- Engine / equipment
- Mercedes A-Class W176 (petrol, diesel and A 45 AMG)
- Period mentioned
- 2012–2018
- Symptoms
- Chain rattle after a cold start (M270); oil leaking from the chain tensioner (OM651); cold-shift jerks from the 7G-DCT and clutch wear in traffic; on the A 45 AMG, turbos (early years) and clutch (2015–spring 2016); panoramic-roof rattles.
- Possible cause described
- Recalls: camshafts on some M270s, the tensioner seal (OM651, 2014), the AMG clutch, the passenger airbag, the starter current limiter (fire risk), the brake-servo vacuum connector, the steering-column earth and emissions software on the OM651 and OM607.
- Check for the garage
- Check every campaign by VIN (and the emissions update on diesels); listen to the chain when cold.
- Cost cited in the source
- No verified estimate; ask the garage for a quote.A rough figure from the original database, not an up-to-date quote.
KNOWN FAULT · Mercedes-Benz
M270 chain, OM651 tensioner, AMG and campaigns on the A-Class W176
Sources are not verified in real time and no entry confirms that your car is affected.
Has this happened to you?
Anonymous answer, no personal data.
Frequently asked questions
How much does it cost to repair this fault?
No verified estimate; ask the garage for a quote.
A rough figure from the original database, not an up-to-date quote.
Calculate estimateHow is it checked?
Check every campaign by VIN (and the emissions update on diesels); listen to the chain when cold.
What are the symptoms?
Chain rattle after a cold start (M270); oil leaking from the chain tensioner (OM651); cold-shift jerks from the 7G-DCT and clutch wear in traffic; on the A 45 AMG, turbos (early years) and clutch (2015–spring 2016); panoramic-roof rattles.
Which cars and years does it affect?
- Brands
- Mercedes-Benz
- Engine / equipment
- Mercedes A-Class W176 (petrol, diesel and A 45 AMG)
- Period mentioned
- 2012–2018
Taking it to a garage?
Models with this entry
- Mercedes-Benz Clase A (W176)2012–2018
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- Weak points and campaigns of the A-Class W168Mercedes-Benz
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- Campaigns and weak points of the A-Class W177Mercedes-Benz
- Vibrations, driver aids and campaigns on the B-Class W247Mercedes-Benz
- Camshafts, tensioner, high-pressure lines and campaigns on the CLA and GLA (2013–2019)Mercedes-Benz
- Suspension, rust, injection and turbos on the G-Class W463Mercedes-Benz
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