2018 Mercedes-Benz C 350 E Problems, Complaints & Recalls

Source: NHTSA · Updated Dec 18, 2023 · 2 owner complaints analyzed

Compared with other C 350 E years
Not enough data 3rd of 5 for complaints
NHTSA crash rating
Not rated

Owners have filed 2 complaints with NHTSA about the 2018 Mercedes-Benz C 350 E. That ranks 3rd out of 5 C 350 E model years for complaints. The most reported problem area is engine (2 complaints, 100%). There are 5 safety recalls covering this model year. NHTSA has opened 3 defect investigations involving it.

Complaints are unverified owner reports and are not adjusted for sales volume.

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Most common 2018 Mercedes-Benz C 350 E problems

Complaints grouped by the part of the car owners reported, with the median mileage when the problem happened.

Engine2
Power Train1
Problem areaComplaintsShareMedian milesOwners mention mostTypical repair cost
Engine2100%———
Power Train150%———

One complaint can list several problem areas, so shares can add up to more than 100%.

Complaints by year received

Peak: 2022, with 1 complaints
2022: 1202212023: 120231

n = 2 complaints · Source: NHTSA

2018 Mercedes-Benz C 350 E recalls (5)

Tap a recall to see the problem, the risk and the fix.

Structure:body:roof and pillarsDec 15, 2023 · NHTSA campaign 23V854000 · 2,976 vehicles

Problem: 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.

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. Owners may contact MBUSA customer service at 1-800-367-6372. This recall is an expansion of NHTSA recall number 21V-197.

Structure:body:roof and pillarsMar 19, 2021 · NHTSA campaign 21V197000 · 15,096 vehicles

Problem: 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.

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. Owners may contact MBUSA customer service at 1-800-367-6372.

Communication: auto crash notification; electrical system:softwareFeb 5, 2021 · NHTSA campaign 21V058000 · 1,292,258 vehicles

Problem: 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.

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

Steering:rack and pinion:rackNov 29, 2018 · NHTSA campaign 18V850000 · 6,373 vehicles

Problem: 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.

Fix: 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.

Air bags:sensor:occupant classificationNov 27, 2018 · NHTSA campaign 18V838000 · 104,663 vehicles

Problem: 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.

Fix: 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.

To see whether a specific car still has an open recall, enter its VIN on NHTSA's official recall lookup. You can also decode a VIN here.

NHTSA defect investigations

  • Desiccated Air Bag Inflator Rupture (EA21002) — opened Sep 17, 2021, still open.
  • Pedestrian alert sounds (DP22005) — opened Jan 27, 2023, closed Aug 7, 2023, led to recall 22V063000.
  • Front Roof Panel Detachment (PE21001) — opened Jan 8, 2021, closed Oct 14, 2021, led to recall 21V197000.

Recent owner reports

Short excerpts of the latest complaints filed with NHTSA, with personal details removed. Full reports can be searched on NHTSA.gov.

Engine light came on, checked with diagnostic machine shows a crank shaft issue. I have maintained the car with regular checks and maintenance. This has to be a defective part.

Engine · received Sep 15, 2023 · NHTSA complaint 11544819

Engine light ON with DTC code P052E

Engine · received Jul 30, 2022 · NHTSA complaint 11476706

Other Mercedes-Benz C 350 E years

← 2017 C 350 E · 2019 C 350 E →

YearComplaintsRecalls
2020 C 350 E02
2019 C 350 E02
201825
2017 C 350 E54
2016 C 350 E65

See all Mercedes-Benz C 350 E problems by year, every Mercedes-Benz model, or the Mercedes-Benz VIN decoder.

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Frequently asked questions

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

Owners most often report engine, power train problems. The top one, engine, accounts for 2 complaints.

Was there a recall on the 2018 Mercedes-Benz C 350 E?

Yes, 5 safety recalls. Enter your VIN at NHTSA.gov to check whether the repairs were done on your car.

Was the 2018 Mercedes-Benz C 350 E a good year?

Complaint data can't fully answer that, because counts aren't adjusted for sales. Compared with other C 350 E model years, the 2018 has too little data to compare. Always get a pre-purchase inspection and check the VIN for open recalls.