KNOWN FAULTS · Opel

Opel Adam common problems.

2012–2019 · Petrol

Sources are not verified in real time and no entry confirms that your car is affected.

3 known faults with sources

Engines: 1.2 / 1.4 (Petrol)

Ecotec 1.0–1.4 timing chainValve timing

Engine / equipment: Naturally aspirated 1.0, 1.2 and 1.4 Ecotec (Z10XEP, Z12XEP, Z14XEP, A12XER, A14XER): Corsa C, D and E, Adam, Astra H and J, Meriva A and B, Tigra TwinTop
Period mentioned: 2003–2019
Symptoms: Engine rattle, especially on start-up, power loss and misfires (P0300 to P0304).
Possible cause described: The timing chain stretches on these naturally aspirated engines. On the 2004–2010 Astra H the same symptoms can come from camshaft bearing blocks tightened to too low a torque at the factory; cars already corrected have a yellow mark on the timing cover.
Check for the garage: Listen to a cold start, read misfire codes, look for the yellow mark on the timing cover (Astra H) and check chain stretch.
Cost cited in the source: Chain: approx. €650–1,400 (converted from dollars); re-torquing the bearing blocks: far lessA rough figure from the original database, not an up-to-date quote.

Engines: 1.2 / 1.4 (Petrol) · 1.0 Turbo (Petrol)

Applies if: Built from 2007 to 2017; affects every version.

The heater fan stops blowing because of overheated connectors (Corsa D and E, Adam)Climate control

Engine / equipment: Opel Corsa D and E and Opel Adam (all versions: it is a cabin part)
Period mentioned: 2007–2017
Symptoms: The cabin fan (heating and air conditioning) stops blowing; before that it may work on and off or only on some speeds.
Possible cause described: According to L'argus (August 2019), the fan motor connectors overheat and the motor ends up failing. Opel recognised it as a technical defect and contributed to the repair up to 15 years, with no mileage limit.
Check for the garage: Check the fan motor connector and its resistor (behind the glovebox, in the front passenger footwell) for burnt or deformed plastic; check whether the motor gets voltage. If the motor is replaced, also replace the damaged connector and ask Opel about contributing to the cost.
Cost cited in the source: Opel contributed to the cost up to 15 years, with no mileage limit (in France, 2019).A rough figure from the original database, not an up-to-date quote.

Engines: 1.0 Turbo (Petrol)

Applies if: Only Adam built 2013–2018 with the brake switch described by HELLA; in this row only 1.0 Turbo sub-versions built from 2014 to 2018.

Adam brake lights permanently onElectrical and electronic systems

Engine / equipment: Only configurations, equipment and VINs included in the documented assignments.
Period mentioned: Bulletin-specific period and equipment stated in each assignment.
Symptoms: The source describes the risk stated under cause; it does not document DTCs or additional advance symptoms.
Possible cause described: The brake switch may be incorrectly adjusted or positioned.
Check for the garage: Check switch operation and position; adjust or replace and review ABS fault memory.
Cost cited in the source: No verifiable estimate; request a diagnostic and repair quotation.A rough figure from the original database, not an up-to-date quote.