KNOWN FAULTS · Dacia

Known faults for the Dacia Logan (I).

2004–2012 · Petrol / LPG / CNG / Diesel

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

4 known faults with sources

Engines: 1.4 / 1.6 MPI (K7J / K7M) (Petrol) · 1.6 16V (K4M) (Petrol) · 1.4 / 1.6 MPI GLP (LPG / CNG) · 1.5 dCi (K9K) (Diesel)

Applies if: Weak points of this model from inspections, breakdown statistics and recalls; anything specific to one engine is stated in the sheet.

Suspension, exhaust, brakes and valve collets on the Logan IKnown weak points

Engine / equipment: Dacia Logan I and Logan MCV I (petrol, LPG and diesel)
Period mentioned: 2004–2012
Symptoms: Joints and track-rod ends that wear quickly, a short-lived exhaust, brake hoses from the sixth year and then discs, lights; batteries, starters, fuel pumps, door locks, crankshaft sensors and ignition leads.
Possible cause described: Inspection and breakdown-service data. Recalls: faulty valve collets on 2010 model-year cars (possible engine damage), loosely fixed alternator wiring (fire risk), the brake-light switch (2009) and an ABS warning lamp that might not light up.
Check for the garage: Check the campaigns by VIN; check the front axle, brake hoses, exhaust and lights before the roadworthiness test.
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.

Engines: 1.5 dCi (K9K) (Diesel)

Connecting-rod bearing wear on the 1.5 dCiEngine (rod bearings)

Engine / equipment: 1.5 dCi (K9K), early series
Period mentioned: Approx. 2001–2006
Symptoms: Engine knocking, especially when cold; low oil pressure; at worst, engine failure.
Possible cause described: The connecting-rod bearings wear early, especially on cars driven a lot at low revs. It mainly affects models before 2006; Renault covered much of these repairs.
Check for the garage: Listen to the engine from cold, measure oil pressure and check the oil-change history. If it knocks, do not keep driving.
Cost cited in the source: No verified estimate; from replacing the bearings to replacing the engine.A rough figure from the original database, not an up-to-date quote.

Engines: 1.5 dCi (K9K) (Diesel)

1.5 dCi pump and injectors with Delphi systemInjection / turbo

Engine / equipment: 1.5 dCi (K9K) with early Delphi injection
Period mentioned: Approx. 2001–2011
Symptoms: Injection warning, jerking, rough idle, loss of power, smoke and sometimes a no-start.
Possible cause described: In the early years, the Delphi high-pressure pump can shed metal filings that contaminate the circuit and damage the injectors one after another.
Check for the garage: Read the codes (e.g. P0087, low rail pressure) and look for filings in the diesel filter. If the circuit is contaminated, replace pump, rail and injectors and clean the tank and lines.
Cost cited in the source: Approx. €1,800–3,500 (pump, four injectors, rail and circuit cleaning)A rough figure from the original database, not an up-to-date quote.

Engines: 1.5 dCi (K9K) (Diesel)

1.5 dCi timing belt or pulley failureTiming system

Engine / equipment: 1.5 dCi (K9K)
Period mentioned: 2009–2011
Symptoms: Noise or squeal around the belts; if the timing belt breaks, the engine stops suddenly and can be badly damaged.
Possible cause described: On 2009–2011 engines, pulleys and timing or auxiliary belts were reported to break.
Check for the garage: Keep to the timing-belt interval and always replace the full kit (belt, rollers and pulleys); check the auxiliary belt and its pulley.
Cost cited in the source: No verified estimate; ask the garage for a timing-kit quote.A rough figure from the original database, not an up-to-date quote.