Mazda 3 1.5 SkyactivD Engine Replacement - Compare Prices & Get Quotes
Get quotes today from trusted UK Mazda 3 1.5 Skyactiv-D engine specialists. Compare prices on reconditioned, rebuilt and used engines for your efficient 105hp diesel Mazda 3.
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From DPTS / S5-DPTR - from £2,000 to £3,800 [ESTIMATED]
Used from £400 · Reconditioned from £1,200 · Common codes: S5-DPTS, S5-DPTR, S5Y7, S5Y8
From £400
Tested, bare/short engine
From £1,200
Rod bearings addressed, tested
From quote
Upgraded bearings, full teardown, revised valvetrain
Secure enquiry - no spam, no pressure. Genuine quotes only from vetted UK Mazda 3 1.5 Skyactiv-D specialists.
3 Simple Steps3 Simple Stepsto Finding the Best Mazda 3 1.5 Skyactiv-D Replacement Engineto Finding the Best Mazda 3 1.5 Skyactiv-D Replacement Engine
Most replacements completed within 3-5 days.
Variant HistoryMazda 3 1.5 Skyactiv-D - Engine History & Specs at a Glance
The Mazda 3 1.5 Skyactiv-D was introduced to the UK market in December 2015 as the most fuel-efficient diesel in the BM/BN-generation Mazda 3 range . Already established in the Mazda2 and CX-3, the 1.5-litre diesel offered 105hp and an impressive 74.3mpg combined, making it a compelling choice for high-mileage drivers .
Variant HistoryMazda 3 1.5 Skyactiv-D - Engine History & Specs at a Glance
The Mazda 3 1.5 Skyactiv-D was introduced to the UK market in December 2015 as the most fuel-efficient diesel in the BM/BN-generation Mazda 3 range . Already established in the Mazda2 and CX-3, the 1.5-litre diesel offered 105hp and an impressive 74.3mpg combined, making it a compelling choice for high-mileage drivers .
Mazda 3 1.5 Skyactiv-D
Fuel TypeDiesel
Engine Size Range1.5-litre (1,498cc)
Power Output105hp (77kW) @ 4,000rpmEngine History Timeline
1.5 Skyactiv-D introduced in Mazda 3 (BM/BN generation) from 1 December offering 105hp and 270Nm torque
Engine codes S5-DPTS and S5-DPTR 1,498cc, 77kW (105hp), 99g/km CO2 with manual transmission
Production continues; engine codes S5Y7 and S5Y8 also used
End of 1.5 Skyactiv-D production; replaced by 1.8 Skyactiv-D in the BP-generation Mazda 3 from January 2019
Key Specs Snapshot
Fuel TypeDieselEngine Size Range1.5-litre (1,498cc)Power Output105hp (77kW) @ 4,000rpmTorque270Nm @ 1,600-2,500rpmYears Produced2015-2019 (BM/BN generation)Every engine fitted to the Mazda 3 1.5 Skyactiv-D is covered below, with UK rebuilt pricing and known failure points.
Mazda 3 1.5 Skyactiv-D Engine Codes - Specifications & Replacement CostMazda 3 1.5 Skyactiv-D Engine Codes - Specifications & Replacement Cost
1.5-litre Diesel Skyactiv-D (2015-2019)
Power Output105hp (77kW) @ 4,000rpmTorque270Nm @ 1,600-2,500rpmYears Fitted2015-2019 (BM/BN generation)
Compatible Trim Levels
- SE-L
- SE-L Nav
- Sport
- Sport Nav
- GT Sport
- Skylease+
Mazda 3 1.5 Skyactiv-D engine replacement
Find your exact engine code, specs and UK replacement cost guide.
Used
Tested, ready-to-fit engine
£400-£1,200 [ESTIMATED]
Reconditioned
Addressed known issues, tested
£1,200-£2,200 [ESTIMATED]
Rebuilt
Full teardown, upgraded internals
£2,000-£3,800 [ESTIMATED]
Common Failure
The 1.5 Skyactiv-D can suffer from DPF blockage, particularly in vehicles used predominantly for short urban journeys . P1336 fault codes can indicate timing chain stretch, though sensor issues (crankshaft and camshaft sensors) and exhaust pressure sensor failures can also trigger this code . Fuel injector issues can cause excessive black smoke and DPF regeneration failure .
