2018 Mercedes-Benz C-Class Mercedes-Benz C-Class 2018

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2018 Mercedes-Benz C-Class 4dr Sedan

turbocharged 241hp 2.0L I4 9-speed shiftable automatic RWD

Mercedes-Benz C-Class in Texas, United States
Nov 2017 - Jul 2018
Jul 2018

5400 mi
Wind noise fixed by installed Acoustic glass in front windows. 

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2017 Mercedes-Benz C-Class 4dr Sedan

turbocharged 503hp 4.0L V8 7-speed shiftable automatic RWD

Mercedes-Benz C-Class in Texas, United States
Apr 2018 - May 2019
Sep 2018

13000 mi
Warning light indicated failure of limited slip differential. Dealer reset with new software and indicated the matter was a "bad sender". 
May 2019

21000 mi
Ignition coil failure. Diagnosed after prior dealer diagnostic errors. Coil replaced under warranty. 

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2017 Mercedes-Benz C-Class 4dr Sedan

turbocharged 362hp 3.0L V6 9-speed shiftable automatic AWD

Mercedes-Benz C-Class in Newfoundland / Lab., Canada
Nov 2017 - Jun 2018
May 2018

8060 mi
Air bag recall 
Mercedes-Benz C-Class in Rhode Island, United States
Nov 2017 - Jun 2018
Aug 2017

4000 mi
Flat screen monitor for nav, radio, and other amenities went completely blank and would not display anything. The monitor was replaced under warranty. 

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2017 Mercedes-Benz C-Class 4dr Sedan

turbocharged 241hp 2.0L I4 7-speed shiftable automatic RWD

Mercedes-Benz C-Class in Greece
Nov 2017 - Jun 2018
Jun 2018

6200 mi
Noise (slight rattling) from driver's seat & passenger door. Tried lubricating the seat and tightening the door -- but no cigar. It is not too distracting, however. 
Mercedes-Benz C-Class in California, United States
Nov 2017 - Jun 2018
Mar 2017

6 mi
speaker rattle 

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2017 Mercedes-Benz C-Class 4dr Sedan

Mercedes-Benz C-Class in Arizona, United States
Jul 2018 - Aug 2018
Aug 2018

11000 mi

US $500
Low profile run flat tire got a flat. They say I hit a hole (I don't remember that). Run flat tire but impossible to get one quickly. Replace with non-run flat tires. 

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2016 Mercedes-Benz C-Class 4dr Sedan

turbocharged 503hp 4.0L V8 7-speed shiftable automatic RWD

Mercedes-Benz C-Class in Hawaii, United States
Oct 2015 - Oct 2017
Mar 2016

4000 mi
Steering column had to be replaced. Steering column adjustment motor failed, Dealer also found "other" problems in steering column. Cabin panels rattles creaks "excessively" according to tech. From Dash, door, A pillar , Instrument guage cluster cowl, middle control stack. Repairs were done dealer said it would be a work in progress. Most noises is better but some remain 
Jun 2016

8000 mi
COMAND Display is rattling. Various cab rattles. COMAND DIsplay still rattels others have subsided 
Jul 2017

20000 mi
The vehicle is still in the shop and they have not been able to figure out the cause of the pull in the suspension nor the metallic ticking noise in the suspension when driving or turning. Update: The suspension was repaired. Suspension had numerous issues root cause was a failed wheel bearing caused numerous items to fail.  Various Rattles noises on inside of cab. Update: rear deck is rattling again. Rocker panel trim passenger side falling off Smell from A/C. Got worse. 
Mercedes-Benz C-Class in New York, United States
Nov 2016 - Jun 2018
Dec 2017

1000 mi

US $480
faulty battery . battery was replaced. replaced rear trunk spoiler. TSB on relays in fuse box in trunk. check to make sure relays are mounted and secured correctly. 
Mercedes-Benz C-Class in Texas, United States
Nov 2015 - Jun 2018
Jun 2018

22000 mi
Recall for faulty ignition coils 

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2016 Mercedes-Benz C-Class 4dr Sedan

turbocharged 362hp 3.0L V6 7-speed shiftable automatic AWD

Mercedes-Benz C-Class in New Jersey, United States
Jun 2016 - Apr 2018
Jun 2017

23000 mi
Exhaust sensor replaced 
Dec 2017

27000 mi
Recall on fuse having to get added to prevent a fire Transmission shifted poorly in low gears 
Apr 2018

