2018 Mercedes-Benz CLA250 Other or unknown Problems
- Complaints
- 10about this part
- Share
- 24%of 41 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 10 complaints about the other or unknown of the 2018 Mercedes-Benz CLA250, 24% of the 41 complaints for this model year. 1 a fire, according to the filers.
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.
“I am driving around 55K miles in this car, and my check engine light comes up. I head to a local place to get a code check. The guy looks it up and tells me this is pretty much with EVERY Mercedes CLA around that mile point.. So, I look up on reddit and other forums, and it's exactly what he said. Pretty much the PCV valve is faulty and costs around $1800-2500 to fix after 50-60K miles which causes emission problems and other safety concerns if not taken care of. It makes no sense how this is not a recall. …”
NHTSA complaint #11622361, filed 2024-10“SOS e call not activated and I’ve called Mercedes numerous times. They can’t get the car to respond they say it’s a communication error on their end however the dealership wants to charge me $300+ to update the software when it’s their issue. Also 2 months before I purchased this car I noticed not only was this one of the recall issues that the dealership supposedly fixed. But from the beginning this vehicle has had nothing but issues. I shouldn’t have to pay out of my pocket for the manufacturer. …”
NHTSA complaint #11504315, filed 2023-01“My car randomly caught on fire, it was parked in my apartment garage for a week while I was out of town. I came back to use my car and my car remote wasn’t unlocking the car so i unlocked it manually. When I opened the car it wreaked of smoke, the windows were covered in soot, the visors were bubbled up, the passenger seat had a chunk missing. It was investigated by a car shop for My insurance and the car shop Said they felt like the fire started from the wires under the passenger seat. Of course it was deemed a total loss and now I’m out of car. I hadn’t even had the car a year.”
NHTSA complaint #11521136, filed 2023-05“Back up camera stop working. Putting gear on reverse does not prompt the camera screen. Called Dealer if there is a recall. No recall for this issue and not covered. Read online article that 2018 CLA 250 are effected by this software error(issue). Want to get it fixed because this is a safety issue.”
NHTSA complaint #11475317, filed 2022-07“Roof Panel flew off on highway, not safe for anyone if this happens can cause accidents. It is available for inspection. This incident has happened to other cars of my same make and model and has been confirmed.”
NHTSA complaint #11770991, filed 2026-10Related service bulletins
- 11028809Feb 13, 2026Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the TIREFIT sealant bottle may not meet specifications. The…
- 10205841Sep 24, 2021Spare wheel.
- 10179966Jul 31, 2020Incorrect time and/or instrument cluster message "SOS, service not activated" and/or Mercedes Me connect services nonfunctional
- 10171615Jan 2, 2020Clock in the instrument cluster stops
- 10205156Aug 26, 2016Intial startup not possible after replacement of transmisson 725.0 or of electrohydraulic controller unit.
- 10205154Aug 5, 2016Gasket may settle causing a slight oil leak.
- 10205200Jul 15, 2013Parktronic inoperable.
Other or unknown: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2023 | 3 | 50% |
| 2021 | 2 | 29% |
| 2020 | 4 | 20% |
| 2019 | 5 | 22% |
| 2018 | 10 | 24% |
| 2017 | 4 | 14% |
| 2016 | 20 | 30% |
| 2015 | 17 | 28% |
| 2014 | 22 | 12% |
Other parts of the 2018 Mercedes-Benz CLA250
10 complaintsAir bags
8 complaintsEngine
6 complaintsBody and structure
6 complaintsFuel system
3 complaintsSeats
2 complaintsSteering
2 complaintsTransmission and drivetrain
2 complaintsEngine cooling
1 complaintsLane departure
1 complaintsSuspension
1 complaintsVisibility (wipers, defrost, mirrors)
1 complaints
← All problems reported for the 2018 Mercedes-Benz CLA250
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Nov 1, 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