Renault Kadjar 1.5 dCi Engine ReplacementCompare Prices & Get Quotes
Get quotes today from trusted UK Renault Kadjar 1.5 dCi engine specialists. Compare prices on reconditioned, rebuilt and used engines for your diesel Kadjar - from 2015 through to 2022.
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From £1,450 to £2,250
Used from £650 · Reconditioned from £1,450 · Common codes: K9K 730, K9K 732, K9K 736, K9K 738, K9K 740, K9K 646, K9K 648, K9K 649
From £650
Tested, bare/short engine
From £1,450
Rod bearings addressed, tested
From quote
Upgraded bearings, full teardown, revised valvetrain

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3 Simple Steps3 Simple Stepsto Finding the Best Renault Kadjar 1.5 dCi Replacement Engineto Finding the Best Renault Kadjar 1.5 dCi Replacement Engine
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Renault Kadjar 1.5 dCi - Engine History & Specs at a Glance
The Renault Kadjar 1.5 dCi, powered by the legendary K9K engine family, has been the most popular powertrain choice for UK Kadjar buyers since the model's launch in 2015. Sharing the CMF-CD platform with the Nissan Qashqai, the Kadjar's 1.5 dCi diesel engine - available in outputs from 110hp to 115hp - became the default choice for fleet, private hire and family users seeking a balance of economy and torque. The K9K engine has a cast-iron block, an aluminium cylinder head and a timing belt drive, and its widespread use across multiple manufacturers (including Nissan, Mercedes and Dacia) has made it a familiar unit to UK specialists.

Renault Kadjar 1.5 dCi - Engine History & Specs at a Glance
The Renault Kadjar 1.5 dCi, powered by the legendary K9K engine family, has been the most popular powertrain choice for UK Kadjar buyers since the model's launch in 2015. Sharing the CMF-CD platform with the Nissan Qashqai, the Kadjar's 1.5 dCi diesel engine - available in outputs from 110hp to 115hp - became the default choice for fleet, private hire and family users seeking a balance of economy and torque. The K9K engine has a cast-iron block, an aluminium cylinder head and a timing belt drive, and its widespread use across multiple manufacturers (including Nissan, Mercedes and Dacia) has made it a familiar unit to UK specialists.
Renault Kadjar 1.5 dCi
Engine History Timeline
Kadjar launched with 1.5 dCi 110 (K9K 730/732) offering 110hp and 260Nm of torque; Euro 6 emissions compliance
2018 - K9K 736 K9K 738 and K9K 740 variants introduced; continued 110hp output with revised emissions hardware
1.5 Blue dCi 115 (K9K 872) introduced with AdBlue/SCR system for Euro 6d-TEMP compliance
2022 - Facelift Kadjar continues with 1.5 Blue dCi 115 as the sole diesel option; K9K 872 remains in production
Kadjar production ends; replaced by the all-new Renault Austral
Key Specs Snapshot
Every engine fitted to the Renault Kadjar 1.5 dCi is covered below, with UK rebuilt pricing and known failure points.
Renault Kadjar 1.5 dCi Engine Codes - Specifications & Replacement CostRenault Kadjar 1.5 dCi Engine Codes - Specifications & Replacement Cost
1.5 dCi (2015-2017)
Compatible Trim Levels
- Kadjar Play
- Kadjar Iconic
- Kadjar Dynamique

Find your exact engine code, specs and UK replacement cost guide.
Used
Tested, ready-to-fit engine
£650-£1,100
Reconditioned
Addressed known issues, tested
£1,450-£2,000
Rebuilt
Full teardown, upgraded internals
£2,000-£2,500
Common Failure
EGR valve clogging; injector wear; DPF clogging on urban-used vehicles.


The Renault Kadjar 1.5 dCi (K9K family) is one of Europe's most popular diesel engines, but it has several well-documented failure points. The 1.5 dCi accounts for approximately 78% of UK Kadjar engine search volume. Some K9K units exceed 300,000 km without issue, while others suffer serious failures. Rebuilt engines supplied through EnginesMarket include upgraded components addressing the original failure points, plus a minimum 12-month unlimited-mileage warranty.

