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Renault 1.5 1.9 dCi Specialists

Renault Laguna 1.5 / 1.9 dCi Engine Replacement Compare Prices & Get Quotes

Get quotes today from trusted UK Renault Laguna 1.5 dCi and 1.9 dCi diesel engine specialists. Compare prices on reconditioned, rebuilt and used engines for every Laguna diesel variant - from the fuel-efficient 110hp 1.5 dCi K9K units to the 120hp and 130hp 1.9 dCi F9Q engines fitted across Laguna II and III generations.

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Renault Laguna 1.5 / 1.9 dCi Engine
from£1,200 to £3,500
  • Usedfrom £595
  • Reconditionedfrom £1,200
  • Common codesK9K 780, K9K 782, K9K 846
Renault laguna 1.5 / 1.9 dCi Used Engine — K9K 780Renault lagunaUsed Engine — K9K 780Renault laguna 1.5 / 1.9 dCi Reconditioned Engine — K9K 780Renault lagunaReconditioned Engine — K9K 780Renault laguna 1.5 / 1.9 dCi Rebuilt Engine — K9K 780Renault lagunaRebuilt Engine — K9K 780

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How it works

3 Simple Steps to Finding the Right Replacement Engine

Clear information first, then the right engine and specialist for your exact vehicle.

Variant History

Renault Laguna 1.5 / 1.9 dCi Engine History & Specs at a Glance

The Renault Laguna diesel range spans two generations of common-rail turbodiesel engines. The 1.9 dCi (F9Q) powered the Laguna II (2001-2007) and early Laguna III (2007-2010), while the more modern 1.5 dCi (K9K) arrived with the Laguna III in 2007, offering improved fuel economy and lower emissions.

Renault Laguna 1.5 / 1.9 dCi
  1. 1999

    Laguna I receives 1.9 dCi (F9Q 718, 107hp) - early common-rail diesel

  2. 2001

    Laguna II launches with 1.9 dCi F9Q engines in 110hp and 120hp outputs

  3. 2003

    1.9 dCi 130hp (F9Q 760) introduced for Laguna II

  4. 2005

    Facelift Laguna II receives updated F9Q variants with 130hp and 150hp

  5. 2007

    Laguna III launches with 1.5 dCi (K9K 780, 110hp) and 1.9 dCi (F9Q, 130hp)

  6. 2010

    1.5 dCi updated with revised ECU and emissions hardware

  7. 2015

    Laguna production ends

Every diesel engine fitted to the Renault Laguna - from the early 1.9 dCi F9Q to the modern 1.5 dCi K9K - is covered below, with UK rebuilt pricing and known failure points.

Engine Codes & Pricing

Renault Laguna 1.5 / 1.9 dCi Engine Codes Specifications & Replacement Cost

Find your exact engine code, specs and UK replacement cost guide.

K9K 780 — 1.5L dCi Diesel (2007-2015) engine

K9K 780 — 1.5L dCi Diesel (2007-2015)

Power Output
110hp (81kW)
Engine Capacity
1,461cc
Years Fitted
2007-2015

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Common Problems

Renault Laguna 1.5 / 1.9 dCi Engine Problems Repair Cost vs Replacement

The Laguna dCi diesel engines are broadly capable units, but several failure patterns have emerged across both the 1.5 dCi and 1.9 dCi ranges. **Turbocharger failure**, **EGR valve clogging**, **injector issues** and **DPF problems** are the most commonly reported issues. Rebuilt engines supplied through EnginesMarket include upgraded components addressing these original failure points, plus a minimum 12-month unlimited-mileage warranty.

Common failure points and repair options

Turbocharger Failure

Affected
Renault Laguna 1.5 dCi (K9K 780, K9K 782, K9K 846) and 1.9 dCi (F9Q 700, F9Q 760), 2001-2015
Typical failure mileage
60,000-120,000 miles
Root cause
The turbocharger on dCi engines can fail due to oil seal wear, causing oil to enter the intake system. Symptoms include loss of power, grey smoke from the exhaust, and a "bag of spanners" noise. The 1.5 dCi turbo is known to blow and require replacement. Some owners have reported turbo issues and the need to replace the intercooler and pipework.

