealers will inspect the steering coupling and lock it correctly if necessary, free of charge. The recall began January 18, 2019. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2018120010.

Mercedes-Benz USA, LLC (MBUSA) is recalling one 2018 Mercedes-Benz E400 Coupe and one C300 4Matic Coupe. The steering coupling may not have been correctly locked during manufacturing.

Risk: If the steering connection was not properly locked, the mechanical connection between the steering wheel and steering rack may come loose, reducing steering ability and increasing the risk of a crash.

NHTSA's record and documents

Steering: rack and pinion

NHTSA campaign 18V850000 · reported Nov 29, 2018 · 6,373 vehicles potentially affected across the whole campaign

Remedy: MBUSA will notify owners, and dealers will replace the steering rack, free of charge. The recall began August 23, 2019. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2019080012.

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2015-2016 Mercedes Benz C300, 2017-2019 C300 Cabrio, C300 Coupe, C63 Cabrio, 2015 C63S AMG, 2018-2019 C300, C350e, C63 AMG, C63S AMG Cabrio, 2018 C63 AMG Cabrio, C63 AMG Coupe, C63S AMG, C63S AMG Coupe, E300, E400 Cabrio, E400 Coupe, 2019 CLS450, E450 Cabrio, and E450 Coupe rear-wheel drive vehicles. A locknut in the steering rack may break under high load, possibly causing the steering to become stuck in one position.

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

NHTSA's record and documents

Air bags: sensor

NHTSA campaign 18V838000 · reported Nov 27, 2018 · 104,663 vehicles potentially affected across the whole campaign

Remedy: MBUSA will notify owners, and dealers will update the audio head unit software, free of charge. The recall began January 3, 2019. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2018120009.

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2018 C300 Cabriolet, C300 Coupe, C300 4Matic Cabriolet, C300, C300 4Matic Coupe, C300 4Matic, C43 AMG Cabriolet, C43 AMG Coupe, C63 S AMG Cabriolet, C350e Plug-In Hybrid, C63 AMG Cabriolet, C63 AMG Coupe, C63 S AMG Coupe, C63 AMG, C63 S AMG, 2018-2019 GLC300 4Matic Coupe, GLC300, GLC63 AMG Coupe, GLC300 4Matic, GLC350e Plug-In Hybrid, GLC43 AMG Coupe, GLC43 AMG, GLC63 S AMG Coupe, and GLC63 AMG vehicles equipped with Audio 20 head units and automatic child seat recognition. The status of the passenger side air bag may not display correctly.

Risk: 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.

NHTSA's record and documents

Electrical system: 12v/24v/48v battery

NHTSA campaign 18V725000 · reported Oct 15, 2018 · 4,073 vehicles potentially affected across the whole campaign

Remedy: MBUSA will notify owners, and dealers will replace the positive pole cover, free of charge. The recall began November 27, 2018. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2018110002.

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2018 Mercedes-Benz C300 4Matic Coupe, C300 4Matic Cabrio, E300, E300 4Matic, C300, C300 4Matic, C300 Coupe and C300 Cabrio vehicles. The cover for the starter battery may not cover the live positive electrical wire, and in certain crashes, the vehicle's strut brace may deform and short circuit the battery.

Risk: If the battery is shorted, the emergency door unlocking would be deactivated for an outside responder and the short circuit could increase the risk of a fire.

NHTSA's record and documents

Visibility: glass, side/rear

NHTSA campaign 18V608000 · reported Sep 11, 2018 · 387 vehicles potentially affected across the whole campaign

Remedy: MBUSA will notify owners, and dealers will rework the rear window bonding, free of charge. The recall is expected to begin November 2, 2018. Owners may contact MBUSA customer service at 1-800-367-6372.

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2018 Mercedes-Benz C300, C300 4MATIC, C63 AMG, and C63S AMG vehicles. Incorrect bonding of the rear window may cause the window to loosen and detach from the vehicle.

Risk: If the window detaches from the vehicle, it can become a road hazard, increasing the risk of a crash.

NHTSA's record and documents

Structure: body

NHTSA campaign 18V456000 · reported Jul 10, 2018 · 10,826 vehicles potentially affected across the whole campaign

Remedy: MBUSA will notify owners, and dealers will inspect the rear beltline trim and replace the trim if necessary, free of charge. The recall began on September 21, 2018. Owners may contact MBUSA customer service at 1-800-367-6372.

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2017-2018 Mercedes C300 Cabriolet, C300 4Matic Cabriolet, C43 AMG Cabriolet, C63S AMG Cabriolet, and C63 AMG Cabriolet vehicles. Due to a bonding issue introduced in the production process, the rear beltline trim may separate from the vehicle.

Risk: If the beltline trim were to separate from the vehicle while driving, it could become a road hazard, increasing the risk of a crash.

NHTSA's record and documents

Seats

NHTSA campaign 18V207000 · reported Mar 29, 2018 · 3,088 vehicles potentially affected across the whole campaign

Remedy: MBUSA will notify owners, and dealers will inspect the locking of the seatbacks, replacing the seatbacks lock, as necessary, free of charge. The recall is expected to begin May 25, 2018. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2018040007.

