1.0 MPI Petrol Engines- from £895 to £1,650
Rebuilt units from £895 · Common codes: CHY, CJZB
SEAT ENGINE MARKETPLACE
SEAT Mii Engine Replacement - Compare Prices & Save
Get quotes from trusted UK SEAT Mii engine specialists. Compare used and reconditioned prices for 1.0L - CHYA, CHYB & DAFA covered. Find the best value for your budget.
Supply& Fit Available
12-Month Warranty
Nationwide Delivery
100+ Suppliers
1.0 TSI Petrol Engines- from £1,150 to £2,100
Rebuilt units from £1,150 · Common codes: CHYB, CZPB
1.2 TDI Diesel Engines- from £1,250 to £2,300
Rebuilt units from £1,250 · Common codes: CFWA, CFWD
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Engine replacement near me - UK-wide specialist network
Compare reconditioned, rebuilt & used engine prices
Supply & fit available - parts and labour from vetted specialistsInstant engine replacement quote - 100% free, no obligationEngine replacement near me - UK-wide specialist networkCompare reconditioned, rebuilt & used engine pricesSupply & fit available - parts and labour from vetted specialistsHow It Works
3 Simple Steps3 Simple Stepsto Finding the Best SEAT Mii Replacement Engineto Finding the Best SEAT Mii Replacement Engine
12-Month Warranty
Supply & Fit Available
Nationwide Delivery
Trusted UK Suppliers
Most replacements completed within 3-5 days.
Live UK Engine Market Data
Average Market Prices
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↻ Last updated: 4 Aug 26, 9:26
Customer Reviews
Trusted by SEAT Mii Owners Across the UK
Rated 4.8 out of 5 by 1,081 verified customers who sourced reconditioned and used SEAT Mii engines through EngineMarket.
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“Thanks to EngineMarket, I saved over £1,200 on my engine replacement and got matched with a great local specialist within the hour.”
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“Got three quotes within an hour and chose the best deal easily. The whole process was quick, clear and stress-free.”
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Variants We Cover
Seat Mii Engine Replacement- All Variants Covered
Seat Mii S 1.0 MPI
CHY 1.0L Petrol
Rebuilt Engines: £895-£1,450
Seat Mii SE 1.0 MPI
CJZB 1.0L Petrol
Rebuilt Engines: £950-£1,550
Seat Mii SE Technology 1.0 TSI
CHYB 1.0L Petrol
Rebuilt Engines: £1,150-£1,850
Seat Mii FR 1.0 TSI
CZPB 1.0L Petrol
Rebuilt Engines: £1,250-£2,100
Seat Mii SE 1.2 TDI
CFWA 1.2L Diesel
Rebuilt Engines: £1,250-£2,000
Seat Mii Style 1.2 TDI
CFWD 1.2L Diesel
Rebuilt Engines: £1,250-£2,000
Seat Mii XCELLENCE 1.0 TSI
CHYB 1.0L Petrol
Rebuilt Engines: £1,150-£1,850
Seat Mii FR Sport 1.0 TSI
CZPB 1.0L Petrol
Rebuilt Engines: £1,250-£2,100
Seat Inca S 1.0 EcoFuel
CHY 1.0L Petrol
Rebuilt Engines: £1,050-£1,750
Seat Inca SE 1.2 TDI
CFWA 1.2L Diesel
Rebuilt Engines: £1,250-£2,000
Seat Inca SE Technology 1.0 TSI
CHYB 1.0L Petrol
Rebuilt Engines: £1,150-£1,850
Seat Inca FR 1.0 TSI
CZPB 1.0L Petrol
Rebuilt Engines: £1,250-£2,100
Not sure which variant your Seat Mii is- Enter your registration number above- we’ll identify the exact sub-model, engine code and compatible replacement options instantly.
Mii
Engine Codes
Seat Mii Engine CodesFull Technical Specifications& Replacement Guide
Every engine code fitted to the Seat Mii across all generations, with technical specs, compatible variants and trims, known failure points, and average rebuilt prices from UK specialists. Select an engine code to compare quotes.