Emissions System Failures in the Renault Kadjar 1.5 dCi
Affected Vehicles
Renault Kadjar 1.5 dCi (K9K, all variants, particularly Euro 5/6 models)
Typical Failure Mileage
50,000-120,000 miles
Root Cause
EGR valve clogging is one of the most common diesel problems on the Kadjar 1.5 dCi, causing rough idle, poor fuel economy and engine hesitation. DPF clogging is also common, especially on vehicles used primarily for short urban journeys. EGR repair costs can reach €1,500-2,500 on some models. Injectors can seize in the cylinder head, requiring complete replacement of the assembly.
Why It Happens
EGR valve clogging is one of the most common diesel problems on the Kadjar 1.5 dCi, causing rough idle, poor fuel economy and engine hesitation. DPF clogging is also common, especially on vehicles used primarily for short urban journeys. EGR repair costs can reach €1,500-2,500 on some models. Injectors can seize in the cylinder head, requiring complete replacement of the assembly.
Dealer (parts + labour)
£200-£400
Specialist (parts + labour)
£150-£300
What it involves
Professional EGR valve cleaning or removal
Suitability
Cost-effective first-line response for rough idle and hesitation
Dealer (parts + labour)
£200-£400
Specialist (parts + labour)
£150-£300
What it involves
Diagnostic tool-initiated regeneration
Suitability
Effective if DPF is not heavily blocked
Dealer (parts + labour)
£800-£1,500
Specialist (parts + labour)
£500-£1,000
What it involves
New EGR valve, DPF unit, and associated gaskets
Suitability
Required if cleaning does not resolve the issue
Dealer (parts + labour)
£3,000-£5,000
Specialist (parts + labour)
£2,000-£3,500
What it involves
Supply & fit of rebuilt unit with upgraded components, 12-month warranty
Suitability
Only if emissions system failure has caused turbo or engine damage
| Repair Tier | Dealer (Parts + Labour) | Specialist (Parts + Labour) | What It Involves | Suitability | Estimated Time |
|---|---|---|---|---|---|
EGR Valve Cleaning Minor | £200-£400 | £150-£300 | Professional EGR valve cleaning or removal | Cost-effective first-line response for rough idle and hesitation | |
Forced DPF Regeneration Best Value | £200-£400 | £150-£300 | Diagnostic tool-initiated regeneration | Effective if DPF is not heavily blocked | |
EGR Valve / DPF Replacement Best Value | £800-£1,500 | £500-£1,000 | New EGR valve, DPF unit, and associated gaskets | Required if cleaning does not resolve the issue | |
Full Engine Replacement - rebuilt/reconditioned Best Value | £3,000-£5,000 | £2,000-£3,500 | Supply & fit of rebuilt unit with upgraded components, 12-month warranty | Only if emissions system failure has caused turbo or engine damage |
Vehicle Value Check
Vehicle Value Check
Apply this UK-wide decision framework to your Renault Kadjar 1.5 dCi. Early examples (2015-2017) typically range £4,000-£10,000; later examples (2018-2022) range £8,000-£18,000. - Vehicle worth under ~£5,000: used engine typically makes more sense than a full rebuilt unit - or consider scrapping if repair costs exceed value - Vehicle worth ~£5,000-£10,000: evaluate both; EGR/DPF repair is viable if the car is otherwise sound - Vehicle worth £10,000+: reconditioned/rebuilt usually justifies the premium via warranty and reliability
Our Recommendation
Our Recommendation
If your Kadjar 1.5 dCi is used primarily for short journeys, ensure it gets regular motorway runs to keep the DPF healthy. If the EGR valve is clogged, professional cleaning is a cost-effective solution - but if the DPF warning appears, act quickly; a forced regeneration is far cheaper than a full replacement.