29000 mi
Mbrace system stopped working. Had to be reprogrammed. 
Mercedes-Benz C-Class in Ontario, Canada
May 2016 - Dec 2018
Jun 2017

9300 mi
Jerking when starting from a stop. Dealer updated transmission software. 
Mercedes-Benz C-Class in New York, United States
Mar 2016 - Jun 2018
Nov 2017

8000 mi
Panoramic Sunroof was rattling. Repaired under warranty. 
Mercedes-Benz C-Class in New York, United States
Apr 2016 - Jun 2018
Dec 2016

9000 mi
Oil leak with transaxle 

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2016 Mercedes-Benz C-Class 4dr Sedan

turbocharged 241hp 2.0L I4 7-speed shiftable automatic RWD

Mercedes-Benz C-Class in California, United States
May 2016 - Jun 2018
Mar 2018

30000 mi
2nd time we had to replace the front rotors and pads within 30,000 miles. Both times replaced under factory or parts warranty. 
Mercedes-Benz C-Class in Tennessee, United States
Nov 2016 - Jul 2018
Apr 2017

14000 mi
Went for several issues- wind noise drivers side, recall electrical. No repairs made as parts had to be ordered. LED light out in outside door handle. 
Jul 2018

28000 mi
Auxiliary battery malfunction. 
Mercedes-Benz C-Class in California, United States
Jan 2016 - Jun 2018
Jul 2017

12000 mi
Trunk lid drive detached from body 
Mercedes-Benz C-Class in Nevada, United States
Jun 2016 - Jun 2018
Dec 2017

13000 mi

US $1500
Worn suspension parts, ones that should not have worn in so few miles 
Mercedes-Benz C-Class in Florida, United States
Nov 2015 - Oct 2018
Dec 2015

2000 mi
Check engine light on. Code set for Evap Purge Solenoid. Code could not be duplicated. Erased code. 
Oct 2018

18039 mi
Drivers window would not stay closed. 
Mercedes-Benz C-Class in California, United States
Nov 2015 - Jun 2018
Apr 2016

2300 mi
Glove box rattled constantly - entire assembly replaced. 
Nov 2016

8700 mi
Right rear Airmatic shock valve failure. Ride height maintained, but shock locked into extremely firm setting. 
Jan 2017

10700 mi
Rear LED door handle light burned out - replaced. 
Mar 2017

12000 mi
Airmatic system failed, stopped responding to mode adjustments and locked into extremely firm setting. Main control system replaced. 
May 2017

14000 mi
Fourth Airmatic failure. Entire system disassembled and analyzed. Discovered bent/damaged connectors leading to main Airmatic Control Module, believed to have been the result of manufacturing problem. Connectors replaced. 
Dec 2017

18000 mi
Fuel line leading to high pressure fuel pump split, causing fuel to slowly seep into the engine bay and resulting in a strong smell of gasoline. 
Jun 2018

23000 mi
Center console trim cracked/tore - replaced under warranty. 

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2016 Mercedes-Benz C-Class 4dr Sedan

turbocharged 241hp 2.0L I4 7-speed shiftable automatic AWD

Mercedes-Benz C-Class in Ontario, Canada
Jul 2015 - Jun 2018
Aug 2016

7440 mi
Periodic rough shifting between 2nd and 3rd and sometimes 3rd to 4th. Couldn't be reproduced by technicians. 
Oct 2016

9080 mi
Rough shifting from 2nd to 3rd and sometimes 3rd to 4th. Tested with sr tech. Noted it is a bit rough. Updated transmission software. Much better since software update. 
Mercedes-Benz C-Class in Pennsylvania, United States
Apr 2017 - Jun 2018
May 2017

10000 mi
MB is going semi-autonomous - repairs don't necessarily fit into standard categories - and in fact crosses over several systems. Seriously need to consider a new category - this is the future and it's problematic. 360 degree camera control was replaced (but improperly aligned). It interact with Lane Keeping Assist, Steering Assist, Braking and I have no idea what else . Driver assist systems quit when this fails Another increasingly common system that's difficult to classify. The Eco Start/Stop system quit working as designed. It has essentially working backwards, functioning when unexpected, not functioning when anticipated. Dealer couldn't find issue, so said it was fine. Hasn't worked once in two months - even though all known parameters have been met - engine at operating temp, passenger compartment st set temps, fully charged (hopefully after 100+ miles) but no longer working. Dealer seems beyond their depth with these systems so to save frustration I've decided to just pretend I don't have the features 
Nov 2017

