Mitsubishi ASX Engine ReplacementReconditioned & Used Prices Compared

A rebuilt Mitsubishi ASX engine typically costs £1,450-£3,500 supply-only, depending on engine code and variant. Diesel 4N13/4N14 units sit at the higher end, while petrol 4B11/4A92 are generally more affordable.

• Prices vary by engine code, variant and supplier
• Supply & fit adds £450-£950 labour on average
• Reconditioned options can reduce upfront cost
• 12-month warranty standard on rebuilt units

The Mitsubishi ASX used petrol codes 4A92, 4B11, 4B12 and diesel codes 4N13, 4N14, 9HD across its 2010-2019 UK production run. Always verify your exact code via registration check.

• 4N13: 1.8L diesel (most common UK variant)
• 4B11: 2.0L petrol (most reliable petrol option)
• 9HD: 1.6L diesel (PSA-sourced, 2015+)
• Enter reg above to confirm your exact engine code

The 4N13 1.8L diesel is generally robust but suffers EGR cooler failure between 60k-90k miles. Rebuilt units with upgraded EGR components offer improved long-term reliability.

• EGR cooler failure is the most common issue
• Turbo seals can leak oil at higher mileage
• Regular servicing extends engine life significantly
• Rebuilt engines address known failure points

Timing chain stretch on 4B11/4B12 petrol engines occurs when the tensioner loses pressure, typically after 80k miles. Early rattling on cold start is the key warning sign.

• Listen for rattling noise on cold startup
• Oil changes critical for tensioner longevity
• Preventative replacement cheaper than engine damage
• Rebuilt engines include upgraded chain components

Engine swaps between diesel and petrol are not recommended for the Mitsubishi ASX due to ECU, wiring, transmission and emissions compliance complexities. Stick with the original fuel type.

• ECU and wiring harnesses are fuel-type specific
• Transmission compatibility issues likely
• MoT emissions testing would fail post-swap
• Rebuilt same-fuel engine is the practical solution

Supply-only rebuilt engines typically dispatch within 1-3 working days. Full supply & fit services usually complete the replacement in 1-2 days once the engine arrives at the garage.

• Engine build time: 1-3 working days average
• Delivery: Next-day or 48-hour UK courier options
• Garage fitting: 1-2 days depending on variant
• 4WD models may require additional time for transfer case

All rebuilt Mitsubishi ASX engines supplied through EngineMarket include a minimum 12-month unlimited mileage warranty. Reconditioned and used engines may offer shorter terms - always confirm with your supplier.

• 12-month unlimited mileage standard on rebuilt units
• Warranty covers parts and labour for engine-related faults
• Keep service records to maintain warranty validity
• Supply & fit warranties often include installation

Some Mitsubishi ASX engine codes like 4B11 and 4N13 were used across multiple Mitsubishi models, but compatibility depends on ECU, mounts and ancillaries. Always verify via registration or engine code.

• 4B11 used in Outlander, Lancer and ASX
• 4N13 shared with Outlander and Lancer diesel
• ECU coding and mounts may differ between models
• Registration check ensures exact compatibility

Major warning signs include excessive smoke, knocking noises, loss of power, or coolant/oil mixing. If diagnostics confirm internal damage, a rebuilt engine is often more economical than repair.

• Blue smoke indicates oil burning or turbo failure
• Knocking suggests bearing or piston damage
• Coolant in oil points to head gasket or EGR failure
• Get a specialist diagnostic before deciding

If your ASX is otherwise in good condition and valued above £3,000, a rebuilt engine (£1,450-£3,500) often extends life cost-effectively versus buying a replacement vehicle.

• Consider vehicle condition beyond the engine
• Rebuilt engine cost vs ASX market value
• Supply & fit adds convenience for non-DIY owners
• Warranty protection adds peace of mind