Mazda CX-3 Engine ReplacementReconditioned & Used Prices Compared

Rebuilt Mazda CX-3 engines typically cost £1,800-£3,500 for the 1.5L diesel (S5) and £2,200-£4,200 for the 2.0L petrol (PE), supply only. Supply & fit adds £600-£1,200 depending on location and garage rates.

• Diesel S5 engines cheaper due to higher failure volume and parts availability
• Petrol PE engines cost more but fail less often
• Prices vary by engine code, variant and supplier warranty terms
• Always compare multiple quotes before committing

The 2.0L Skyactiv-G petrol (PE family) is significantly more reliable than the 1.5L Skyactiv-D diesel (S5 family), with far fewer catastrophic failure reports in UK owner forums and specialist networks.

• PE petrol engines rarely suffer runaway or DPF-related destruction
• S5 diesel engines have documented DPF, injector and exhaust flap issues
• Petrol CX-3s often reach 100k+ miles without major engine work
• Diesel replacement demand is driven by specific failure patterns, not age

DPF blockage from short journeys, injector leaks causing oil dilution, and the 2015-2017 runaway diesel recall are the three most common causes of catastrophic failure on Mazda CX-3 1.5L Skyactiv-D engines.

• DPF cannot regenerate on frequent short trips, leading to blockage
• Faulty injectors leak diesel into crankcase, destroying bearings
• Runaway condition occurs when engine ingests its own oil
• All three issues can destroy the engine if not addressed immediately

Yes, if your CX-3 is in good condition elsewhere and valued at £8,000-£15,000, a rebuilt engine (£1,800-£4,200) is often more cost-effective than part-exchanging or scrapping the vehicle.

• CX-3 residual values support investment in engine replacement
• Rebuilt engines include 12-month warranty for peace of mind
• Supply & fit options available nationwide through specialist network
• Compare quotes to ensure you get best value for your variant

Professional fitting is strongly recommended for Mazda CX-3 engines due to Skyactiv-specific procedures, DPF/injector coding requirements and the risk of costly errors on a complex modern powertrain.

• Skyactiv engines require specialist tools and diagnostic equipment
• DPF and injector systems need ECU coding after replacement
• Incorrect installation can void warranty and cause secondary damage
• Supply & fit quotes include labour, coding and road test

Your Mazda CX-3 engine code (e.g., S5-DPTS, PE-VPR) is printed on the engine block near the oil filter housing, listed on your V5C logbook under "engine number", or can be identified instantly by entering your registration above.

• Engine code is critical for ordering compatible replacement units
• S5 codes denote 1.5L diesel; PE codes denote 2.0L petrol
• DVLA lookup via registration is fastest and most reliable method
• Our specialists can verify code compatibility before dispatch

Every rebuilt, reconditioned or remanufactured Mazda CX-3 engine supplied through EngineMarket includes a minimum 12-month unlimited mileage warranty from UK specialists, with some offering 24-month coverage on remanufactured units.

• Warranty covers parts and labour for manufacturing defects
• Unlimited mileage terms apply across the UK network
• Always confirm exact terms with your chosen supplier before ordering
• Warranty documentation provided with every engine dispatch

Delivery of a rebuilt Mazda CX-3 engine typically takes 2-5 working days; professional fitting at a specialist garage usually requires 6-8 hours for petrol units and 8-10 hours for diesel due to DPF/injector coding.

• Supply-only engines dispatched within 48 hours of order confirmation
• Fitting time varies by variant, drivetrain and garage workload
• Diesel units require additional time for emissions system coding
• Many specialists offer courtesy cars or collection/delivery services

No, Mazda CX-3 1.5L diesel (S5) and 2.0L petrol (PE) engines are completely different designs and cannot be swapped without extensive modification to wiring, fuel system, exhaust and ECU - not cost-effective.

• S5 diesel and PE petrol have different mounting points and electronics
• Conversion would require custom wiring loom and ECU remapping
• Exhaust, fuel tank and emissions systems are fuel-type specific
• Stick with the original fuel type for your CX-3 variant

If your 2015-2017 Mazda CX-3 diesel hasn't had the recall software update, contact Mazda immediately for the free fix; if the engine has already run away, a rebuilt S5 engine with updated software is the only viable replacement option.

• Recall applies to CX-3 diesel models built Jan 2015-Nov 2017
• Free software update prevents runaway if engine is still intact
• Once runaway occurs, engine is typically destroyed beyond repair
• Rebuilt S5 engines from our network include updated ECU software pre-installed