14000 mi
Another attempt to repair the Steering Assist function of the Distronic Cruise Control, and Start Stop. Dealer assured me not that all was well, but that it was good as it was going to get. Left dealer, engaged the Steering Assist, and cruised right off the side of the road. Appearently self driving is farther off than we might think. With lowered expectations I bought a second Mercedes, but didn't go for the Distronic System, a must have option if it worked. That problem solved, the new car convinces me that the start/stop on the 2016 simply doesn't work, hasn't worked in months, while the new car hasn't missed a day yet. M-B gets it in their mind that something works fine there's nothing a customer can say or do to change their mind. 

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2015 Mercedes-Benz C-Class 4dr Wagon

turbocharged 241hp 2.0L I4 7-speed shiftable automatic AWD

Mercedes-Benz C-Class in Kuwait
Jun 2015 - Dec 2016
May 2016

19240 mi
I was hearing noise from front suspension above the wheel. They changed many parts in the suspension and I had to go two trips to sort it out. 

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2015 Mercedes-Benz C-Class 4dr Wagon

turbocharged 168hp 2.1L I4 Diesel 7-speed shiftable automatic RWD

Mercedes-Benz C-Class in Great Britain
Nov 2015 - Jun 2018
Mar 2016

5000 mi
Sudden strong heat and windows suddenly steamed up. Updated system software and seems to have been solved 
Jun 2016

8000 mi
March 2016 AC fault not fixed. Much testing done to replicate issue and various sensors replaced. Mercedes consulted on readings and adjustments made. The day after I got the car back the problem reoccurred so rebooked for more work soon. Still having an intermittent problem with AC. Keeps cutting out and if the weather is cool/damp the car steams up or if dry the interior just gets hot and stuffy. 
Aug 2016

9000 mi
Original problem still not resolved following a further visit to the dealer. Control unit, control panel, sensors all replaced but the climate control still only works intermittently - but is always perfect when it goes to the dealer! 
Oct 2016

10000 mi
Original problem finally resolved by replacement of AC compressor unit 
Mar 2017

13000 mi
LEDs in two door handles failed SOS Not Ready - emergency call system not working on Comand 
Mar 2018

22000 mi
Front offside lower suspension arm showing excessive wear 
May 2018

23000 mi
Recall to apply earth bond 

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2015 Mercedes-Benz C-Class 4dr Sedan

turbocharged 329hp 3.0L V6 7-speed shiftable automatic AWD

Mercedes-Benz C-Class in Illinois, United States
Feb 2015 - Mar 2016
Mar 2016

5000 mi
The car randomly goes into limp mode. The cause of the problem is unknown. 
Mercedes-Benz C-Class in Connecticut, United States
Feb 2015 - Jan 2016
Feb 2015

4000 mi
Drivers door LED light inoperative. Rear bumper misaligned with fender at seam. 
Jul 2015

6500 mi
Keyless-go system failed 
Aug 2015

7400 mi
Windshield washer pump failed and had to be replaced 
Jan 2016 Leaking my right rear shock (AIRMATIC) 

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2015 Mercedes-Benz C-Class 4dr Sedan

turbocharged 241hp 2.0L I4 7-speed shiftable automatic RWD

Mercedes-Benz C-Class in New York, United States
Apr 2015 - Mar 2017
Jan 2016

10800 mi
Garmin Nav screen kept going black 
Aug 2016

21400 mi
Navigation 
Mercedes-Benz C-Class in California, United States
Feb 2015 - Feb 2018
Feb 2016

10000 mi
Adjusted wiper arm twist to address blades skipping on downward stroke. 
Mercedes-Benz C-Class in California, United States
Oct 2015 - Jun 2016
Mar 2016

11000 mi
Rattle and crack noise on driver side door/dash 
May 2016

11300 mi
The rattle/clicking noise near the door jams persisted. Took it back to dealer and have it worked on. Still not fixed. 
Mercedes-Benz C-Class in New South Wales, Australia
Jan 2015 - Jan 2017
Dec 2016

22320 mi
Replaced door handles. Lighting was failing 
Mercedes-Benz C-Class in California, United States
May 2015 - Jun 2017
Dec 2016

33000 mi
Auxiliary battery in trunk replaced 
Mercedes-Benz C-Class in Georgia, United States
Mar 2015 - Apr 2018
Jun 2016

