Car Model Guide/ Renault/ Clio/ X85/ 1.5 dCi

1.5 dCi K9K

The most-produced small diesel in Europe, shared across Renault, Nissan and Dacia. It's absurdly economical and cheap to fix, and injector wear is the fault that defines it, with a leaking injector able to wash a bore.

Overview

The 1.5 dCi is the K9K diesel version of the Renault Clio hatchback (X85), sold 2005–2014 with 86 PS and manual or automatic. Demands diligence at level 3. Injector wear can let fuel wash a bore, which turns a moderate repair into an engine. 4 failure modes are recorded against its engine, gearbox, chassis and shared components. Prices on this page are illustrative placeholders rather than a sourced market sample. See the methodology for how the bands are derived.

Renault Clio hatchback (X85) · photo Renault Clio 20th (III, Facelift) – Frontansicht, 12. Juni 2011, Düsseldorf by M 93 · CC BY-SA 3.0 de · Wikimedia Commons

Power86 PS

Torque200 Nm

Years2005–2014

Fueldiesel

DriveFWD

EnginesK9K

Biggest risks

Ranked by probability × repair cost. 4 recorded in total.

52Demands diligence

DPF clogging and forced regeneration€250–€1,800partly checkable
Injector wear and bore washing€400–€1,200partly checkable
Switch, window and lighting faults€80–€600checkable

Risk level −22 · Likely spend vs price −26 · all issues →

System by system9 systems reviewed · 6 with no recurring fault reported

Engine✓ clearNo recurring fault reported for this system on this engine.

Fuel systemwatchInjector wear and bore washing, €400–€1,200.

Intake & air✓ clearNo recurring fault reported for this system on this engine.

Cooling✓ clearNo recurring fault reported for this system on this engine.

Emissions⚠ attentionDPF clogging and forced regeneration, €250–€1,800.+1 more in this system

Transmission✓ clearNo recurring fault reported for this system on this engine.

ElectricswatchSwitch, window and lighting faults, €80–€600.

Suspension & brakes✓ clearNo recurring fault reported for this system on this engine.

Body & interior✓ clearNo recurring fault reported for this system on this engine.

Pre-facelift or facelift, this engine spans both

The same badge either side of the changeover. Bands are split at the facelift year from the generation record.

Phase	Years	Low	Average	High	Good buy	What differs
pre Pre-facelift	2005–2008	€2,400	€4,000	€6,500	€3,200	The specification the car launched with.
LCI Facelift (LCI)	2009–2014	€2,600	€4,350	€7,100	€3,500	New nose and lights; Revised interior; Euro 5 dCi engines

Known issues, ranked by expected cost

Faults recorded against this engine, its components and its chassis, ranked by likelihood × repair cost. Costs are indicative ranges with a stated labour basis.

DPF clogging and forced regenerationDPF€250–€1,800

Warning light, limp mode, oil level rising above the maximum mark from fuel dilution. The filter needs sustained hot running to regenerate. A car used for short urban trips never completes a regeneration cycle.

Check: Read the DPF soot load and the distance since the last regeneration on a scan tool, and check the engine oil level and smell it for diesel. Ask what the car was used for. A short-trip city diesel is the wrong car regardless of mileage.

EmissionscommonPartly detectableevidence: documented120–250k km

Injector wear and bore washingK9K 1.5 dCi€400–€1,200

A rough idle, smoke on start-up, uneven running and in the worst case low compression on one cylinder. The injectors wear and can leak, letting combustion gases and fuel past the seat. Left alone, fuel washes the oil film off the bore and damages it, which turns an injector job into an engine one.

Check: Read the injector correction values on a diagnostic and look for one cylinder out of line with the rest. Ask what injector work has been done, because most high-mileage examples have had some.

FuelcommonPartly detectableevidence: documented130–230k km

Switch, window and lighting faultsX85 body€80–€600

Window motors that stop working, a central locking that misses a door, dashboard warning lights that come and go, and failing exterior bulb circuits. The connectors and small motors age, and damp in the doors and tailgate accelerates it. Almost none of it is expensive on its own, and it adds up on a car worth this little.

Check: Work every window, mirror, light and lock during the viewing rather than sampling a few. A seller who has stopped fixing small faults is telling you how the car has been kept.

ElectricalcommonDetectable at viewingevidence: documented90–180k km

EGR cooler leakEGR cooler€400–€1,000

Coolant loss with no visible external leak, white smoke, sweet smell. The EGR cooler cracks internally and leaks coolant into the intake. BMW recalled affected diesels over a fire risk from glycol deposits igniting.

