Dacia · 2008–2026
Common Dacia Sandero problems, and how to check them
These are the 3 faults owners and garages report most often on the Dacia Sandero, from the most common down. For each one: what goes wrong, how to check it yourself, and the usual fix, so you know what you’re dealing with before you buy parts.
Fact-checked by a licensed car technician · last reviewed 27 September 2026
Problem 1
Dacia Sandero: Blocked DPF on the 1.5 dCi used for short trips
What goes wrong
Short trips never let the particulate filter regenerate.
How to check it yourself
Read the DPF soot load and pressure in live data.
The usual fix
Regenerate with a motorway drive or a forced regeneration; clean or replace a filter that stays blocked.
Signs: Loss of power, Check engine light
Fault codes: P2002, P2463, P2452
Problem 2
Dacia Sandero: Coolant leak from the thermostat housing, later timing chain stretch
What goes wrong
The plastic thermostat housing leaks, and at higher mileage the timing chain can stretch.
How to check it yourself
Look for coolant residue around the thermostat housing; listen for a chain rattle at a cold start.
The usual fix
Replace the thermostat housing; replace the chain kit if it rattles or cam/crank codes appear.
Signs: Coolant loss, Engine overheating, Rattle on cold start
Fault codes: P0128, P0016
Problem 3
Dacia Sandero: Misfire or lean running from coils or the lambda sensor
What goes wrong
Ignition coils and lambda sensors are common wear items on the Sandero’s petrol engines.
How to check it yourself
Swap the coil of the misfiring cylinder to see if the misfire follows it; check the lambda sensor’s switching in live data.
The usual fix
Replace the faulty coil or lambda sensor. Fix misfires before a catalyst code (P0420) turns into a damaged catalyst.
Signs: Misfire under load, Rough idle, Check engine light, Poor fuel economy
Fault codes: P0300, P0171, P0420, P0130
General guidance, not a professional inspection. Confirm faults with measurements before buying parts, and use a qualified mechanic for brakes, steering, fuel leaks, airbags, and other safety-critical work. Terms and disclaimer