KNOWN FAULTS · Renault

Renault Trafic (III) 2.0 dCi / Blue dCi (M9R) common problems.

2014–2026 · Diesel

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

2 known faults with sources

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

EGR pipes, particulate filter and leaks on the Trafic III 1.6 dCiExhaust and emissions

Engine / equipment: Renault Trafic III (1.6 dCi and 2.0 dCi)
Period mentioned: 2014 onwards
Symptoms: Loss of power, soot, burning smell and a warning light from cracked EGR pipes; a clogged particulate filter on short trips; oil from the timing-cover seal; rarely, block cracks.
Possible cause described: The 1.6 dCi high-pressure EGR pipes were too thin and crack from vibration and heat (free campaign). There was also a recall to check and tighten the rear-axle bolts on every Trafic III.
Check for the garage: Check the EGR and rear-axle campaigns by VIN; drive long trips to regenerate the filter.
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.

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.