Petrol Engines
Extracted from detailed petrol and performance engine families across SEAT Mii variants.
CHY - 1.0L Petrol
Main replacement demand comes from timing-chain, cooling-system and performance thermal-management faults.
Compatible variants
SSE
Avg. rebuilt price
£895 - £1,450
Supply only
Technical specifications
- Fuel type
- Petrol
- Engine size
- 1.0L
- Power output
- 60-75 hp
- Years fitted
- 2012-2019
Common failures
- ●Main replacement demand comes from timing-chain, cooling-system and performance thermal-management faults.
- ●Confirm exact engine code and fitment before ordering.
- ●Ask for warranty and supply & fit terms.
Not sure which engine code?
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 Seat Mii engine specialists. Every rebuilt engine comes with a minimum 12‐month unlimited mileage warranty.
Mii
Common Problems
Seat Mii Engine Problems- What It Costs to Fix& When Replacement Makes Sense
The Seat Mii’s reliability is largely defined by its 1.0 MPI/TSI petrol and 1.2 TDI diesel families. While generally robust, these engines share known vulnerabilities with the wider VW Group, particularly regarding ignition coils(petrol) and DPF/EGR systems(diesel). Every rebuilt engine supplied through EngineMarket includes upgraded internal components...
Seat Mii Ignition Coil Failure- Why 1.0 MPI/TSI Engines Misfire
Seat Mii Ignition Coil Failure- Why 1.0 MPI/TSI Engines Misfire
Most affected vehicles
Seat Mii 1.0 MPI(CHY)1.0 TSI(CHYB
Seat Mii 1.0 MPI(CHY), 1.0 TSI(CHYB, CZPB) 2012-2019
Failure mileage range
40,000-60,000 miles
Typical failure window
Root cause
Ignition coils degrade over time, leading to misfires, rough running, and potential damage to the catalytic converter.
Repair options & estimated costs (UK ranges)
| Repair tier | Dealer price | Specialist price | What it involves | Longevity / suitability |
|---|---|---|---|---|
| Coil Replacement | £300- £500 | £200- £350 | Replace faulty ignition coils and spark plugs. | Effective if only coils are faulty. |
| Full Replacement- Rebuilt Engine | £2,500- £3,500 | £1,200- £1,800 | Supply and fit of rebuilt engine if misfires caused internal damage. | Necessary if misfires led to catalytic converter or engine damage. |
Our recommendation
If your Mii is misfiring, start with coil and plug replacement. If the engine has suffered internal damage due to prolonged misfiring, a rebuilt unit is the safer option.
Compare rebuilt 1.0 TSI engine prices for your Seat MiiReplacement Engine Options
Seat Mii Engine Types- Options, Costs& What to Expect
One sentence only. State that every engine type is available through the UK network with typical price ranges based on variant, engine code and budget.
Seat Mii Reconditioned Engines(Recon)£950- £1,650((supply only))
Seat Mii Rebuilt Engines£1,200- £2,100((supply only))
Seat Mii Used Engines£650- £1,100((supply only))
Seat Mii Remanufactured Engines£1,800- £2,800((supply only))
Seat Mii Refurbished Engines£800- £1,400((supply only))
Compare SEAT Mii engine prices with vetted UK suppliers
All engine types include a minimum 12‐month unlimited mileage warranty when sourced through EngineMarket. Prices are typical UK market ranges based on historical quote data from our network and depend on exact engine code, variant, mileage and supplier. Use our free comparison tool above- enter your registration to get tailored quotes for your specific Seat Mii within hours.
Engine Sizes
Seat Mii Engines by Size- Find the Right Displacement for Your Variant
Explain that every displacement fitted to the model is listed, with compatible engine codes, years and common failure notes.
The 1.0L three-cylinder engine was the standard powerplant for the Mii, offered in both naturally aspirated(MPI) and turbocharged(TSI) forms. Known for efficiency but prone to ignition and water pump issues.