Check: Check coolant level and look for unexplained top-ups in the service history. Verify the recall was carried out. It's free and searchable by VIN.

EmissionsoccasionalPartly detectableevidence: manufacturer120–250k km

Ranked by probability × repair cost, not by how loudly a failure is discussed. Inherited from the engine, gearbox, chassis and shared components, each written once.

Pre-purchase inspection

The same issue records, reordered into the sequence you can actually check them in: cold start, static, drive, paperwork.

4 checks · saved in this browser ·

1Static checksEngine off, ideally on a lift.

Switch, window and lighting faultsWork every window, mirror, light and lock during the viewing rather than sampling a few. A seller who has stopped fixing small faults is telling you how the car has been kept.

2PaperworkOn these cars the folder is most of the value.

EGR cooler leakCheck coolant level and look for unexplained top-ups in the service history. Verify the recall was carried out. It's free and searchable by VIN.

3OBD scanMandatory. A seller who refuses a scan has answered the question.

DPF clogging and forced regenerationRead the DPF soot load and the distance since the last regeneration on a scan tool, and check the engine oil level and smell it for diesel. Ask what the car was used for. A short-trip city diesel is the wrong car regardless of mileage.Injector wear and bore washingRead the injector correction values on a diagnostic and look for one cylinder out of line with the rest. Ask what injector work has been done, because most high-mileage examples have had some.

Mileage and servicing

What the odometer does and doesn't tell you here, plus the service items whose neglect causes the expensive failures above.

The K9K runs well past 300,000 km, so a high reading isn't a reason to walk. What you want is evidence of injector work, because most high-mileage cars have needed some.

Service item	Interval	Cost
Engine oil and filter Injector and turbo life both depend on it.	10,000–15,000 km	€70–110
Cambelt and water pump Belt failure is terminal on this engine.	120,000 km or 6 years	€380–560

What to pay

What this engine sells for, against the median of every engine in the chassis. All figures are illustrative placeholders. See the basis chips.

median €4.2k

€2.4k€3.2k€7.1k

Cheapfind the reasonGood buyif it checks outFairnormal moneyOverpricedneeds justifying

Asking price (€)Mileage (km)

Enter an asking price to get a verdict against this variant's band: cheap, fair, good buy or overpriced.

United States vs Europe

1 EUR = 1.08 USD · 2026-07

🇪🇺 Europe · EUR€3,200band €2,400–€7,100

🇺🇸 United StatesNot sold1.5 dCi K9K was never a US-market car

What that meansNo US band exists to compare. Any car you find there's a private import, parts and specialist knowledge are thinner, and the price says more about import cost than about the market.

US figures are the EU band converted at a stated rate. No US market differential is modelled: we hold no sourced US asking prices, and inventing one would be worse than saying so. What the comparison does show for real is availability. Most of this range was never sold in the US.

ModelRenault Clio 1.5 dCi
ChassisX85
EngineK9K
Years2005–2014
MarketCentral EU
Windowrolling 12 months to 2026-07

Good buy at or under the marker · Median asking price · bar spans the 10th to 90th percentile · dashed line is the x85 median, all 2 engines

Good buy isn't the same as cheapest. The good-buy figure assumes the known failure items are either done with receipts or verifiably not yet due. Full breakdown by facelift phase →

Buyer notes

Our judgement, kept separate from the records it's built on.

Our read, not a record

This is the most-produced small diesel in Europe and that's the argument for it, since parts are cheap and any garage can work on it. Read the injector correction values on a diagnostic and look for one cylinder out of line with the others. Ask what injector work has been done and treat receipts as a positive rather than a warning. So work every switch and window motor in the cabin, because the electrics are what owners actually complain about here.

Everything above this line comes from the issue and specification records. This paragraph is our judgement on top of them. See how we reach it.

Full specification

Manufacturer figures for this engine and body, as recorded in the variant and engine data.

Engine code	K9K 1.5 dCi
Configuration	I4, turbocharged · 1461 cc
Fuel / injection	diesel · common rail
Model years	2005–2014
Facelift phase	Sold either side of the 2009 facelift, 2005–2008 pre, 2009–2014 LCI
Power / torque	86 PS · 200 Nm
Transmissions	5-speed manual · 6-speed manual
Gearbox families	Renault JH/JR five- and six-speed manual
Drivetrain	FWD
Economy (real-world)	3.8–4.8 l/100 km mixed
Markets	EU