Don't Let Engine Failure Write Off Your Renault Kadjar 1.5 dCi
Whether your Kadjar needs an EGR clean, timing belt replacement, injector work or a full rebuilt engine, EnginesMarket connects you with vetted UK specialists who know the K9K engine inside out. Compare prices today - no obligation, just transparent quotes with a minimum 12-month warranty on every rebuilt unit.
Compare rebuilt Renault Kadjar 1.5 dCi engine prices
Important Information
Important Information
"All prices are indicative UK market ranges based on historical quote data and repair requests from our network of engine specialists. Dealer pricing is estimated based on published main dealer labour rates and genuine OEM parts pricing. Specialist pricing reflects actual quote data from EnginesMarket's UK network. Actual costs vary depending on damage severity, vehicle condition, variant, and workshop location within the UK. Use our free comparison tool to get tailored quotes for your specific Renault Kadjar 1.5 dCi. Every engine supplied through EnginesMarket carries a minimum 12-month unlimited mileage warranty - always confirm exact terms with your chosen supplier."
Renault Kadjar 1.5 dCi Engine ReplacementFrequently Asked Questions
Question 1How much does a Renault Kadjar 1.5 dCi engine replacement cost-
A replacement engine for a Renault Kadjar 1.5 dCi typically costs £1,450-£2,250 for a reconditioned supply-only unit. Used engines start from £650. Fitting adds 8-12 hours of labour at £65-£90/hr, bringing the total fitted cost to £2,000-£3,500 at an independent specialist. Dealer pricing is significantly higher.
- Used engine supply: £650-£1,300
- Reconditioned supply: £1,450-£2,250
- Rebuilt supply: £2,000-£2,800
Question 2What are the signs of EGR or DPF failure in a Renault Kadjar 1.5 dCi-
The most common signs are loss of power, rough idle, poor fuel economy, and the engine management light illuminating. On diesel Kadjars, EGR valve clogging causes hesitation and smoke, while DPF blockage triggers warning lights and limp mode.
- Loss of power and rough idle indicate EGR issues
- DPF warning light and limp mode indicate filter blockage
- Regular motorway driving helps prevent DPF problems
Question 3Is the Renault Kadjar 1.5 dCi a reliable engine-
The 1.5 dCi is generally regarded as a dependable engine, but it has several well-documented weak points. EGR valve clogging, DPF issues and injector wear are common on higher-mileage examples. Regular maintenance - particularly timing belt replacement every 60,000 miles or 5 years - is the key to longevity.
- EGR and DPF issues are the most common problems
- Timing belt replacement is critical every 60,000 miles or 5 years
- Regular oil changes and motorway driving help prevent issues
Question 4Is it worth replacing the engine in a Renault Kadjar 1.5 dCi-
It depends on the vehicle's value. Early Kadjar examples (2015-2017) are worth £4,000-£10,000 - a full engine replacement at £2,000-£3,500 may represent 20-70% of the car's value. Later examples with higher values (£8,000-£18,000) generally justify replacement if the rest of the car is in good condition.
- Evaluate the total repair cost vs. the vehicle's current market value
- Consider part-exchange or selling for spares if repair costs exceed 60% of value
- Always get multiple quotes before committing
Question 5What's the difference between the K9K 730 and K9K 732 engines-
The K9K 730 and K9K 732 both produce 110hp and share the same 1.5-litre (1,461cc) displacement. The K9K 730 was fitted to early Kadjar models (2015-2017) while the K9K 732 was fitted from 2015-2018. Both engines share the same architecture and failure points.
- K9K 730: Early 1.5 dCi, Kadjar (2015-2017)
- K9K 732: 1.5 dCi, Kadjar (2015-2018)
- Both engines share the same architecture and failure points
Question 6Does the Renault Kadjar 1.5 dCi have a timing belt or chain-
The 1.5 dCi (K9K) uses a timing belt, not a chain. The belt requires replacement at the manufacturer-recommended interval - typically every 60,000 miles or 5 years, whichever comes first. Neglecting the timing belt can lead to catastrophic engine failure if it breaks.
- Timing belt, not chain - scheduled replacement required
- Replacement interval: 60,000 miles or 5 years
- Belts on pre-2018 models may have different durability characteristics
Compare Renault Kadjar 1.5 dCiEngine PricesToday
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