KNOWN FAULTS · Renault
Known faults for the Renault Mégane (II).
2002–2009 · Petrol / Diesel
Sources are not verified in real time and no entry confirms that your car is affected.
Buying it used?Which engine has the fewest documented faults, which recalls to ask the seller about and what to look for on the test drive.Before you buy
4 known faults with sources
Engines: 1.4 / 1.6 16V (K4J / K4M) (Petrol) · 2.0 16V / 2.0 Turbo (F4R / F4Rt) (Petrol) · 1.5 dCi (K9K) (Diesel) · 1.9 dCi (F9Q) (Diesel) · 2.0 dCi (M9R) (Diesel)
Applies if: Only with a key card (keyless start).
“Card not detected”: the car does not recognise the key cardElectrical and electronic systems
- Engine / equipment
- Hands-free card and cabin unit (UCH)
- Period mentioned
- Approx. 2003–2009
- Symptoms
- The cards stop opening or starting the car, hands-free and with the buttons, and “Card not detected” appears; sometimes it clears by itself after a few minutes.
- Possible cause described
- Owner reports: the cabin unit (UCH) stops recognising the cards’ code; described as common on the Scénic II and Mégane II.
- Check for the garage
- Try the other card and its battery; at the dealer or with a diagnostic tool, check the UCH and relearn both cards.
- Cost cited in the source
- No verified estimate; relearning the cards is usually a short garage job.A rough figure from the original database, not an up-to-date quote.
Sources from the original database
Planète Renault (forum): cards not detected on the Scénic IIPlanète Renault (forum): Scénic II cards not working
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: 2.0 dCi (M9R) (Diesel)
Seized injectors and stretched chain on the 2.0 dCi (M9R)Timing / injection
- Engine / equipment
- 2.0 dCi (M9R) diesel with timing chain
- Period mentioned
- Approx. 2005–2023
- Symptoms
- Chain noise at high mileage; loss of power and emissions warnings in town use; injectors that will not come out when removed.
- Possible cause described
- The chain can stretch at high mileage, the injectors can seize in the cylinder head and, with short trips, the particulate filter and EGR clog.
- Check for the garage
- Listen to the chain from cold, check injection and emissions codes, and before removing injectors have extraction tools ready. Keep oil changes up to date.
- 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 for this model
- 1.4 / 1.6 16V (K4J / K4M)Petrol
- 2.0 16V / 2.0 Turbo (F4R / F4Rt)Petrol
- 1.5 dCi (K9K)Diesel
- 1.9 dCi (F9Q)Diesel
- 2.0 dCi (M9R)Diesel