Get quotes from trusted UK MG 3 engine specialists. Compare used and reconditioned prices for 1.5L petrol - 15S4C covered. Find the best value for your budget.
Rebuilt units from £1,400
Common codes: 15S4C, 15S4E, 15S4F, 15S4G
Rebuilt units from £1,350
Common codes: 13S4C, 13S4C-AP
Rebuilt units from £2,200
Common codes: L3A, 15S4G
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Most replacements completed within 3-5 days.
The cards below cover the main engines fitted to the MG 3 in the UK, including documented failure causes, variant production years, and typical rebuilt engine costs based on current UK market data. All prices reflect typical UK market ranges for supply-only rebuilt units.
Production History
Known Failures
Specs
Petrol · 1.5L · 105-109hp · Naturally Aspirated
Replacement Cost
Typical UK rebuilt engine: £1,400-£1,550 (supply only)
Production History
Known Failures
Specs
Petrol · 1.5L · 106-111hp · Naturally Aspirated
Replacement Cost
Typical UK rebuilt engine: £1,600-£1,750 (supply only)
Production History
Known Failures
Specs
Petrol Hybrid · 1.5L · 194hp combined · Mild-Hybrid System
Replacement Cost
Typical UK rebuilt engine: £2,200-£3,100 (supply only) Estimated from comparable L3A units - actual quotes may vary.
Customer Reviews
Rated 4.8 out of 5 by 1,081 verified customers who sourced reconditioned and used MG 3 engines through EngineMarket.
Jimmy
“Thanks to EngineMarket, I saved over £1,200 on my engine replacement and got matched with a great local specialist within the hour.”
Pete
“Got three quotes within an hour and chose the best deal easily. The whole process was quick, clear and stress-free.”
Sophie
“I wasn't sure what I needed, but they helped me identify the right engine and connected me with a trusted garage.”
Thanks to EngineMarket, I saved over £1,200 on my engine replacement and got matched with a great local specialist within the hour.”
- Jimmy, London
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Not sure which variant your MG 3 is- Enter your registration number above - we'll identify the exact sub-model, engine code and compatible replacement options instantly.
Every engine code fitted to the MG 3 across all generations, with technical specs, compatible variants and trims, known failure points, and average rebuilt prices from UK specialists. Select any engine code to compare quotes.
Extracted from detailed petrol and performance engine families across MG 3 variants.
Extracted from detailed petrol and performance engine families across MG 3 variants.
Can't find your engine code- Enter your registration number above - we'll instantly identify the exact unit, its technical specifications, and live replacement prices from UK MG 3 engine specialists. Every rebuilt engine comes with a minimum 12-month unlimited mileage warranty.
The MG 3's 1.5L VTi-Tech petrol engines dominate UK replacement enquiries, with timing chain wear on pre-2018 units and injector carbon buildup on facelift models...
Every rebuilt engine includes a minimum 12-month unlimited mileage warranty.
Why Early 15S4C Engines Fail Prematurely
Production Years: 2013 - 2018
Engine: 15S4C / 13S4C
Typical failure window
Undersized oil pump drive gear accelerates tensioner wear; high idle RPM calibration in MG 3 increases chain load compared to sister platforms.
| Repair Tier | Dealer Price | Specialist Price | What It Involves | Longevity / Suitability |
|---|---|---|---|---|
Minor - Preventative Chain Kit Minor | £950 - £1,400 | £650 - £950 | Replace timing chain, tensioner, guides before catastrophic failure | Viable only if caught early; does not address underlying gear design flaw |
Full Replacement - Rebuilt Engine Best Value | £2,800 - £3,600 | £1,400 - £1,750 | Supply & fit rebuilt 15S4C with upgraded OEM-spec tensioner (051103210B) and revised oil pump gear | Addresses root cause; 12-month warranty; best value for engines over 70k miles |
If your MG 3 shows early chain rattle below 60k miles, a preventative kit may extend life. Above 70k miles or with confirmed stretch, replacement with a rebuilt unit including the upgraded tensioner offers better long-term value and warranty protection.
