2018 Mercedes-Benz CLA250 Engine cooling Problems
- Complaints
- 1about this part
- Share
- 2%of 41 total for the year
- Median mileage
- 118,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the engine cooling of the 2018 Mercedes-Benz CLA250, 2% of the 41 complaints for this model year. Where a mileage was given, the median is 118,000 miles.
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.
“The contact owns a 2018 Mercedes-Benz CLA250. The contact stated that coolant was leaking from the engine with the check engine warning light illuminated. The vehicle was taken to an independent mechanic where the mechanic replaced the coolant reservoir cap. Several months later, the warning light re-appeared, and the contact topped off the coolant level and the warning light disappeared. Recently, the check engine warning light illuminated and took the vehicle back to the independent mechanic. …”
NHTSA complaint #11531259, filed 2023-07, 118,000 milesRelated service bulletins
- 10246281Nov 17, 2023Fault code P06DA00 is found current or stored in engine control unit. Check engine light may be activated. Various causes Up to Model year 2018 Fault code P06DA00 can be…
- 10206077Dec 8, 2021"MY15+ M278 and M157 Equipped Vehicles with Fault Code ""P023400 â Boost Pressure is Too High"" "
- 10189400Feb 11, 2021Mercedes-Benz AG (?MBAG?), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year 2018-2019 C and E-Class vehicles (205/238 platforms), an…
- 10205154Aug 5, 2016Gasket may settle causing a slight oil leak.
- 10165845Jul 1, 2014Vehicle rocks or lurches once after sitting in park with engine running for roughly 10 minutes
- 10167495Mar 24, 2014Coolant warning message in the instrument cluster although the coolant level is OK
- 10167492Mar 21, 2014Engine diagnosis warning lamp active - check engine light (CEL) on. The fault code P052E71 is logged in the fault memory of the engine control unit.
- 10167511Mar 7, 2014Engine diagnosis warning lamp is active. One or more of the faults listed under 'Control unit / Fault code' relating to the throttle valve actuator (M16/6) and/or oxygen sensor…
Engine cooling: other model years
Other parts of the 2018 Mercedes-Benz CLA250
10 complaintsOther or unknown
10 complaintsAir bags
8 complaintsEngine
6 complaintsBody and structure
6 complaintsFuel system
3 complaintsSeats
2 complaintsSteering
2 complaintsTransmission and drivetrain
2 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 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