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Electrical systemPart report

2019 Mercedes-Benz C300 Electrical system Problems

Complaints
13about this part
Share
19%of 69 total for the year
Median mileage
31,002miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 13 complaints about the electrical system of the 2019 Mercedes-Benz C300, 19% of the 69 complaints for this model year. Where a mileage was given, the median is 31,002 miles. 4 recall campaigns on record are filed under a similar system.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“Odometer Fraud. The contact purchased a 2019 Mercedes-Benz C300. The contact stated that after purchasing the vehicle, it was discovered that there was a mileage discrepancy. The vehicle was a dealer sale. The contact stated that at the time of purchase, the odometer reading was approximately 54,000 miles. At the time of registration, the mileage was approximately 54,000 miles, and the same mileage was also reflected on the Carfax report. …”

NHTSA complaint #11716768, filed 2026-02, 54,000 miles

“The vehicle experienced a severe safety issue involving a sudden loss of motive power in active traffic. 1. Initial Symptoms & Diagnosis: Recently, the Check Engine Light illuminated. Although the light turned off before my scheduled appointment, I still brought the vehicle to an authorized Mercedes-Benz dealership for a safety inspection. 2. Dealer Confirmation: The dealership inspected the vehicle and diagnosed an internal electrical fault with the engine oil control valve and harness. They recommended replacing the parts. …”

NHTSA complaint #11764481, filed 2026-09

“The automatic trunk lid started to close and hit my head while I was loading groceries into the trunk. It also started to close and hit my wife in the head when she was unloading the groceries about 15 minutes later. This situation was not reproduced or confirmed by a dealer or independent service center. There was no notice or warning of pending failure. There appeared to be no visible injury to either person except for a short pain in the head.”

NHTSA complaint #11432020, filed 2021-09

“I am writing to formally report an ongoing issue and safety concern with my vehicle. Since the day I purchased the car, I have experienced numerous mechanical problems and have spent a significant amount of money on repairs. In August, I had to take my vehicle to a local repair shop three times due to persistent issues. The car was also towed by AAA three separate times for safety reasons. My main concern is that the vehicle hesitates during acceleration and feels sluggish while driving, which creates a serious safety risk on the road. …”

NHTSA complaint #11691362, filed 2025-10

“Dear friends, I have received a safety recall message and contacted to my car dealership. Despite I called few times to different Mercedes my dealership (Mercedes DTLA, Mercedes Corporate office) the recall issue has not been fixed. It has been 3 months since I am calling them and requesting to fix the recall as I am psychologically uncomfortable when I have recalls in my car. Unfortunately, recall on my car has not been fixed and they are not able to give me any answer when this issue will be fixed. …”

NHTSA complaint #11419977, filed 2021-06

Related recalls

Related service bulletins

Electrical system: other model years

YearComplaintsShare of year
2024436%
2023523%
2022728%
202117%
202039%
20191319%
20181010%
20173114%
20163211%
20155013%
2014910%
2013197%
2012124%
2011439%
20108419%
200919834%
200822834%

Other parts of the 2019 Mercedes-Benz C300

Engine
17 complaintsFuel system
12 complaintsOther or unknown
10 complaintsBody and structure
7 complaintsBrakes
6 complaintsTransmission and drivetrain
6 complaintsSeat belts
5 complaintsSteering
5 complaintsBack-over prevention (rear camera)
3 complaintsForward collision avoidance
3 complaintsVehicle speed control
3 complaintsAir bags
1 complaints

← All problems reported for the 2019 Mercedes-Benz C300

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology