MINI Convertible One Engine ReplacementCompare Prices & Get Quotes
Get quotes today from trusted UK MINI Convertible One engine specialists. Compare prices on reconditioned, rebuilt and used engines to secure the most cost-effective solution for your vehicle.
Supply & Fit Available
12-Month Warranty
Nationwide Delivery
100+ Suppliers

From £3,000 to £4,000
Used from £800 · Reconditioned from £1,500 · Common codes: W10B16A, N16B16A, B38A15A
From £800
Tested, bare/short engine
From £1,500
Rod bearings addressed, tested
From quote
Upgraded bearings, full teardown, revised valvetrain

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3 Simple Steps3 Simple Stepsto Finding the Best MINI Convertible One Replacement Engineto Finding the Best MINI Convertible One Replacement Engine
Most replacements completed within 3-5 days.
MINI Convertible One - Engine History & Specs at a Glance
When the MINI Convertible One launched, it offered accessible, open-top driving dynamics, evolving from a naturally aspirated 1.6L unit to a highly efficient turbocharged 3-cylinder engine without sacrificing the iconic MINI character.

MINI Convertible One - Engine History & Specs at a Glance
When the MINI Convertible One launched, it offered accessible, open-top driving dynamics, evolving from a naturally aspirated 1.6L unit to a highly efficient turbocharged 3-cylinder engine without sacrificing the iconic MINI character.
MINI Convertible One
Engine History Timeline
W10B16A 1.6L Naturally Aspirated Petrol, 90 hp (R52 generation launch)
N16B16A 1.6L Naturally Aspirated Petrol, 98 hp (R57 generation, revised engine management and minor internal refinements for better efficiency)
B38A15A 1.5L Turbocharged Petrol, 102 hp (F57 generation, architecture changed to a 3-cylinder turbocharged unit for improved torque and fuel economy)
Key Specs Snapshot
Every engine fitted to the MINI Convertible One is covered below, with UK rebuilt pricing and known failure points.
MINI Convertible One Engine Codes - Specifications & Replacement CostMINI Convertible One Engine Codes - Specifications & Replacement Cost
1.6L Petrol (2004-2008)
Compatible Trim Levels
- One
- One Pepper

Find your exact engine code, specs and UK replacement cost guide.
Used
Tested, ready-to-fit engine
£800-£1,200
Reconditioned
Addressed known issues, tested
£1,500-£2,000
Rebuilt
Full teardown, upgraded internals
£2,000-£2,800
Common Failure
Excessive oil consumption, coil pack failures, and early timing chain guide wear, typically occurring between 80,000 and 100,000 miles.


The MINI Convertible One is generally reliable for daily driving, but the N16 and B38 engines dominate replacement demand due to timing chain and cooling system vulnerabilities. Rebuilt engines through EnginesMarket include upgraded components addressing these original failure points, plus a minimum 12-month unlimited-mileage warranty.

Why the MINI Convertible One N16/B38 Wears Prematurely
Affected Vehicles
MINI Convertible One (N16B16A, B38A15A, 2009-present)
Typical Failure Mileage
70,000-100,000 miles
Root Cause
The timing chain tensioner can lose hydraulic pressure over time, allowing the chain to stretch and slap against the plastic guides. This creates a rattling noise on cold starts and can eventually lead to catastrophic internal engine damage if the chain jumps.
Why It Happens
The timing chain tensioner can lose hydraulic pressure over time, allowing the chain to stretch and slap against the plastic guides. This creates a rattling noise on cold starts and can eventually lead to catastrophic internal engine damage if the chain jumps.
Dealer (parts + labour)
£700-£1,100
Specialist (parts + labour)
£500-£800
What it involves
Replacing the chain, tensioner, and guides before catastrophic failure occurs.
Suitability
Good if caught early (no engine knock), extends life by 40k+ miles.
Dealer (parts + labour)
£4,000-£5,500
Specialist (parts + labour)
£2,500-£4,000
What it involves
Supply & fit of a rebuilt unit with upgraded timing components and a 12-month warranty.
Suitability
The only viable option once the chain has jumped or caused internal damage.
| Repair Tier | Dealer (Parts + Labour) | Specialist (Parts + Labour) | What It Involves | Suitability | Estimated Time |
|---|---|---|---|---|---|
Preventative Chain Kit Replacement Minor | £700-£1,100 | £500-£800 | Replacing the chain, tensioner, and guides before catastrophic failure occurs. | Good if caught early (no engine knock), extends life by 40k+ miles. | |
Full Replacement - rebuilt/reconditioned engine Best Value | £4,000-£5,500 | £2,500-£4,000 | Supply & fit of a rebuilt unit with upgraded timing components and a 12-month warranty. | The only viable option once the chain has jumped or caused internal damage. |
Vehicle Value Check
Vehicle Value Check
A typical R52/R57 MINI Convertible One (2004-2015) is currently valued between £1,500 and £4,500 depending on condition and mileage [THIRD-PARTY]. An F57 MINI Convertible One (2016-present) typically ranges from £6,000 to £12,000+ [THIRD-PARTY]. If your older vehicle is worth under £3,000, a full rebuilt engine may approach or exceed the car's value, making a quality used engine or preventative repair the more financially sensible route. For F57 models, a reconditioned or rebuilt engine is strongly justified by the warranty and restored reliability.
Our Recommendation
Our Recommendation
If you hear a rattling noise on startup but the MINI Convertible One engine still runs smoothly, invest in a preventative timing chain kit replacement immediately. If the engine has already suffered a chain jump or severe oil starvation, a full replacement with a rebuilt unit featuring upgraded components is the only reliable long-term solution.

