Mini Convertible Cooper SD Engine ReplacementCompare Prices & Get Quotes
Get quotes today from trusted UK Mini Convertible Cooper SD engine specialists. Compare prices on reconditioned, rebuilt and used engines to find the most cost-effective, warranty-backed solution for your vehicle.
Supply & Fit Available
12-Month Warranty
Nationwide Delivery
100+ Suppliers
From £3,800 to £5,800
Used from £1,500 · Reconditioned from £2,800 · Common codes: N47D20C, B47D20A
From £1,500
Tested, bare/short engine
From £2,800
Rod bearings addressed, tested
From quote
Upgraded bearings, full teardown, revised valvetrain
Secure enquiry - no spam, no pressure. Genuine quotes only from vetted UK Mini Convertible Cooper SD specialists.
3 Simple Steps3 Simple Stepsto Finding the Best Mini Convertible Cooper SD Replacement Engineto Finding the Best Mini Convertible Cooper SD Replacement Engine
Most replacements completed within 3-5 days.
Variant HistoryMini Convertible Cooper SD - Engine History & Specs at a Glance
Launched as the performance diesel variant of the modern Mini Convertible range, the Mini Convertible Cooper SD has evolved from the robust but complex N47 powerplant to BMW’s highly efficient, front-chain B47 architecture, delivering premium open-top driving dynamics with exceptional torque.
Variant HistoryMini Convertible Cooper SD - Engine History & Specs at a Glance
Launched as the performance diesel variant of the modern Mini Convertible range, the Mini Convertible Cooper SD has evolved from the robust but complex N47 powerplant to BMW’s highly efficient, front-chain B47 architecture, delivering premium open-top driving dynamics with exceptional torque.
Mini Convertible Cooper SD
Fuel TypeDiesel
Engine Size Range2.0L
Power Output Range143hp - 190hpEngine History Timeline
N47D20C 2.0L Turbodiesel, 143hp (R57 generation launch, BMW/PSA joint venture engine)
B47D20A 2.0L Turbodiesel, 190hp (F57 generation, revised architecture with front-mounted timing chain and improved thermal management)
Key Specs Snapshot
Fuel TypeDieselEngine Size Range2.0LPower Output Range143hp - 190hpYears Produced2009 - presentEvery engine fitted to the Mini Convertible Cooper SD is covered below, with UK rebuilt pricing and known failure points to help you make an informed replacement decision.
Mini Convertible Cooper SD Engine Codes - Specifications & Replacement CostMini Convertible Cooper SD Engine Codes - Specifications & Replacement Cost
2.0L Turbodiesel (2009-2015)
Power Output143hpYears Fitted2009-2015
Compatible Trim Levels
- Mini Convertible Cooper SD (R57)
Find your exact engine code, specs and UK replacement cost guide.
Used
Tested, ready-to-fit engine
£1,800-£3,200
Reconditioned
Addressed known issues, tested
£3,200-£5,500
Rebuilt
Full teardown, upgraded internals
£4,500-£6,500
Common Failure
Timing chain stretch and tensioner failure due to the rear-mounted chain design, often presenting as a distinct rattling noise on cold starts `[THIRD-PARTY]`.
The reliability of the Mini Convertible Cooper SD depends heavily on its generation. The dominant replacement demand comes from the R57 N47D20C due to timing chain wear, while the F57 B47D20A sees intervention primarily for EGR cooler failures. Rebuilt engines sourced through EnginesMarket include upgraded components addressing these original failure points, backed by a minimum 12-month unlimited-mileage warranty.
Why the Mini Convertible Cooper SD N47D20C Wears Prematurely
Affected Vehicles
Mini Convertible Cooper SD (N47D20C, 2009-2015)
Typical Failure Mileage
60,000-120,000 miles
Root Cause
The N47 architecture utilises a rear-mounted timing chain design. This makes the chain and plastic guides difficult to access and highly susceptible to wear if oil service intervals are extended, leading to chain elongation and catastrophic engine failure if the chain skips a tooth.
Why It Happens
The N47 architecture utilises a rear-mounted timing chain design. This makes the chain and plastic guides difficult to access and highly susceptible to wear if oil service intervals are extended, leading to chain elongation and catastrophic engine failure if the chain skips a tooth.
Dealer (parts + labour)
£1,200-£1,800
Specialist (parts + labour)
£650-£1,200
What it involves
Replace chain, tensioner, and guides before failure occurs.
Suitability
Good if caught early; does not fix existing internal wear.
1 - 2 daysDealer (parts + labour)
£6,500-£9,000
Specialist (parts + labour)
£4,500-£6,500
What it involves
Supply & fit of a rebuilt N47D20C with upgraded timing components and 12-month warranty.
