Reliability Summary

Best engine K9K 1.5 dCi (post-2010) — 78/100 BUY
Worst engine K9K 1.5 dCi (2001-2010, Euro 3/4) — 62/100 CAUTION
Average reliability 70/100

Engine Comparison

Engine Reliability Score Verdict Known Issues
K9K 1.5 dCi (post-2010)
1.5L Diesel I4
78/100 BUY Con-rod bearing wear (rarer than pre-2010, not eliminated) +4
K9K 1.5 dCi (2001-2010, Euro 3/4)
1.5L Diesel I4
62/100 CAUTION Con-rod bearing wear and spun bearing shells +4

Engines in this model

Known Issues Across All Engines

Issue Engine Severity Onset
Con-rod bearing wear (rarer than pre-2010, not eliminated) K9K 1.5 dCi (post-2010) critical 120,000 km – 150,000 km
Timing belt — INTERFERENCE ENGINE (critical) K9K 1.5 dCi (post-2010) high 90,000 km – 150,000 km
EGR fouling + DPF (city use) K9K 1.5 dCi (post-2010) moderate —
Turbocharger wear at high mileage K9K 1.5 dCi (post-2010) moderate —
Injector wear K9K 1.5 dCi (post-2010) moderate —
Con-rod bearing wear and spun bearing shells K9K 1.5 dCi (2001-2010, Euro 3/4) critical 90,000 km – 150,000 km
Timing belt - interference engine; misaligned pump pulley can shred it K9K 1.5 dCi (2001-2010, Euro 3/4) high 90,000 km – 150,000 km
Delphi high-pressure pump metal swarf and injector failure K9K 1.5 dCi (2001-2010, Euro 3/4) high 60,000 km
Turbocharger wear from oil quality K9K 1.5 dCi (2001-2010, Euro 3/4) moderate —
EGR valve fouling K9K 1.5 dCi (2001-2010, Euro 3/4) minor —

FAQ

Is the Renault Clio reliable?

The Renault Clio has 2 engine options with reliability scores ranging from 62/100 (CAUTION) to 78/100 (BUY). Average reliability: 70/100.

Which Renault Clio engine is most reliable?

The K9K 1.5 dCi (post-2010) is the most reliable engine in the Renault Clio, scoring 78/100 (BUY).

What problems does the Renault Clio have?

Across all engine variants, the Renault Clio has 10 known issues. The most common are related to Con-rod bearing wear (rarer than pre-2010, not eliminated), Timing belt — INTERFERENCE ENGINE (critical), EGR fouling + DPF (city use).