KNOWN FAULTS · Dacia
Dacia Logan MCV (II) common problems.
2013–2020 · Petrol / LPG / CNG / Diesel
Sources are not verified in real time and no entry confirms that your car is affected.
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7 known faults with sources
Engines: 1.2 16V (D4F) (Petrol) · 1.0 SCe (B4D) (Petrol) · 0.9 TCe (H4Bt) (Petrol) · 1.2 16V / 0.9 TCe 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.
Three-cylinder timing chain, lights and campaigns on the Logan IIKnown weak points
- Engine / equipment
- Dacia Logan II and Logan MCV II (petrol, LPG and diesel)
- Period mentioned
- 2012–2020
- Symptoms
- On the three-cylinders (SCe 75, TCe 90 and 100), a chain that stretches early with a risk of serious failure and sometimes high oil consumption; failing dipped beams, tail lights and indicators, oil leaks, brake discs and suspension at the roadworthiness test; starter, ignition lock and battery.
- Possible cause described
- The naturally aspirated 1.2 16V is far more reliable. Many recalls (KBA): driver airbag (2012–2013 and 2018), track rod (17/9–4/12/2015), front-right caliper, steering-column mounting (23/11/2016–4/1/2018), trailer module, battery (11–14/6/2018) and bonnet latch (2/9/2020–15/1/2021).
- Check for the garage
- Listen to the chain when cold and measure oil consumption; check every campaign by VIN; check lights and leaks 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
Gebrauchtwagenberater: Dacia Logan MCV II, typical problemsCarWiki: known problems of the Dacia Logan
View full entryEngines: 1.2 16V (D4F) (Petrol) · 1.0 SCe (B4D) (Petrol) · 0.9 TCe (H4Bt) (Petrol) · 1.2 16V / 0.9 TCe GLP (LPG / CNG) · 1.5 dCi (K9K) (Diesel)
Applies if: Only cars built from 29/5 to 25/6/2020.
Recall: rear brake drum linings on the Logan MCV II (June 2020)Brakes
- Engine / equipment
- Second-generation Dacia Logan MCV built from 29/5 to 25/6/2020
- Period mentioned
- 2020
- Symptoms
- The rear brake drum linings are not the right ones and can impair the stability control (ESP).
- Possible cause described
- According to L'argus (January 2021), non-compliant linings were fitted in the rear brake drums of Logan MCVs built from 29/5 to 25/6/2020 (287 cars in France), the last ones before this generation ended. Dacia has written to owners by registered letter since December 2020.
- Check for the garage
- Ask Dacia by VIN whether your car is in the recall. The check takes about 20 minutes; if the linings have to be replaced, nearly two hours.
- Cost cited in the source
- Free under the recall.A rough figure from the original database, not an up-to-date quote.
Sources from the original database
View full entryEngines: 0.9 TCe (H4Bt) (Petrol)
Stretched timing chain on the 0.9 and 1.2 TCeValve timing
- Engine / equipment
- 0.9 TCe (H4Bt) and 1.2 TCe (H5Ft) turbo petrol
- Period mentioned
- Approx. 2012–2020
- Symptoms
- Metallic chain rattle, especially when cold or at idle; engine light with a crankshaft–camshaft correlation code; in serious cases the chain jumps and damages the valves.
- Possible cause described
- The chain, meant to last the engine’s life, can stretch early; tensioners and plastic guides wear, and very long oil-change intervals speed up the wear.
- Check for the garage
- With any chain noise or a P0016 code, diagnose straight away: measure the stretch and check the tensioner and guides before the timing jumps. Shorten oil-change intervals.
- Cost cited in the source
- No verified estimate; ask the garage for a quote for the chain kit.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 Euro 6b 1.5 dCi (not the later Blue dCi), if the symptoms began after the 2024 update.
Judder and flat spots when accelerating on Euro 6b 1.5 dCi and 1.6 dCi engines after the 2024 emissions updateExhaust and emissions
- Engine / equipment
- Renault and Dacia Euro 6b 1.5 dCi (K9K) and 1.6 dCi (R9M)
- Period mentioned
- Cars that received the NOx-reduction update of early 2024
- Symptoms
- After a visit to the dealer, flat spots when accelerating and judder at steady speeds; sometimes higher diesel consumption. On the Mégane IV and Kadjar the engine may start and then stall.
- Possible cause described
- In early 2024 Renault and Dacia updated these engines to cut nitrogen oxides (NOx) further. According to an internal Renault technical note from June 2024, updated in February 2025 and reported by L'argus, the flat spots and judder are mainly due to the new strategy widening the periods when the NOx trap is cleaned (regenerated); to do so the engine injects more diesel, which also explains the higher consumption.
- Check for the garage
- Ask a Renault or Dacia dealer for the new injection ECU reprogramming for these symptoms (Dacia has offered it since May 2024 and Renault since January 2025). It is not a recall with a letter: you have to ask for it. First have them rule out other causes (particulate filter, boost pressure sensor).
- Cost cited in the source
- No verified estimate: the note does not say whether the reprogramming is free; ask the dealer.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)
Clogged particulate filter on the 1.5 dCiExhaust and emissions
- Engine / equipment
- 1.5 dCi (K9K) with particulate filter
- Period mentioned
- 2010 onwards
- Symptoms
- Particulate-filter or emissions warning, limp mode with loss of power and frequent regenerations.
- Possible cause described
- The filter clogs, especially on cars that mostly make short town trips and never complete a regeneration.
- Check for the garage
- Read the soot load with a diagnostic tool, run a forced regeneration at the garage and check the differential-pressure sensors and EGR. Make long road trips now and then.
- Cost cited in the source
- No verified estimate; from a regeneration to replacing the filter.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
- 1.2 16V (D4F)Petrol
- 1.0 SCe (B4D)Petrol
- 0.9 TCe (H4Bt)Petrol
- 1.2 16V / 0.9 TCe GLPLPG / CNG
- 1.5 dCi (K9K)Diesel