Repair options

Repair tierDealer priceSpecialist price
Turbocharger replacement£1,200-£2,200£700-£1,500
Full replacement - rebuilt/reconditioned engine£4,000-£6,000£2,500-£4,500
Our recommendation
If you notice loss of power, grey smoke or unusual noise from the turbo area, have the turbocharger inspected immediately. Regular oil changes with the correct grade are the best prevention - the turbo relies on clean oil for lubrication and cooling.

EGR Valve Clogging

Affected
Renault Laguna 1.5 dCi (K9K) and 1.9 dCi (F9Q), all years
Typical failure mileage
40,000-80,000 miles
Root cause
The EGR (Exhaust Gas Recirculation) valve becomes clogged with soot over time, particularly on vehicles used for short urban journeys. Symptoms include hesitation on acceleration, loss of power, rough idle, black smoke and engine management lights. The 1.5 dCi EGR valve is known to need replacing regularly.

Repair options

Repair tierDealer priceSpecialist price
EGR valve cleaning£200-£400£100-£250
EGR valve replacement£350-£600£200-£400
Our recommendation
If your Laguna dCi hesitates or has lost power, have the EGR valve inspected. Regular motorway driving and using quality fuel can help reduce the rate of carbon buildup. For persistent EGR issues, replacement is more cost-effective than repeated cleaning.

Timing Belt Replacement

Affected
Renault Laguna 1.9 dCi (F9Q 700, F9Q 760, F9Q 718), all years
Typical failure mileage
72,000-96,000 miles or 5-6 years
Root cause
The 1.9 dCi uses a timing belt, not a chain. The belt must be replaced at the manufacturer's recommended interval - failure can cause pistons to strike valves, destroying the engine. The belt-driven water pump should also be replaced at the same time.

Repair options

Repair tierDealer priceSpecialist price
Preventative timing belt replacement£500-£800£350-£550
Full replacement - rebuilt/reconditioned engine (post-failure)£4,000-£6,000£2,500-£4,500
Our recommendation
This is simple - **replace the timing belt proactively**. The cost of preventative replacement is a fraction of the cost of a replacement engine after belt failure. Check your service history: if the belt hasn't been done and you're approaching 72,000-96,000 miles or 5-6 years, book it in immediately.

DPF Problems

Affected
Renault Laguna 1.5 dCi and 1.9 dCi (DPF-equipped models), 2005-2015
Typical failure mileage
60,000-100,000 miles
Root cause
The Diesel Particulate Filter (DPF) becomes blocked on vehicles used predominantly for short urban journeys. Symptoms include engine management lights, loss of power, and emissions-related fault codes. Some owners report DPF issues recurring shortly after replacement.

Repair options

Repair tierDealer priceSpecialist price
DPF forced regeneration£150-£300£100-£200
DPF replacement£600-£1,200£400-£800
Our recommendation
Regular motorway driving at 40+ mph for 20+ minutes is the best way to prevent DPF clogging. If the DPF warning light appears, take the car for a motorway run to allow regeneration. If the problem persists, have the DPF inspected by a specialist.

Don't Let Engine Failure Write Off Your Renault Laguna

Whether you're facing a blown turbo on a 1.5 dCi, a clogged EGR on a 1.9 dCi, or a snapped timing belt on either engine, replacement doesn't have to mean scrapping your Laguna. Every rebuilt engine supplied through EnginesMarket comes with upgraded components addressing the original failure point, a minimum 12-month unlimited-mileage warranty, and nationwide delivery or supply & fit options. Compare specialist quotes today - it's free, and you might be surprised how affordable a proper rebuild can be.

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FAQ

Renault Laguna 1.5 / 1.9 dCi Engine ReplacementFrequently Asked Questions

Everything Renault Laguna 1.5 / 1.9 dCi owners usually ask before choosing a rebuilt, reconditioned or used replacement engine.

Why Choose Us

Compare Renault Laguna 1.5 / 1.9 dCi Engine Prices Today

Comparing quotes for your Renault Laguna 1.5 or 1.9 dCi engine replacement is free, quick, and carries no obligation. Whether you need a K9K 780 for a Laguna III, an F9Q 760 for a Laguna II, or any other dCi code, our network of UK specialists will provide transparent, itemised pricing. Enter your registration above and get matched with trusted Renault Laguna dCi engine specialists today. Remember - 1.5 dCi and 1.9 dCi engines are not interchangeable, so always verify your engine code before ordering.

200+200+ Laguna dCi engines supplied through our network
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