Suitability
The right call if the chain has already jumped or caused internal 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 |
|---|---|---|---|---|---|
 Preventative Chain Kit Replacement Minor | £1,200-£1,800 | £650-£1,200 | Replace chain, tensioner, and guides before failure occurs. | Good if caught early; does not fix existing internal wear. | 1 - 2 days |
 Full Replacement - rebuilt/reconditioned engine Best Value | £6,500-£9,000 | £4,500-£6,500 | Supply & fit of a rebuilt N47D20C with upgraded timing components and 12-month warranty. | The right call if the chain has already jumped or caused internal damage. | 1 - 2 days |
Our Recommendation
Our Recommendation
For R57 models showing early timing chain rattle, a preventative chain kit replacement by a specialist is the most cost-effective route, though you must weigh this against the car's overall depreciation. For F57 models, address EGR cooler warnings immediately under the manufacturer recall scheme to prevent secondary engine damage. If catastrophic failure has occurred, a rebuilt engine is the only reliable long-term solution.
Don't Let Engine Failure Write Off Your Mini Convertible Cooper SD
Navigating engine failure is stressful, but you do not have to accept main dealer premiums. By comparing quotes through EnginesMarket, you gain access to vetted UK specialists who supply rebuilt Mini Convertible Cooper SD engines featuring upgraded components that address the original design weaknesses. With a minimum 12-month unlimited-mileage warranty and nationwide supply-and-fit options, you can restore your vehicle's reliability confidently and cost-effectively.
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 Mini Convertible Cooper SD. Every engine supplied through EnginesMarket carries a minimum 12-month unlimited mileage warranty - always confirm exact terms with your chosen supplier."
Mini Convertible Cooper SD Engine ReplacementFrequently Asked Questions
Question 1How much does a Mini Convertible Cooper SD engine replacement cost-
The cost depends on the engine condition and generation. For the common N47D20C and B47D20A engines, a used unit typically costs £1,500-£3,200 (supply only), while a fully reconditioned or rebuilt engine with a warranty ranges from £3,800 to £6,500 (supply only).
- Used engines are cheapest but carry higher risk.
- Rebuilt engines include upgraded components and a 12-month warranty.
- Supply and fit labour adds approximately £650-£910 depending on the specialist.
Question 2What are the early signs of timing chain failure in a Mini Convertible Cooper SD-
The most common early warning sign on the N47D20C engine is a distinct rattling or ticking noise from the rear of the engine bay during a cold start, which may fade as the engine warms up.
- You may also notice the engine management light illuminating.
- A loss of power or rough idling can indicate the chain has stretched significantly.
- Warning: Ignoring a rattling timing chain can lead to catastrophic internal engine damage.
Question 3Is it worth replacing the engine in an older R57 Mini Convertible Cooper SD-
It depends on the vehicle's current market value and overall condition. R57 models often value between £4,000 and £10,000.
- If the car is worth under £6,000, a used engine or major repair may be the only financially viable option, as a full rebuild can approach the vehicle's value.
- If the car is in exceptional cosmetic condition or holds sentimental value, a rebuilt engine can extend its life reliably.
- For newer F57 models (£12,000+), a rebuilt engine is a sound financial investment.
Question 4How long does a Mini Convertible Cooper SD engine replacement take-
A professional supply and fit service for a Mini Convertible Cooper SD typically takes 1 to 3 working days.
- Sourcing a quality reconditioned or rebuilt engine may take a few days if not immediately available.
- The physical removal and installation process is straightforward for experienced Mini specialists.
- Additional time may be required for ECU coding, DPF regeneration, and system resets.
Question 5What is the difference between the Mini Convertible Cooper D and Cooper SD engines-
While both are diesel variants, the Mini Convertible Cooper SD uses a higher-output 2.0L engine (143hp-190hp) compared to the Cooper D (90hp-116hp).
- The Cooper SD features a larger turbocharger, upgraded internals, and different ECU mapping to deliver significantly more power and torque.
- Consequently, Cooper SD engine replacements are more complex and carry a higher price tag than standard Cooper D units.
Why Choose UsCompare Mini Convertible Cooper SDEngine PricesToday
500+ Mini Convertible Cooper SD engines supplied through our network
12-Month Warranty on every rebuilt Mini Convertible Cooper SD engine
Nationwide UK delivery
supply & fit available
Don't overpay at the main dealer. Comparing quotes through EnginesMarket is 100% free and carries no obligation. We connect you directly with vetted UK specialists who understand the unique requirements of the Mini Convertible Cooper SD, ensuring you get the right engine code, transparent pricing, and a warranty you can trust.
Enter your registration
and get matched with verified Mini Convertible Cooper SD specialists.