The Mazda 3 1.5 Skyactiv-D (S5-DPTS) is a high-efficiency diesel with a timing chain, but it has known weak points that can drive replacement decisions: DPF blockage, P1336 timing chain/sensor codes, and injector issues. Rebuilt engines through EnginesMarket include upgraded components addressing these failure points, plus a minimum 12-month unlimited-mileage warranty.
Why the Mazda 3 1.5 Skyactiv-D DPF Fails
Affected Vehicles
Mazda 3 1.5 Skyactiv-D (S5-DPTS, 2015-2019)
Typical Failure Mileage
60,000-120,000 miles
Root Cause
The 1.5 Skyactiv-D's DPF can fail to regenerate properly, particularly if the car is used for short urban journeys where the exhaust doesn't reach the required temperature for active regeneration . Reported symptoms include excessive black smoke, DPF warning lights, and limp mode .
Why It Happens
The 1.5 Skyactiv-D's DPF can fail to regenerate properly, particularly if the car is used for short urban journeys where the exhaust doesn't reach the required temperature for active regeneration . Reported symptoms include excessive black smoke, DPF warning lights, and limp mode .
Dealer (parts + labour)
£300-£500
Specialist (parts + labour)
£150-£300
What it involves
Professional DPF cleaning with forced regeneration
Suitability
First port of call; effective if caught early
1 - 2 daysDealer (parts + labour)
£800-£1,200
Specialist (parts + labour)
£500-£900
What it involves
Replace DPF with genuine or OEM-quality unit
Suitability
When DPF is physically damaged or blocked beyond cleaning
1 - 2 daysDealer (parts + labour)
£3,500-£5,000
Specialist (parts + labour)
£2,000-£3,800
What it involves
Supply & fit, upgraded components, 12-month warranty
Suitability
When DPF issues have caused engine oil dilution or injector damage
1 - 2 daysAll prices are indicative UK market ranges based on current UK specialist supplier data.| Repair Tier | Dealer (Parts + Labour) | Specialist (Parts + Labour) | What It Involves | Suitability | Estimated Time |
|---|---|---|---|---|---|
 DPF Clean Minor | £300-£500 | £150-£300 | Professional DPF cleaning with forced regeneration | First port of call; effective if caught early | 1 - 2 days |
 DPF Replacement Best Value | £800-£1,200 | £500-£900 | Replace DPF with genuine or OEM-quality unit | When DPF is physically damaged or blocked beyond cleaning | 1 - 2 days |
Full Replacement - rebuilt engine Best Value | £3,500-£5,000 | £2,000-£3,800 | Supply & fit, upgraded components, 12-month warranty | When DPF issues have caused engine oil dilution or injector damage | 1 - 2 days |
Vehicle Value Check
Vehicle Value Check
A typical 2016-2018 Mazda 3 1.5 Skyactiv-D with 60k-100k miles is worth approximately £6,000-£12,000 [INDUSTRY ESTIMATE]. - Vehicle worth under ~£5,000: DPF clean or replacement typically makes more sense than a full rebuilt unit - Vehicle worth ~£5,000-£8,000: evaluate both; reconditioned is viable if keeping the car 2+ years - Vehicle worth ~£8,000-£12,000: reconditioned/rebuilt usually justifies the premium via warranty and reliability - Vehicle worth £12,000+: replacement cost is typically small relative to vehicle value
Our Recommendation
Our Recommendation
For a 1.5 Skyactiv-D, regular motorway driving (30+ minutes at 2,000rpm+) allows passive regeneration and extends DPF life . If DPF issues persist, check injector condition - faulty injectors can cause soot overload that kills a new DPF quickly .
