Mazda MX5 1.5 Skyactiv-G Engine Replacement - Compare Prices & Get Quotes
Get quotes today from trusted UK Mazda MX-5 1.5 Skyactiv-G engine specialists. Compare prices on reconditioned, rebuilt and used P5-VP and P5-VPS 1.5-litre Skyactiv-G engines with supply and fit options nationwide.
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From VP / P5-VPS - from £1,800 to £3,500
Used from £700 · Reconditioned from £1,800 · Common codes: P5-VP, P5-VPS, P5-VPR
From £700
Tested, bare/short engine
From £1,800
Rod bearings addressed, tested
From quote
Upgraded bearings, full teardown, revised valvetrain
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3 Simple Steps3 Simple Stepsto Finding the Best Mazda MX-5 1.5 Skyactiv-G Replacement Engineto Finding the Best Mazda MX-5 1.5 Skyactiv-G Replacement Engine
Most replacements completed within 3-5 days.
Variant HistoryMazda MX-5 1.5 Skyactiv-G - Engine History & Specs at a Glance
The Mazda MX-5 1.5 Skyactiv-G was introduced with the fourth-generation ND MX-5 in 2015, replacing the earlier 1.8-litre MZR engine from the NC generation. Developed as part of Mazda's Skyactiv technology programme, the 1.5-litre unit was engineered specifically for the lightweight roadster, featuring a high 13.0:1 compression ratio, direct injection, and a steel crankshaft to support high-revving performance up to 7,500 rpm.
Variant HistoryMazda MX-5 1.5 Skyactiv-G - Engine History & Specs at a Glance
The Mazda MX-5 1.5 Skyactiv-G was introduced with the fourth-generation ND MX-5 in 2015, replacing the earlier 1.8-litre MZR engine from the NC generation. Developed as part of Mazda's Skyactiv technology programme, the 1.5-litre unit was engineered specifically for the lightweight roadster, featuring a high 13.0:1 compression ratio, direct injection, and a steel crankshaft to support high-revving performance up to 7,500 rpm.
Mazda MX-5 1.5 Skyactiv-G
Fuel TypePetrol (naturally aspirated, direct injection)
Engine Size1.5L (1,496cc)
Power Output Range131-132hp (96-97kW) across the variant's historyEngine History Timeline
Mazda MX-5 ND launched with 1.5 Skyactiv-G (P5-VP / P5-VPS) producing 131hp (96kW) and 150Nm
ND facelift (ND2/ND3) introduces revised 1.5 Skyactiv-G with power increased to 132hp (97kW) and torque to 152Nm
Minor updates to Skyactiv-G engine continue with same 132hp output
Current-generation MX-5 continues with 1.5 Skyactiv-G as entry-level petrol option
1.5 Skyactiv-G remains available in UK MX-5 range
Key Specs Snapshot
Fuel TypePetrol (naturally aspirated, direct injection)Engine Size1.5L (1,496cc)Power Output Range131-132hp (96-97kW) across the variant's historyYears Produced2015-presentEvery engine fitted to the Mazda MX-5 1.5 Skyactiv-G is covered below, with UK rebuilt pricing and known failure points.
Mazda MX-5 1.5 Skyactiv-G Engine Codes - Specifications & Replacement CostMazda MX-5 1.5 Skyactiv-G Engine Codes - Specifications & Replacement Cost
1.5L Skyactiv-G Petrol (2015-2018)
Power Output131hp (96kW) at 7,000rpmTorque150Nm at 4,800rpmYears Fitted2015-2018 (ND pre-facelift)
Compatible Trim Levels
- SE
- SE-L
- Sport
- GT Sport
- Launch Edition
- 1.5 SE Nav
Find your exact engine code, specs and UK replacement cost guide.
Used
Tested, ready-to-fit engine
£700-£1,200
Reconditioned
Addressed known issues, tested
£1,800-£2,800
Rebuilt
Full teardown, upgraded internals
£2,500-£3,500
Common Failure
Carbon buildup on intake valves is an inherent drawback of the direct-injection Skyactiv-G design. Some owners report ignition coil failures, often attributed to low-quality fuel. Timing chain rattle on cold start can indicate tensioner wear, though less common on the 1.5-litre than on earlier Mazda engines.
The Mazda MX-5 1.5 Skyactiv-G (P5-VP, P5-VPS, P5-VPR) is generally a reliable, high-revving engine with a passionate enthusiast following. However, as with any direct-injection engine, carbon buildup is a known issue. Ignition coil failures and timing chain wear can occur on higher-mileage examples. Rebuilt engines through EnginesMarket include upgraded components addressing the original failure points, plus a minimum 12-month unlimited-mileage warranty.
Why the Mazda MX-5 1.5 Skyactiv-G Suffers from Intake Valve Deposits
Affected Vehicles
Mazda MX-5 1.5 Skyactiv-G (P5-VP, P5-VPS, P5-VPR, all years)
Typical Failure Mileage
60,000-100,000 miles
Root Cause
As a direct-injection engine, the Mazda MX-5 1.5 Skyactiv-G injects fuel directly into the combustion chamber rather than across the intake valves. Over time, this allows carbon deposits to accumulate on the intake valves, leading to reduced power, rough idling, and potential misfire codes.
Why It Happens
As a direct-injection engine, the Mazda MX-5 1.5 Skyactiv-G injects fuel directly into the combustion chamber rather than across the intake valves. Over time, this allows carbon deposits to accumulate on the intake valves, leading to reduced power, rough idling, and potential misfire codes.
