CKFCar Known Faults

Renault Known Faults

France

44

Known Faults

Models

Clio

1990–present

36 faults

Megane

1995–present

4 faults

Scenic

1996–2023

4 faults

Most Reported Faults

DPF Blockage

Moderate
2008-201640,000–90,000 miles£200–£900

DPF blockage on the Megane Mk3 dCi is a familiar complaint. Urban family use prevents the regeneration cycle from completing.

EGR Valve Carbon Blockage

Moderate
2009-201650,000–100,000 miles£100–£400

EGR failure on the Scenic Mk3 follows the K9K pattern — carbon accumulation causes power loss and rough running, compounded by the MPV's urban use profile.

Timing Chain Failure (K9K)

Severe
2008-201680,000–150,000 miles£600–£1000

The K9K 1.5 dCi timing chain issue affects the Megane Mk3 just as it does the Clio, Juke and Qashqai. Chain rattle on cold start is a sign of imminent failure.

Injector Return Pipe Failure

Severe
2008-201660,000–130,000 miles£30–£150

The K9K injector fuel return pipe clips crack with age — a fire risk found on all K9K-powered Renaults including the Megane. The repair is inexpensive but urgent.

EGR Valve Carbon Blockage

Moderate
2008-201650,000–100,000 miles£100–£400

EGR valve carbon build-up on the Megane Mk3 dCi restricts airflow and causes power loss. It is one of the most frequently reported faults by Megane diesel owners.