Don't Let Engine Failure Write Off Your Mazda 3 1.5 Skyactiv-D
The Mazda 3 1.5 Skyactiv-D is an economical, high-mileage diesel, but its DPF, injector, and sensor systems require careful attention. A full rebuilt engine from EnginesMarket includes upgraded components addressing these failure points, backed by a minimum 12-month unlimited-mileage warranty. Compare quotes across used, reconditioned and rebuilt options - and get the work done by specialists, not main dealers.
Compare rebuilt S5-DPTS Mazda 3 1.5 Skyactiv-D engine prices
12-Month Minimum
UK Specialists Vetted
Best Price GuidanceImportant 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 Mazda 3 1.5 Skyactiv-D. Every engine supplied through EnginesMarket carries a minimum 12-month unlimited mileage warranty - always confirm exact terms with your chosen supplier."
Mazda 3 1.5 Skyactiv-D Engine ReplacementFrequently Asked Questions
Question 1How much does a Mazda 3 1.5 Skyactiv-D engine replacement cost-
A used Mazda 3 1.5 Skyactiv-D engine (S5-DPTS) costs £400-£1,200 supply-only, while a reconditioned unit is £1,200-£2,200 and a full rebuilt engine £2,000-£3,800 [ESTIMATED]. Fitted costs add £390-£520 labour at a specialist. Compare quotes through EnginesMarket to find the best deal for your exact year and mileage.
- Used: £400-£1,200 supply-only
- Reconditioned: £1,200-£2,200 supply-only
- Rebuilt: £2,000-£3,800 supply-only
Question 2What are the signs of DPF problems in a Mazda 3 1.5 Skyactiv-D-
Symptoms include excessive black smoke from the exhaust, a DPF warning light on the dashboard, reduced power or limp mode, and the car going into regeneration mode frequently . If a new DPF fills up very quickly after replacement, check the injectors - failing injectors can cause soot overload .
- Excessive black smoke from exhaust
- DPF warning light
- Reduced power or limp mode
- Frequent regeneration cycles
Question 3Is it worth replacing the engine in a Mazda 3 1.5 Skyactiv-D-
A full rebuilt S5-DPTS engine costs around £2,000-£3,800 supply-only [ESTIMATED]. For a 2016-2018 Mazda 3 1.5 Skyactiv-D worth £6,000-£12,000, replacement is typically financially sensible - especially with a 12-month warranty. Always factor in labour (£390-£520) and the value of the car.
- 2016-2018 values £6,000-£12,000: replacement viable
- Always factor in labour and warranty value
Question 4How long does a Mazda 3 1.5 Skyactiv-D engine replacement take-
A specialist workshop typically completes a full S5-DPTS engine swap in 8-10 hours. With parts sourcing and delivery factored in, allow 2-3 days from quote to car back on the road. Supply & fit options through EnginesMarket streamline the process by pairing you with a specialist who has the engine in stock.
- 8-10 hours specialist labour
- 2-3 days typical turnaround
- Supply & fit options available
Question 5What's the difference between the Mazda 3 1.5 Skyactiv-D and the 2.2 Skyactiv-D-
The 1.5-litre Skyactiv-D produces 105hp and 270Nm, while the 2.2-litre produces 150hp and 380Nm . The 1.5 was introduced for the UK in December 2015, offering 74.3mpg and 99g/km CO2, making it significantly more economical than the 2.2 . The 2.2 is more powerful but has a worse reputation for timing chain and oil pickup issues.
- 1.5: 105hp, 74.3mpg, 99g/km CO2
- 2.2: 150hp, lower economy
- 1.5 introduced December 2015
Question 6Does the Mazda 3 1.5 Skyactiv-D have a timing belt or chain-
The Mazda 3 1.5 Skyactiv-D (S5-DPTS) uses a timing chain, not a belt . This is confirmed by Mazda's workshop manual and aftermarket catalogues from Gates and Dayco . The chain is designed to last the life of the engine with correct oil and regular servicing. Listen for rattling on cold start and check for P1336 codes as early warning signs .
- Timing chain, not belt
- No routine replacement interval
- Use 5W-30 oil specification
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