Dealer (parts + labour)
£400-£700
Specialist (parts + labour)
£300-£500
What it involves
Media blasting of intake valves to remove carbon deposits
Suitability
Effective restoration of power and smoothness. Typically lasts 40,000+ miles
1 - 2 daysDealer (parts + labour)
£4,000-£6,000
Specialist (parts + labour)
£2,500-£3,800
What it involves
Supply & fit of rebuilt 1.5 Skyactiv-G with cleaned/replaced components, 12-month warranty
Suitability
Only if carbon buildup has caused significant engine damage or other failures are present
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 |
|---|---|---|---|---|---|
 Walnut blast / intake cleaning Minor | £400-£700 | £300-£500 | Media blasting of intake valves to remove carbon deposits | Effective restoration of power and smoothness. Typically lasts 40,000+ miles | 1 - 2 days |
 Full Replacement - rebuilt/reconditioned engine Best Value | £4,000-£6,000 | £2,500-£3,800 | Supply & fit of rebuilt 1.5 Skyactiv-G with cleaned/replaced components, 12-month warranty | Only if carbon buildup has caused significant engine damage or other failures are present | 1 - 2 days |
Vehicle Value Check
Vehicle Value Check
A typical Mazda MX-5 1.5 Skyactiv-G (ND 2015-2019) is worth approximately £6,000-£15,000 depending on mileage, condition, and specification. ND facelift (2019-present) values range from £12,000-£20,000. Limited editions and low-mileage examples command higher values. - Vehicle worth under ~£5,000: repair or used engine 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-£15,000: reconditioned/rebuilt usually justifies the premium via warranty and reliability. - Vehicle worth £15,000+: replacement cost is typically small relative to vehicle value.
Our Recommendation
Our Recommendation
For the Mazda MX-5 1.5 Skyactiv-G, preventative maintenance is key. If you're experiencing rough idle or reduced power, a walnut blast intake cleaning is a cost-effective fix (£300-£500 through a specialist) and should be your first port of call. A full engine replacement is rarely necessary for carbon buildup alone - only consider replacement if the engine has suffered catastrophic damage from timing chain failure, severe oil consumption, or other causes.
Don't Let Engine Issues Write Off Your Mazda MX-5 1.5 Skyactiv-G
Whether it's carbon buildup, timing chain wear, or ignition coil failure, the Mazda MX-5 1.5 Skyactiv-G is a robust engine when properly maintained. Every rebuilt unit supplied through EnginesMarket comes with upgraded components addressing the original failure points and a minimum 12-month unlimited-mileage warranty. Compare specialist prices today and save on main dealer costs; supply and fit available nationwide.
Compare rebuilt P5-VP/P5-VPR Mazda MX-5 1.5 Skyactiv-G 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 MX-5 1.5 Skyactiv-G. Every engine supplied through EnginesMarket carries a minimum 12-month unlimited mileage warranty - always confirm exact terms with your chosen supplier."
Mazda MX-5 1.5 Skyactiv-G Engine ReplacementFrequently Asked Questions
Question 1How much does a Mazda MX-5 1.5 Skyactiv-G engine replacement cost-
A Mazda MX-5 1.5 Skyactiv-G engine replacement typically costs £2,500-£3,800 for a rebuilt unit with supply and fit through a specialist. Used engines start from around £700-£1,400, while main dealer replacement can exceed £4,000.
- Rebuilt P5-VP/P5-VPR: £2,500-£3,800 fitted
- Used P5-VP/P5-VPR: £700-£1,400 (engine only)
- Main dealer: £4,000-£6,000
Question 2What are the signs of timing chain wear in a Mazda MX-5 1.5 Skyactiv-G-
The most common early warning sign is a rattling noise from the engine on cold start. As the problem worsens, you may notice a check engine light, rough running, or VVT fault codes.
- Cold-start rattle is the #1 warning sign
- Check engine light may illuminate
- VVT fault codes may be set
Question 3Is it worth replacing the engine in a Mazda MX-5 1.5 Skyactiv-G-
Yes - if the chassis and body are in good condition, a rebuilt 1.5 Skyactiv-G with upgraded components adds significant value and extends the vehicle's life. Given the vehicle's value (£6,000-£20,000+), replacement cost is typically well below the car's worth on most examples.
- Rebuilt engine adds significant value to a well-maintained roadster
- 12-month unlimited mileage warranty provides peace of mind
- Upgraded components address original failure points
Question 4How long does a Mazda MX-5 1.5 Skyactiv-G engine replacement take-
A Mazda MX-5 1.5 Skyactiv-G engine replacement typically takes 2-5 days total. This includes 1-2 days for removal and fitting, plus additional time if the replacement engine requires preparation.
- Used engine swap: 1-2 days
- Rebuilt engine supply & fit: 2-4 days
- Allow extra time for delivery if engine needs to be sourced
Question 5What's the difference between the P5-VP and P5-VPR Mazda MX-5 1.5 Skyactiv-G engines-
The P5-VP (2015-2018, pre-facelift ND) produces 131hp, while the P5-VPR (2018-present, facelift ND) produces 132hp. Both are 1.5-litre naturally aspirated Skyactiv-G petrol engines with direct injection.
- P5-VP: 131hp, pre-facelift ND (2015-2018)
- P5-VPR: 132hp, facelift ND (2018-present)
- Both share the same 1,496cc displacement
Question 6Does the Mazda MX-5 1.5 Skyactiv-G have a timing belt or chain-
The Mazda MX-5 1.5 Skyactiv-G uses a timing chain, not a rubber timing belt. The chain is designed for the life of the engine and does not require routine replacement, though it can stretch on higher-mileage examples or if oil changes have been missed.
- Timing chain, not belt - no routine replacement interval
- Chain stretch possible on high-mileage examples
- Regular oil changes essential for chain longevity
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