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2017-2018 C43 AMG 4Matic Coupe, C300 Coupe, C300 4Matic Coupe, C300 4Matic Cabriolet, C300 Cabriolet, C43 AMG 4Matic Cabriolet and C63S AMG Cabriolet, 2017 C63 AMG Cabriolet, C63S AMG Coupe and C63 AMG Coupe, 2018 E400 Coupe and E400 4Matic Coupe vehicles. The seatbacks of the front seats may not properly lock on the right side of the seat.

Risk: If the seatback does not properly lock, in the event of a crash, the seatbacks may fold forward, increasing the risk of injury.

NHTSA's record and documents

Seats: front assembly

NHTSA campaign 18V150000 · reported Mar 6, 2018 · 99 vehicles potentially affected across the whole campaign

Remedy: MBUSA will notify owners, and dealers will inspect the welds of the backrest frames, replacing the backrests as necessary, free of charge. The recall is expected to begin May 4, 2018. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2018060001.

Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2018 Mercedes Benz C43 AMG, C63S AMG, E63 S AMG Sedan, and E63S AMG Stationwagon vehicles fitted with AMG performance seats. The backrest rail and backrest fitting may not be properly welded on the driver and front passenger seats.

Risk: The incorrect welding may result in the seats failing in the event of a crash, increasing the risk of injury.

NHTSA's record and documents

Air bags: frontal

NHTSA campaign 17V627000 · reported Oct 6, 2017 · 495,290 vehicles potentially affected across the whole campaign

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.

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.

Risk: If the driver air bag inadvertently deploys, it can increase the risk of injury and a crash.

NHTSA's record and documents

Service bulletins and investigations

Carmakers sent NHTSA 248 service bulletins and notices that cover the 2018 C-Class, the latest on Sep 26, 2026. They tell dealers how to fix known issues.

The parts they mention most: electrical system (68), engine (39), power train (37), equipment (30), engine and engine cooling (18).

NHTSA defect investigations

Opening an investigation isn't a finding of a defect. Outcomes are as NHTSA's summary states them. A recall is shown as an investigation's outcome only where NHTSA's summary names it; other recalls NHTSA's file lists with it are marked as listed, not caused.

InvestigationPartOpenedStatus
Defect petition DP22005
Pedestrian alert sounds · covers 43 makes
Electrical systemJan 27, 2023Closed Aug 7, 2023
Petition withdrawn
NHTSA's record and documents
Engineering analysis EA21002
Desiccated Air Bag Inflator Rupture · covers 37 makes
Air bagsSep 17, 2021Open
NHTSA's record and documents
Preliminary evaluation PE21001
Front Roof Panel Detachment
StructureJan 8, 2021Closed Oct 14, 2021
NHTSA's summary names recall 21V197000
NHTSA's record and documents

Maintenance

Oil

The owner's manual gives the oil and how often to change it. We show oil facts only once we've checked them against the manual, and we haven't yet for the 2018 C-Class.

Oil change near you: Jiffy Lube · Take 5

Used ones for sale

See used 2018 Mercedes-Benz C-Classs for sale on: Autotrader · CarMax

These are searches on those sites; we don't copy or check their listings. Your ZIP is used for these links and never kept.

Specs

EPA class: subcompact cars. EPA greenhouse gas score: 3–9 out of 10. Each version EPA tested:

VersionEngineTransmissionFuelCity / hwy / comb
AMG C43 4matic
4-Wheel Drive
3.0 L, 6 cyl, turboAutomatic 9-spdPremium Gasoline20 / 27 / 23
AMG C43 4matic
4-Wheel Drive
3.0 L, 6 cyl, turboAutomatic 9-spdPremium Gasoline20 / 27 / 22
AMG C63
Rear-Wheel Drive
4.0 L, 8 cyl, turboAutomatic 7-spdPremium Gasoline18 / 24 / 20
AMG C63
Rear-Wheel Drive
4.0 L, 8 cyl, turboAutomatic 7-spdPremium Gasoline17 / 22 / 19
AMG C63 S
Rear-Wheel Drive
4.0 L, 8 cyl, turboAutomatic 7-spdPremium Gasoline18 / 24 / 20
AMG C63 S
Rear-Wheel Drive
4.0 L, 8 cyl, turboAutomatic 7-spdPremium Gasoline17 / 22 / 19
C300
Rear-Wheel Drive
2.0 L, 4 cyl, turboAutomatic 9-spdPremium Gasoline24 / 33 / 27
C300
Rear-Wheel Drive
2.0 L, 4 cyl, turboAutomatic 9-spdPremium Gasoline22 / 30 / 25
C300 4matic
4-Wheel Drive
2.0 L, 4 cyl, turboAutomatic 9-spdPremium Gasoline23 / 32 / 26
C300 4matic
4-Wheel Drive
2.0 L, 4 cyl, turboAutomatic 9-spdPremium Gasoline22 / 30 / 25
C350e
Rear-Wheel Drive
2.0 L, 4 cyl, turboAutomatic 7-spdPremium Gasoline or Electricity
9 miles on electricity, 410 miles in all
28 / 32 / 30 on gasoline
51 MPGe on electricity

Sources and dates

Fuel cost: EPA mpg with fuel prices for the week of Oct 12, 2026 and electricity prices for Jul 2026. Source: U.S. Energy Information Administration (Oct 2026). Complaints are unverified reports owners filed with NHTSA. About the data