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1.5 dCi (K9K)

2012–2019 · diesel · 1461cc · 90hp

Engine codes: K9K

Maint. Sensitive

Reliability, common problems and owner reviews for the Renault Clio IV 1.5 dCi (K9K). Check this before you buy used.

The 1.5 dCi (K9K — the most widely-used small diesel in Europe, shared across the entire Renault-Nissan-Dacia range) makes the Clio IV a genuinely frugal long-hauler. It's a proven high-mileage engine but carries the K9K cautions: injector wear (the classic dCi item), turbo oil-feed and DPF/EGR on the DPF cars, plus the timing belt (do it on schedule). With clean fuel, an on-time belt and a healthy injector set it's a dependable, very economical engine — one of the most familiar diesels on the road. Buy on belt and injector history.

Same engine, other cars

This is the same physical engine (K9K) sold under different names across brands. Reliability is broadly shared — cross-check these:

Known Issues

Injector wear (dCi)recurring

K9K injectors wear → rough running, smoke. Classic dCi item.

Fix / Workaround: Injector test/recon; clean fuel.

Repair cost: €250–€1100

Typically appears after: 140,000 km

Timing belt / turbo / DPFrecurring

Belt-driven (do on schedule); turbo oil-feed and DPF on DPF cars.

Fix / Workaround: Belt per schedule; check turbo feed; motorway regens.

Repair cost: €250–€1000

Typically appears after: 130,000 km

Mileage Thresholds

After 220,000 km: High-mileage capable with belt + injector care.

Pre-Purchase Checklist

  • ☐Same K9K as Captur / Mégane / Qashqai
  • ☐Timing belt on schedule
  • ☐Injector history

Frequently asked questions

Is the Renault Clio IV 1.5 dCi (K9K) reliable?

Maint. Sensitive — The 1.5 dCi (K9K — the most widely-used small diesel in Europe, shared across the entire Renault-Nissan-Dacia range) makes the Clio IV a genuinely frugal long-hauler. It's a proven high-mileage engine but carries the K9K cautions: injector wear (the classic dCi item), turbo oil-feed and DPF/EGR on the DPF cars, plus the timing belt (do it on schedule). With clean fuel, an on-time belt and a healthy injector set it's a dependable, very economical engine — one of the most familiar diesels on the road. Buy on belt and injector history.

What are the common problems and reviews for the Renault Clio IV 1.5 dCi (K9K)?

The most commonly reported problems: Injector wear (dCi), Timing belt / turbo / DPF.

Is a used Renault Clio IV 1.5 dCi (K9K) worth buying?

Fine if serviced correctly — but it punishes neglect hard. History and the right consumables matter.