KNOWN FAULTS · Dacia
Dacia Logan (I) common problems.
2004–2012 · Petrol / LPG / CNG / Diesel
Sources are not verified in real time and no entry confirms that your car is affected.
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8 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.
Sources from the original database
View full entryEngines: 1.6 16V (K4M) (Petrol)
Applies if: With air conditioning and power steering, built in Pitești up to 27/4/2013.
Accessory belt that slips or breaks on the Dacia 1.6 16V (Logan and Duster up to 2013)Engine
- Engine / equipment
- 1.6 16V petrol (K4M) with air conditioning and power steering: Dacia Logan and Duster built in Pitești
- Period mentioned
- 2010–2013
- Symptoms
- The accessory belt slips, wears early together with its roller or breaks; if it breaks, power steering and alternator charging are lost.
- Possible cause described
- The alternator pulley is a fixed wheel and does not absorb the engine's rotational irregularities, so the belt suffers. In February 2015 Dacia opened a curative workshop action for the Logan and Duster 1.6 16V built in Pitești up to 27/4/2013 (6,344 cars in France): it replaces the alternator and the accessory belt kit and, in extreme cases, the engine.
- Check for the garage
- Check the accessory belt and the tensioner roller and whether the alternator has a fixed pulley. If the belt slips or is cracked, replace it with the roller; ask Dacia by VIN whether the car was in the 2015 action. If the belt breaks while driving, stop: without it the battery is not charged.
- 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
View full entryEngines: 1.4 / 1.6 MPI GLP (LPG / CNG)
Applies if: Factory LPG, built up to 23/9/2010.
LPG tank rusting on the outside on the LPG Logan I and Sandero I (up to 2010)Fuel system
- Engine / equipment
- Dacia Logan I and Sandero I with factory LPG, built up to 23/9/2010
- Period mentioned
- Up to September 2010
- Symptoms
- Rust on the outer shell of the LPG tank. According to L'argus it does not affect safety, but it can make the car fail its roadworthiness test.
- Possible cause described
- According to L'argus (July 2017), the supplier applied the tank's anti-corrosion treatment badly. It affects LPG Logan I and Sandero I built up to 23/9/2010 (and LPG Renault Clio II up to November 2010): 58,193 customers in France. Since May 2016 Renault has replaced the tank, in about two and a half hours, without an official recall and only if the owner asks for it.
- Check for the garage
- Have the LPG tank looked at in the garage or at the roadworthiness test. If the shell is rusty, ask Dacia to replace the tank: owners are not told by letter, you have to ask yourself.
- Cost cited in the source
- In France it was free on cars under 10 years old and 300,000 km (May 2016); these cars are now over 10 years old, so ask Dacia or get a quote.A rough figure from the original database, not an up-to-date quote.
Sources from the original database
View full entryEngines: 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.
Sources from the original database
View full entryEngines: 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.
Sources from the original database
CarVerif: Dacia Logan MCV 1.5 dCi 85 reliabilityȘtiință și Inginerie: study of injection faults on a Dacia Logan 1.5 dCiPlanète Renault: the 1.5 dCi, a reliable long-lived diesel
View full entryEngines: 1.5 dCi (K9K) (Diesel)
1.5 dCi timing belt or pulley failureValve timing
- 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.
Sources from the original database
View full entryEngines: 1.5 dCi (K9K) (Diesel)
EGR valve sticking with deposits on the 1.5 dCiExhaust and emissions
- Engine / equipment
- 1.5 dCi (K9K) with an electric EGR valve
- Period mentioned
- No specific period published
- Symptoms
- Uneven idle, jerks when accelerating, lack of power or the engine going into limp mode, sometimes with the engine warning light on.
- Possible cause described
- Soot and oil deposits leave the EGR valve stiff, stuck closed or not closing fully. According to Pierburg it is rarely a fault of the valve itself: the oil comes through the crankcase breather, a turbo with worn bearings or a blocked oil return, late oil changes or too high a level, and many short trips, above all in winter.
- Check for the garage
- At the workshop: read the codes with diagnostic equipment (EOBD P0400 to P0404 or P0172; Renault DF077, DF084 or DF241), test the valve electrically and its opening with the engine warm, and find where the oil comes from (breather, turbo, level). Pierburg advises against cleaning it, as it can be damaged: it is replaced if faulty, and an engine ECU update sometimes solves it.
- Cost cited in the source
- No verified estimate; ask the workshop for a quote for the EGR valve.A rough figure from the original database, not an up-to-date quote.
Sources from the original database
View full entryEngines: 1.5 dCi (K9K) (Diesel)
Applies if: Only if the injection pump is a Delphi (it says so on the pump): depending on the version, the 1.5 dCi has Delphi or Siemens/Continental.
Delphi injection on the 1.5 dCi: air in the fuel, metal swarf, regulator or injectorsInyección
- Engine / equipment
- 1.5 dCi (K9K) with Delphi common-rail injection
- Period mentioned
- No specific period published
- Symptoms
- Hard to start or will not start, stalls, loses power or jerks; sometimes air bubbles show in the clear fuel pipe.
- Possible cause described
- The usual faults of the K9K's Delphi system are air getting into the low-pressure circuit, metal swarf from the pump contaminating the whole system, the pump's inlet metering valve (IMV), injectors with too much return flow and the rail pressure sensor.
- Check for the garage
- At the workshop, in this order: look for air and leaks in the low-pressure circuit and prime it; check the fuel filter bowl for metal swarf (if there is any, the whole injection system is replaced); measure the rail pressure, the IMV regulator's resistance (4.8–5.8 Ω) and each injector's return flow (25 ml at most in the test). A new injector's code must be written into the ECU.
- Cost cited in the source
- No verified estimate; it varies widely, from a filter or the regulator to the whole injection system.A rough figure from the original database, not an up-to-date quote.
Sources from the original database
View full entryEngines for this model
- 1.4 / 1.6 MPI (K7J / K7M)Petrol
- 1.6 16V (K4M)Petrol
- 1.4 / 1.6 MPI GLPLPG / CNG
- 1.5 dCi (K9K)Diesel