Dacia Sandero / Logan Quiz
Practical advice

Malfunctions

In this manual: Practical advice
Driving the vehicle — 28Practical advice — 25Vehicle operation — 16Getting to know your vehicle — 55Driving comfort — 26Technical data — 8Four-door version — 1Four-door version (continued) — 1Five-door version — 1Estate version — 1Five-door version and estate version (continued) — 1Four- and five-door version — 1Estate version — 1
~3min read

The following recommendations will allow you to temporarily resolve faults quickly; for safety reasons, contact an Authorised Partner of the brand as soon as possible.

When trying to start the engine

POSSIBLE CAUSES

WHAT TO DO
Warning lights are dim or off, starter motor does not operate. Battery terminals are loose, disconnected or corroded. Tighten or reconnect them, or clean them if corroded.
Battery flat or faulty. Connect a charged battery in place of the flat one. See the section "Battery: what to do in an emergency" in chapter 5 or, if necessary, replace the battery.

Do not push the vehicle if the steering column is locked.
The engine cannot be started. Conditions required for starting not met. See the section "Starting/stopping the engine" in chapter 2.
The steering column is locked. Steering lock. To unlock, gently turn the key in the ignition switch while moving the steering wheel (see the section "Ignition switch" in chapter 2).
Vibrations. Underinflated or damaged tyres, unbalanced wheels. Check the tyre pressures. If incorrect pressure is not the cause, have the tyres checked by an Authorised Partner of the brand.
Coolant boiling in the expansion tank. Mechanical fault: cylinder head gasket failure, cooling system pump failure. Switch off the engine.

Contact an Authorised Partner of the brand.
Radiator fan failure. Contact an Authorised Partner of the brand.
Smoke coming from under the engine bonnet. Short circuit or leak in the cooling system. Stop the vehicle, switch off the ignition, move away from the vehicle and contact an Authorised Partner of the brand.
The oil pressure warning light comes on: when cornering or braking Oil level is too low. Top up the engine oil (see the section "Engine oil level: topping up, filling the system" in chapter 4).
at idle Oil pressure too low. Go to the nearest Authorised Partner of the brand.
The oil pressure warning light goes out late or stays on when accelerating Incorrect oil pressure Stop and contact an Approved Dacia Dealer.
Abnormal white smoke from the exhaust Mechanical fault: cylinder head gasket failure or Switch off the engine.

Contact an Authorised Partner of the brand.
This is not necessarily a sign of a fault. The smoke is produced during regeneration of the particulate filter. See section "Specific features of diesel engine versions" in chapter 2.
Difficulty turning the steering wheel Broken drive belt. Have the V-belt replaced.
No fluid in the power steering system To carry out any work on the power steering system, contact an Approved Dacia Dealer.
Whistling Roof antenna incorrectly positioned. Adjust the antenna.
The engine is overheating. The coolant temperature warning light comes on. Radiator fan failure. Stop, switch off the engine and contact an Approved Dacia Dealer
Coolant leak. Stop the vehicle, switch off the engine and check the coolant reservoir: it should contain coolant. If there is no coolant, contact an Approved Dacia Dealer as soon as possible.
The oil change warning light stays on after the oil has been changed The warning data was not reset after the engine oil was changed. Reset the warning data after changing the engine oil, see section "On-board computer" in chapter 1.
The wipers do not work. Wiper blades stuck to the windscreen. Free the front wiper blades before switching on the wipers.
Faulty electrical system. Contact an Authorised Dacia Partner.
The wipers cannot be switched off. Faulty electrical controls. Contact an Authorised Dacia Partner.
Indicators flash faster than normal. Blown bulb. Replace the bulb.
The indicators do not work. Faulty electrical system Contact an Authorised Dacia Partner.
The headlights cannot be switched on or off. Faulty electrical system or control. Contact an Authorised Dacia Partner.
Condensation inside the headlights. This is not a sign of a fault. Condensation inside the headlights is a natural effect of temperature changes.

It disappears shortly after the headlights are switched on.
Radiator: In case of significant coolant loss, never top up with cold coolant while the engine is hot. After any repair where the coolant has been drained, even partially, refill the cooling system with new coolant to the correct level. Only use products approved by our Technical Departments.

Test yourself

A quick Dacia Sandero / Logan quiz: every answer comes with an explanation and a link to the manual page.