Dacia Sandero (III) 1.0 TCe (H4Dt): known faults of the engine according to L'argus

Engine / equipment

1.0 TCe (H4Dt) in the Dacia Sandero (III)

Period mentioned

2020–2026

Symptoms

Coolant leak (up to 30/06/2021); Lack of power or torque, will not start, jerking, rattling (up to 19/01/2022); OBD light, "risk of engine failure" message, stalling or hard starting (up to 26/07/2022); Lack of power, stalling and jerking caused by oil in the spark plug well (up to 24/11/2022); "Check injection" message and/or risk of engine failure (up to 21/06/2023); Loss of power or torque, shaking, flat spots when accelerating (up to 01/08/2023); Lack of power (from 16/01/2020 to 01/08/2023); Will not start and abnormal noise (H4D 470 or 480 engine) from a crankshaft manufacturing defect (up to 23/09/2023); Coolant leak and engine overheating (up to 15/05/2024); Loss of power and OBD light on (up to 01/10/2024); Coolant leak (up to 08/09/2024); Lack of power, stalling and jerking caused by coolant in the ignition coil well, on the H4D 470 and 480 (up to 05/08/2024); Metallic rattle from the engine at the turbo linkage; Battery drains (up to 29/11/2021); Particulate filter and OBD lights on, "check injection" message (up to 30/01/2023); Particulate filter light on (up to 08/03/2023); Emergency braking and ABS lights on (up to 30/04/2025)

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 (up to 30/06/2021): Water outlet housing. 2) Lack of power or torque, will not start, jerking, rattling (up to 19/01/2022): Dual-mass flywheel. 3) OBD light, "risk of engine failure" message, stalling or hard starting (up to 26/07/2022): Reprogram the injection control unit. 4) Lack of power, stalling and jerking caused by oil in the spark plug well (up to 24/11/2022): Rocker cover. 5) "Check injection" message and/or risk of engine failure (up to 21/06/2023): Rocker cover sealing and downstream oxygen sensor to be replaced. 6) Loss of power or torque, shaking, flat spots when accelerating (up to 01/08/2023): Reprogramming or boost pressure regulator valve. 7) Lack of power (from 16/01/2020 to 01/08/2023): Turbo air pipe, turbo air control valve or control unit reprogramming (on ECO-G). 8) Will not start and abnormal noise (H4D 470 or 480 engine) from a crankshaft manufacturing defect (up to 23/09/2023): Engine to be replaced. 9) Coolant leak and engine overheating (up to 15/05/2024): Turbo water inlet pipe to be replaced. 10) Loss of power and OBD light on (up to 01/10/2024): Throttle body to be replaced. 11) Coolant leak (up to 08/09/2024): Water pump. 12) Lack of power, stalling and jerking caused by coolant in the ignition coil well, on the H4D 470 and 480 (up to 05/08/2024): Engine to be replaced. 13) Metallic rattle from the engine at the turbo linkage: Turbo to be replaced, 100% covered up to 5 years or 200,000 km. 14) Battery drains (up to 29/11/2021): Reprogram the protection and switching unit. 15) Particulate filter and OBD lights on, "check injection" message (up to 30/01/2023): Upstream/downstream particulate filter temperature sensor. 16) Particulate filter light on (up to 08/03/2023): Reconnect the particulate filter differential pressure sensor. 17) Emergency braking and ABS lights on (up to 30/04/2025): Clutch pedal to be replaced.

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