IsItAGoodCar

Common Problems with the
2012–2018 Mercedes-Benz A-Class (W176)

We've identified 2 known issues that can affect the 2012–2018 Mercedes-Benz A-Class (W176). None are considered critical, but they're worth knowing about before you buy.

2
Known Issues
0
Serious
2
Moderate
0
Minor

All Known Issues

OM651 Diesel Chain Tensioner Oil Leak

ModerateEngine

The timing chain tensioner gasket is a common leak point. If ignored, the loss of oil pressure can lead to timing chain stretch or failure.

Most affected: A 200 d, A 220 d

Estimated cost: £200–£500Affects: 2012–2018Often appears around: 50,000–90,000 miles

Typical symptoms

  • •Oil leak on the right side of the engine block
  • •Burning oil smell
  • •Rattle on cold start

What to inspect before you buy

  • ✓Inspect the area around the tensioner for fresh oil
  • ✓Listen for chain rattle during a cold start

DCT gearbox judder and clutch wear

ModerateGearbox & Transmission

The 7-speed dual-clutch automatic can be jerky, especially in stop-start driving.

Estimated cost: £500–£1,800Affects: 2012–2018

Typical symptoms

  • •Shudder moving off
  • •Hesitation selecting reverse

What to inspect before you buy

  • ✓Crawl in traffic
  • ✓Try repeated parking manoeuvres

Buying Tips for the 2012 Mercedes-Benz A-Class (W176)

  • ✓Check the DCT gearbox from stone cold and in traffic.
  • ✓Diesel buyers should look for NOx-sensor and AdBlue history.
  • ✓Inspect the boot floor for dampness.

Browse 2012–2018 Mercedes-Benz A-Class (W176) in our Directory

View MOT history, registration data, and reliability scores for 2012–2018 Mercedes-Benz A-Class (W176) vehicles.

View 2012–2018 Directory

Other Mercedes-Benz A-Class (W176) Year Periods

2012–2018

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