KNOWN FAULTS · Renault

Renault Koleos (I) 2.0 dCi (M9R) common problems.

2008–2016 · 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.

Rust, particulate filter and control unit on the Koleos IKnown weak points

Engine / equipment: Renault Koleos I (2.5 petrol and 2.0 dCi)
Period mentioned: 2008–2016
Symptoms: Heavy rust on the subframe, window frames and rear suspension (the rear wags over ruts); a car that suddenly will not start because of a failed body control unit (UCH/BCM); on the 2.0 dCi, an emissions warning and loss of power from a full particulate filter.
Possible cause described: Cases collected by Honest John. The Koleos shares components with the Nissan Qashqai and X-Trail, which had a loss-of-steering recall (built 24/11/2006 to 14/7/2009); in 2011 there was an ECU update to help the particulate filter regenerate.
Check for the garage: Check the underside and rear suspension; ask about the ECU update; check campaigns by VIN.
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.