Don't Let Engine Failure Write Off Your MINI Convertible One
Whether you are dealing with the notorious N16 timing chain rattle or a B38 cooling system issue, replacing your engine with a rebuilt unit from EnginesMarket ensures the original weak points are addressed with upgraded components. You get a minimum 12-month unlimited-mileage warranty, nationwide delivery, and prices that are significantly lower than main dealer premiums.
Compare rebuilt N16B16A MINI Convertible One engine prices
Important 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 MINI Convertible One. Every engine supplied through EnginesMarket carries a minimum 12-month unlimited mileage warranty - always confirm exact terms with your chosen supplier."
MINI Convertible One Engine ReplacementFrequently Asked Questions
Question 1How much does a MINI Convertible One engine replacement cost-
The cost to replace a MINI Convertible One engine varies by generation and condition. Used engines typically range from £800 to £1,800, while reconditioned units cost between £1,500 and £3,000. A fully rebuilt engine with upgraded components and a 12-month warranty generally ranges from £2,000 to £4,000, excluding labour.
- Used engines are the most budget-friendly but carry higher risk.
- Reconditioned engines offer a balance of reliability and cost.
- Rebuilt engines provide the longest lifespan and best warranty coverage.
Question 2What are the signs of timing chain failure in a MINI Convertible One-
The most common early warning sign is a rattling or ticking noise from the engine bay, particularly during a cold start. Other symptoms include the check engine light illuminating, rough idling, loss of power, or metallic sounds that worsen with engine speed.
- Do not ignore a cold-start rattle; it indicates tensioner wear.
- Continuing to drive can cause the chain to jump, leading to catastrophic valve damage.
- Immediate inspection by a MINI specialist is strongly advised.
Question 3Is it worth replacing the engine in a 2009-2015 MINI Convertible One-
It depends on the vehicle's overall condition and current market value, which typically ranges from £1,500 to £4,500 for this era. If the rest of the car is in excellent condition with low mileage, a reconditioned engine can extend its life reliably.
- Evaluate the car's bodywork, suspension, and service history first.
- A used engine is often the most financially viable option for lower-value examples.
- Always get multiple quotes to ensure you are getting a fair market price.
Question 4How long does a MINI Convertible One engine replacement take-
A professional supply and fit of a MINI Convertible One engine typically takes 1 to 3 working days, depending on the specialist's workload and whether any ancillary components also need replacement.
- The engine removal and installation process itself usually takes 6-10 hours.
- Additional time is required for ECU coding, fluid flushing, and road testing.
- EnginesMarket specialists provide clear timelines before you commit to a quote.
Question 5What is the difference between the N16 and B38 engines in the MINI Convertible One-
The N16 (2009-2015) is a 1.6L naturally aspirated 4-cylinder engine, while the B38 (2016-present) is a 1.5L turbocharged 3-cylinder engine. The B38 offers improved fuel efficiency, lower emissions, and more low-end torque, though it introduced new complexities like direct injection carbon buildup.
- The N16 is simpler but prone to water pump and timing chain wear.
- The B38 is more efficient but requires strict adherence to oil change intervals.
- Both engines benefit from upgraded rebuilt components addressing known weaknesses.
Compare MINI Convertible OneEngine PricesToday
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