Renault Logan Engine ReplacementCompare Prices & Save

Yes, if you find a used or rebuilt engine under £500-£800. The Logan's low residual value means expensive repairs rarely make sense, but a budget replacement can extend life cost-effectively.

• Used K7M/K9K engines available from £295-£795 supply only
• Rebuilt units from £425 offer upgraded reliability with warranty
• Fitting costs £350-£650; compare total cost vs car value
• Ideal for Logans in good body/chassis condition under £1,500 value

The 1.6L 8V petrol K7M 710 is generally the most trouble-free, with simple chain-driven design and strong parts availability across the B0 platform.

• K7M timing chain is robust but tensioner can wear after 90k miles
• Avoid early K9K diesel units if you do mostly short journeys
• 1.6L 16V K4M offers more power but needs belt maintenance
• Always verify service history regardless of engine choice

Typical UK rebuilt engine prices range from £395 for a 1.4L petrol K7J to £1,450 for a late 1.5L dCi K9K 612, supply only; fitting adds £350-£650.

• Used engines start around £295 but carry shorter warranties
• Reconditioned units balance cost and reliability at £425-£1,250
• Supply & fit packages available from £795 total for budget options
• Always get multiple quotes; prices vary by engine code and location

Yes, many B0 platform engines are interchangeable; Clio III, Sandero, Modus and Kangoo units with matching codes (K7M, K9K, K4M) will fit your Logan with minor adaptations.

• Verify engine code match first (e.g., K7M 710 to K7M 710)
• ECU coding may be required for post-2007 models with immobiliser
• Mounting points and ancillaries are largely shared across B0 platform
• Using a more common Clio engine can improve availability and reduce cost

Most commonly EGR valve clogging, turbo actuator sticking, or injector wear on the K9K engine; diagnosis is essential before committing to expensive repairs.

• EGR cleaning or replacement costs £125-£545 specialist pricing
• Turbo actuator repair £195-£375; full turbo £495-£995
• Four new injectors can cost £800-£1,200 vs rebuilt engine from £495
• Get a proper diagnostic scan before deciding on repair vs replacement

The 1.6L 8V K7M uses a timing chain (generally maintenance-free but tensioner can wear); the 1.6L 16V K4M uses a timing belt requiring replacement every 60k miles or 5 years.

• K7M chain rattle on cold start indicates tensioner wear from 90k miles
• K4M belt failure can cause catastrophic engine damage if neglected
• Belt replacement costs £245-£495; chain tensioner £245-£425
• Always confirm your engine code before ordering replacement parts

With proper maintenance, K7M petrol engines can reach 150k+ miles; K9K diesel units often achieve 120k-180k miles but are sensitive to injector and EGR maintenance.

• Regular oil changes critical for K9K injector longevity
• Timing component checks recommended at 90k miles for peace of mind
• Short-journey driving accelerates DPF/EGR issues on diesel models
• Rebuilt engines with upgraded components can match or exceed original lifespan

Physical swaps are possible within the B0 platform (e.g., K7M to K4M) but require ECU coding, wiring adaptations, and may affect insurance; often not cost-effective for low-value Logans.

• Stick to same-fuel, same-code replacements for simplest fitment
• Performance upgrades rarely justify cost on budget Logan models
• Ensure any swap complies with MOT emissions and noise regulations
• Consult a specialist before attempting non-standard engine installations

A low-mileage K7M 710 or K9K 796 from a breaker with compression test results and at least a 3-month warranty offers the best balance of cost and reliability.

• Verify engine code matches your original unit exactly
• Request photos of the running engine or compression test report
• Confirm warranty terms and return policy before payment
• Factor in delivery costs; local breakers may offer better total value

Usually not; most Logan ECUs are not engine-locked, but post-2007 models with immobiliser may require coding to recognise the replacement engine's sensors.

• Pre-2007 Logans typically plug-and-play for same-code engines
• Post-2007 may need diagnostic tool to reset immobiliser adaptation
• Specialist fitters can handle coding as part of supply & fit service
• Always retain your original ECU and keys during engine replacement