Whether you're facing timing chain rattle, oil consumption, or hybrid system faults, EngineMarket makes it simple to compare prices from trusted UK MG 3 specialists. Every rebuilt engine includes upgraded components addressing the original failure point, plus a minimum 12-month unlimited mileage warranty and nationwide delivery. Compare quotes today and get back on the road without the main dealer premium.
Compare MG 3 Engine Replacement Prices Now →
Every MG 3 engine type is available through our UK network, with typical price ranges based on variant, engine code and budget.
MG 3 Reconditioned Engines (Recon)£1,400 - £1,750(supply only)
MG 3 Rebuilt Engines£1,600 - £2,100(supply only)
MG 3 Used Engines£950 - £1,400(supply only)
MG 3 Remanufactured Engines£1,850 - £2,400(supply only)
Complete engine replacement service including fitting, fluids and post-install diagnostics at local garages.
Every displacement fitted to the MG 3 in the UK is listed below, with compatible engine codes, production years and common failure notes to help you identify the correct replacement.
The 1.3L VTi-Tech was the entry-level engine for early MG 3 models, offering lower running costs and simpler maintenance. Primarily fitted to base 3Time variants before 2018, it shares the timing chain architecture of the larger 1.5L but with reduced power output.
| ENGINE CODE(S) | 13S4C, 13S4C-AP |
| COMPATIBLE MODELS (UK) | 3Time (AP32, 2013-2017), select fleet-spec examples |
Timing chain tensioner wear similar to 1.5L; water pump seal leaks after 60k miles
Not sure which engine size your MG 3 needs- Enter your registration number above - we'll identify the exact displacement, engine code and compatible replacement options instantly. All engines supplied through EngineMarket include a minimum 12-month unlimited mileage warranty from UK MG 3 specialists.
MG 3 Engines Fuel Type
Choose your MG 3 engine by fuel type to compare realistic replacement prices, known issues, and compatible UK supply options - from early 1.3L VTi-Tech to the latest Hybrid+ L3A.
The MG 3 was offered exclusively with naturally aspirated petrol engines across all UK generations, with the 1.5L VTi-Tech dominating replacement enquiries due to timing chain and oil consumption concerns.
Not sure which fuel type your MG 3 has- Enter your registration number above to instantly identify your engine code, fuel system and compatible replacement options - all backed by a minimum 12-month unlimited mileage warranty from UK MG 3 specialists.
This section covers all major engine changes across the MG 3's UK production timeline, organised so owners can quickly identify their engine and compare rebuilt engine prices from UK specialists.
MG 3 engine replacement costs from £1,400 for a reconditioned 15S4C unit, rising to £3,100 for Hybrid+ L3A specialist rebuilds. Get your personalised quote in 60 seconds.
The 15S4C 1.5L petrol is the most common MG 3 engine, fitted to 3Form, 3Style and Excite models from 2013-2018. Verify your code on the engine block plate.
All reconditioned MG 3 engines are matched against your engine code - if it doesn't fit, we cover return costs. Enter your reg to verify compatibility before ordering.
Most MG 3 engine replacements are completed in 48 hours from acceptance, with express options available. Enter your postcode for local specialist turnaround times.
All reconditioned MG 3 engines include a minimum 12-month unlimited mileage warranty - extendable to 24 months with some suppliers. Confirm exact terms at checkout.
MG 3 engine swaps between 15S4C/15S4E are possible but require ECU reprogramming. Contact our specialists for compatibility advice before ordering.
Used MG 3 engines can save £200-£400 but carry higher risk - reconditioned units include warranty and critical upgrades for peace of mind.
Your MG 3 engine code is stamped on the engine block near the oil filter housing - see our photo guide or enter your VIN to decode instantly.
Notify your insurer of your MG 3 engine replacement - recon units maintain the original engine code with minimal premium impact in most cases.
Yes - spread the cost of your MG 3 engine replacement with 0% APR payment plans, subject to status. Apply at checkout for instant eligibility check.
Why Choose Us
Join thousands of UK drivers who compare MG 3 engine prices through our network of trusted specialists - every rebuilt and reconditioned unit backed by a minimum 12-month unlimited mileage warranty and nationwide delivery.
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UK Engine Replacement Services for MG 3
Covering every variant from budget 3Time to performance Hybrid+, with supply-only or full supply & fit available nationwide.
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