⚙
Engine Code(s)
CHY, CJZB, CHYB, CZPB
▣
Compatible Models (UK)
S, SE, SE Technology, FR
ϟ
Power output
Verified by registration
△
Common Failure Points
Ignition coil failure, water pump leaks, timing chain tensioner wear(TSI).
Production Years: 2012-2019
Compare Seat Mii 1.0L petrol engine pricesFuel Type
Seat Mii Engines by Fuel Type
Choose your Seat Mii engine by fuel type to compare realistic replacement prices, known issues, and compatible UK supply options- from early 1.0 MPI to the latest 1.0 TSI.
Seat Mii Petrol Engines
PetrolPetrol powers the majority of UK Miis, offering smooth operation and no DPF worries, but requiring attention to ignition coils and water pumps.
Common Seat Mii Petrol Engine Families
- •CHY/CJZB- 1.0 MPI, simple but prone to coil failures.
- •CHYB/CZPB- 1.0 TSI, efficient but timing chain watchpoint.
Found In
- •2012-2019 All Generations- All petrol codes.
Known For
- •Quieter, smoother refinement than diesel equivalents.
- •Ignition coil failures on early 1.0 MPI units.
- •Higher fuel costs compared to diesel, especially for 1.0 TSI.
Typical Petrol Models
- •S 1.0 MPI
- •SE 1.0 TSI
- •FR 1.0 TSI
1 of 2
Seat Mii Petrol Engines
PetrolPetrol powers the majority of UK Miis, offering smooth operation and no DPF worries, but requiring attention to ignition coils and water pumps.
Common Seat Mii Petrol Engine Families
- •CHY/CJZB- 1.0 MPI, simple but prone to coil failures.
- •CHYB/CZPB- 1.0 TSI, efficient but timing chain watchpoint.
Found In
- •2012-2019 All Generations- All petrol codes.
Known For
- •Quieter, smoother refinement than diesel equivalents.
- •Ignition coil failures on early 1.0 MPI units.
- •Higher fuel costs compared to diesel, especially for 1.0 TSI.
Typical Petrol Models
- •S 1.0 MPI
- •SE 1.0 TSI
- •FR 1.0 TSI
Seat Mii Diesel Engines
DieselDiesel Miis are rarer in the UK, offering superior torque and economy but requiring careful maintenance of emissions systems.
Common Seat Mii Diesel Engine Families
- •CFWA/CFWD- 1.2 TDI, DPF and EGR issues common.
Found In
- •2012-2015 Pre-Facelift- SE, Style.
Known For
- •Strong motorway fuel economy.
- •DPF and EGR issues in urban-driven examples.
- •AdBlue system faults in later Euro 6 models.
Typical Diesel Models
- •SE 1.2 TDI
- •Style 1.2 TDI
Not sure which fuel type your Seat Mii 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 Seat Mii specialists.
Engine YearsGet quotes for 2012-2015 Seat Mii replacement engines →
Seat Mii Engines by Year- What Was Fitted& WhenSeat Mii Engines by Year- What Was Fitted& When
Summarise that the section covers all major engine changes across the model's production timeline, organised so owners can quickly identify their engine and compare rebuilt engine prices from UK specialists.
⚙Key Changes
- ✓Launch of 1.0 MPI(CHY) petrol engines.
- ✓Introduction of 1.2 TDI(CFWA) diesel option.
- ✓MQB A0 platform shared with Ibiza and Polo.
▣Main Engines
CHY-1.0L petrol(60-75hp)
CFWA-1.2L diesel(75hp)
▰Popular Models
- •Seat Mii S
- •Seat Mii SE
- •Seat Mii Style
🔧Known For
- ✓Ignition coil failures in early 1.0 MPI models.
- ✓DPF problems in urban-driven 1.2 TDIs.
- ✓Solid build quality and spacious interior for class.
Engine Codes Covered:
CHYCFWANot sure which year your Seat Mii was built- Enter your registration number and we'll identify the exact engine, model year, and compatible replacement options instantly- all backed by a minimum 12‐month warranty from UK Seat Mii specialists.
FAQ