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Data source: National Highway Traffic Safety Administration

  1. Home
  2. >Mercedes-Benz
  3. >CLA-Class
  4. >2018
  5. >Engine

2018 Mercedes-Benz CLA-Class Engine Problems

Engine complaints and recalls from NHTSA

Summary

The 2018 Mercedes-Benz CLA-Class has 5 NHTSA engine complaints and 0 engine-related recalls.

Problem Areas for the 2018 Mercedes-Benz CLA-Class

Electrical
10
Airbags
6
Other
6
Engine
5
Structure
5
Powertrain
4

5

Complaints

0

Recalls

0

Injuries Reported

Data source: National Highway Traffic Safety Administration (NHTSA) · Last updated April 9, 2026

All Engine Complaints

Date ↓ComponentSummary
Dec 24, 2025ENGINECorrosion of the fuel system (on a Flex Fuel rated vehicle that had used E85 blend regularly) causin...
Aug 10, 2025ENGINEP052E Check Engine light on. Same part is defective on other models that use the same parts. My car ...
Nov 18, 2024ENGINECheck engine code PO52E - Positive Crankcase Ventilation regulator valve performance. Needs to be r...
Jul 1, 2022ENGINE AND ENGINE COOLING,FUEL SYSTEM, GASOLINE,ENGINEThe contact owns a 2018 Mercedes-Benz CLA250. The contact stated that coolant was leaking from the e...
Sep 25, 2017ENGINEAS I ACCELERATED OUT OF A LEFT TURN, THE ENGINE SUDDENLY SHUT OFF, THE TRANSMISSION SHIFTED INTO NEU...

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2018 Mercedes-Benz CLA-Class Full Report→All Mercedes-Benz Models→