Mercedes-Benz Clase A (W176) A 200 / 220 d (2.1, OM651): known faults of the engine according to L'argus

Engine / equipment

A 200 / 220 d (2.1, OM651) in the Mercedes-Benz Clase A (W176)

Period mentioned

2012–2018

Symptoms

Coolant leak; Engine warning light on; Coolant level warning message; Loss of power (up to 06/12/2012); Accessory belt noise (up to 13/01/2013); Noise after starting the engine; Stop & Start not working (from September 2015 to August 2016); Will not start, battery flat (up to September 2017)

Possible cause described

According to the brand's technical notes reported by L'argus (each date shows up to when the affected cars were built): 1) Coolant leak: Radiator union and seal. 2) Engine warning light on: Particulate filter check or replacement. 3) Coolant level warning message: EGR valve seal to be replaced. 4) Loss of power (up to 06/12/2012): Differential pressure sensor wiring harness. 5) Engine warning light on: EGR valve or back-pressure sensor (up to June 2013). 6) Accessory belt noise (up to 13/01/2013): Belt to be replaced. 7) Noise after starting the engine: Timing chain tensioner and/or chain depending on stretch (± 82 mm). 8) Stop & Start not working (from September 2015 to August 2016): Battery. 9) Will not start, battery flat (up to September 2017): Reprogramming.

Check for the garage

Compare your symptom and your car's build date with this list. If they match, tell the workshop and ask them to check that part first before replacing others. The brand or a warranty extension covers some repairs: ask the dealer with the car's details.

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.

Sources from the original database