10000 mi
Torn driver seat at seam. Carpet on driver side pulling out of plastic trim needing replacement. 
Mercedes-Benz C-Class in Illinois, United States
Apr 2015 - Apr 2018
Aug 2015

3000 mi
Oxidation on door trim. Can be buffed out but keeps returning after a few weeks 
Dec 2016

17000 mi
Door handle LED bulbs failed on three doors. Dealer replaced all four 
Mar 2017

19000 mi
Keyless foot activated trunk release stopped working. Shop did a computer reset to resolve the issue 
Dec 2017

29500 mi
Motorized trunk closing system intermittently stops part way while either opening or closing. Parts had to be ordered which have not yet arrived. 
Mercedes-Benz C-Class in Washington, United States
Jul 2015 - Jun 2016
Dec 2015

2000 mi
Excessive cabin wind noise, especially with cross winds. 
Mercedes-Benz C-Class in California, United States
May 2015 - Oct 2017
Dec 2015

4000 mi
Air Fragrance not working, replaced canister. 
Mercedes-Benz C-Class in Western Australia, Australia
May 2015 - Jan 2018
May 2017

20460 mi
Experiencing wind noise. Window glass replaced with double glaze. No cost to owner 
Jan 2018

24800 mi
Clear coat on pano roof 

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2015 Mercedes-Benz C-Class 4dr Sedan

turbocharged 241hp 2.0L I4 7-speed shiftable automatic AWD

Mercedes-Benz C-Class in California, United States
Dec 2014 - Nov 2017
Jan 2015

10700 mi
auto start engine problems. car would stall randomly at lights. 
May 2015

4000 mi
speaker defective 
Jul 2016

18500 mi
Transmission very jerky between 2-4th gear randomly. Still waiting on a fix. At the shop for the 3rd time for the problem. Intermittent, could not replicate. 
Sep 2016

21000 mi
the random jerkiness of the transmission was due to a not working crankshaft sensor. 
Jan 2017

14800 mi
replaced passenger make up mirror. replaced chrome lining around drink holder. replaced several window buttons. replaced driver side lower leather as it was tearing. 
Sep 2017

34000 mi
Recall campaign. 
Mercedes-Benz C-Class in North Carolina, United States
Oct 2014 - Jun 2016
Apr 2015

2200 mi
The LED bulbs in all 4 doors have been replaced 2 times. 
Aug 2015

3000 mi
The engine has a loud ticking sound after start-up. The door panels make a squeaking sound; all 4 door panels. A repair was attempted, however, the noise remains. The finish on the wheels began to develop white spots. 
Apr 2016

15000 mi
The software for the steering needed to be updated. The vehicle model badging was coming off. 
May 2016

15000 mi
The engine makes a terrible rattling sound for about 10 minutes after ignition. 
Mercedes-Benz C-Class in New York, United States
Nov 2014 - Sep 2015
Sep 2015

10000 mi
the led light on exterior door handle went out and was successfully fixed by dealer. 
Mercedes-Benz C-Class in Pennsylvania, United States
Feb 2015 - Dec 2017
Jun 2015

5000 mi
Panoramic Sunroof got stuck. Had to replace the whole unit under warranty. 
Sep 2016

23000 mi
Engine wrist pin issue. Part replaced. sunroof shades stopped working. 
Mercedes-Benz C-Class in Minnesota, United States
Jan 2015 - Feb 2015
Jan 2015

13000 mi
Check engine light on 
Feb 2015

13000 mi
The push button start failed 
Mercedes-Benz C-Class in California, United States
Dec 2014 - Jan 2017
Jan 2015

3500 mi
on cold morning start up time, fan belt gip, gip sound for 5 minutes. Replace fan belt as describe on technical bulletin and Update to latest software for engine management. 
Mar 2016

5000 mi
1. replace engine piston wrist pin: result - engine chipping noise disappear when first startup and when going downhillrn2. replace front window glass with acoustic glass:result - no more excessive window noise. 
Mercedes-Benz C-Class in Oregon, United States
Jan 2015 - Mar 2015
Mar 2015

3000 mi
Rear bumper cover misalignment. Shop attempted to align bumper cover but did a poor job. Broke tail light assembley and had to order replacement which took two extra days. Claimed to diagnose wind noise and stated it was normal. 
Mercedes-Benz C-Class in New Jersey, United States
Jun 2015 - Feb 2018
Oct 2016

