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1.5 / 1.6 dCi (K9K / R9M)

2015–2022 · diesel · 1461cc · 110hp

Engine codes: K9K, R9M

Maint. Sensitive

Reliability, common problems and owner reviews for the Renault Kadjar 1.5 / 1.6 dCi (K9K / R9M). Check this before you buy used.

The diesels are the high-mileage Kadjar choice — the frugal 1.5 dCi (K9K, the ubiquitous Renault small diesel shared across the range) and the stronger 1.6 dCi (R9M, also in the Qashqai/Mégane). Both are economical and proven; standard cautions apply: DPF clogging on short trips, EGR sooting, injector wear, the timing belt on the K9K (do it on schedule), and AdBlue on later cars. The 1.6 is the better-matched engine for the crossover's weight. A motorway-driven, on-schedule car is a dependable long-hauler — buy on belt, DPF 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

DPF / EGR / injectorrecurring

DPF clogs and EGR soots on urban use; injector wear.

Fix / Workaround: Motorway regens; clean EGR; injector test.

Repair cost: €250–€1100

Typically appears after: 140,000 km

Timing belt (K9K) / AdBluerecurring

K9K belt-driven (do on schedule); AdBlue/SCR on later cars.

Fix / Workaround: Belt per schedule; diagnose SCR.

Repair cost: €250–€900

Typically appears after: 130,000 km

Mileage Thresholds

After 200,000 km: High-mileage capable with care.

Pre-Purchase Checklist

  • ☐1.6 R9M is the stronger pick
  • ☐Same K9K/R9M as Qashqai / Mégane
  • ☐Belt + DPF + injector history

Frequently asked questions

Is the Renault Kadjar 1.5 / 1.6 dCi (K9K / R9M) reliable?

Maint. Sensitive — The diesels are the high-mileage Kadjar choice — the frugal 1.5 dCi (K9K, the ubiquitous Renault small diesel shared across the range) and the stronger 1.6 dCi (R9M, also in the Qashqai/Mégane). Both are economical and proven; standard cautions apply: DPF clogging on short trips, EGR sooting, injector wear, the timing belt on the K9K (do it on schedule), and AdBlue on later cars. The 1.6 is the better-matched engine for the crossover's weight. A motorway-driven, on-schedule car is a dependable long-hauler — buy on belt, DPF and injector history.

What are the common problems and reviews for the Renault Kadjar 1.5 / 1.6 dCi (K9K / R9M)?

The most commonly reported problems: DPF / EGR / injector, Timing belt (K9K) / AdBlue.

Is a used Renault Kadjar 1.5 / 1.6 dCi (K9K / R9M) worth buying?

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