19800 mi
Wind noise from drivers side front door. They attempted to fix it but the noise is still there. 
Jan 2018

38000 mi
A valve wouldn't open because condensation was freezing. Part was replaced under warranty. 
Mercedes-Benz C-Class in New York, United States
Mar 2015 - Apr 2018
Sep 2017

11000 mi
replaced faulty crankshaft position sensor which caused missed shifts and limp home mode. The motor that adjusts steering column position on startup failing causing a grinding noise in the steering column 
Nov 2017

11690 mi
Engine low on coolant. Coolant added. No reason discovered, recall work performed. 
Mercedes-Benz C-Class in New York, United States
Feb 2016 - Jan 2017
Feb 2016

2000 mi
Faulty piston and piston rings changed front side windows, refitted the window trims and door mirrors switches not working 
Mar 2016

2000 mi
scratched 3 different locations during the last trip 
Dec 2016

4000 mi
Some kind of oily stain started to appear on the fake leather dash board 
Mercedes-Benz C-Class in New Hampshire, United States
Aug 2014 - Mar 2015
Dec 2014

2000 mi
Badly fit fuel filler door had to be replaced. 
Feb 2015

3000 mi
Defective MB-Tex material. All seat covers and headrests had to be replaced. Unfortunately, not all seat parts were replaced and problem came back, so car has to go back again. Rear bumper cover poorly fit. Had to be shimmed to line up properly with fender. Sunroof shade sagging and looks unsightly. Could not be fixed. Keyless fob sometimes not recognized by car ... either locked out of car or keyless ignition must be used with a key. 
Mercedes-Benz C-Class in Ohio, United States
Nov 2015 - Jul 2018
Jan 2016

15500 mi
Driver outside door handle LED went out 
Dec 2017

29000 mi
Rattle around sun roof. Repaired. 
Mercedes-Benz C-Class in Texas, United States
Sep 2014 - Feb 2018
Jan 2017

14300 mi
Aux battery malfunction indicator warning. Technician found problem to be an electrical fault in the park pawl capacitor, which was replaced and did fix the problem. 
Dec 2017

32000 mi
Warning message: Stop car, put into park and leave running. Repair: Replace starter battery and replace on-board electrical system battery. 
Feb 2018

33000 mi
Gasoline smell inside vehicle and in engine compartment. Fuel leak discovered by technician. Replaced the fuel line to the high pressure fuel pump. 
Mercedes-Benz C-Class in Ohio, United States
Jul 2015 - May 2018
May 2018

42000 mi

US $895
All the wheel rims were bent. All four had to be reworked at significant cost. This is a snowflake car designed to drain your wallet via maintenance costs which is why I got rid of it. It depreciated $30k in 3 years as well! 
Mercedes-Benz C-Class in Maryland, United States
Dec 2014 - Jan 2017
Jul 2015

10000 mi
rain sensing wipers did not work 
Mercedes-Benz C-Class in British Columbia, Canada
Feb 2015 - Apr 2017
Aug 2016

3500 mi
Drive side Head-Light water condensation (passenger side no water condensation)Mercedes-Benz Canada, Richmond Service Centre 13466 Verdun Place Richmond BC Canada, refused to repair saying this is normal for new head-lights! 
Mercedes-Benz C-Class in New Jersey, United States
Jul 2015 - Jul 2016
Mar 2016

30000 mi

US $500
Active Lane Keeping Assist sensor and  steering wheel motor broken. 

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2015 Mercedes-Benz C-Class 4dr Sedan

Mercedes-Benz C-Class in Great Britain
Aug 2016 - Sep 2017
Apr 2017

20469 mi
The car satnav/media system went completely. I had it fixed under the car warranty. 

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2015 Mercedes-Benz C-Class 2dr Coupe

507-horsepower 6.2L V8 7-speed shiftable automatic RWD

Mercedes-Benz C-Class in Ontario, Canada
Jul 2015 - Jun 2018
Oct 2015

5040 mi
Had some squeaks in the cabin. Had a trip with a mechanic and found it coming out of the rear cargo shelf. Fixed it by tightening the gap between two metal plates. 
Dec 2015

8680 mi

C $550
Engine light came on just one month after my last maintenance. Took a trip to dealership. Covered by warranty. Also replace a broken day-time running light. 

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2018 Mercedes-Benz C-Class Repair Histories

See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. To see how frequently 2018 Mercedes-Benz C-Class problems occur, check out our car reliability stats.

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