Engine Finders

BMW i Series Specialists

Expert Solutions for Every I – i3 Fully Electric to i8 Hybrid

Need a reliable replacement engine for your BMW i Series?
Engine Finders is the UK’s #1 marketplace for high-quality BMW engines.

Find Your Perfect BMW i Series Engine Today!
BMW Engine Specialist - Save Up to 60% on Reconditioned Engines

BMW I Series Replacement Engine Options - UK Supply

All engines bench-tested, VAT-inclusive, with 12-month warranty. MoT-compliant. Nationwide delivery. Direct OEM fitment for E8x, Fxx, Gxx chassis.

BMW i Series Rebuilt Engines

High-performance rebuilds with OEM parts.

BMW i Series Remanufactured Engines

Fully stripped and rebuilt to factory specs.

BMW i Series Reconditioned Engines

Thoroughly inspected and restored to working condition.

BMW i Series Replacement Engines

Direct swap engines for minimal downtime.

BMW i Series Refurbished Engines

Cleaned, tested, and performance-tuned units.

BMW i Series Used Engines

Affordable options with verified mileage and history.

BMW I Series Engine Finder: All Trims (E8x, Fxx, Gxx) | 2004-Present

Select your exact I Series trim (E8x, Fxx, Gxx)→see confirmed engine codes chassis-specific variants, rebuild costs & UK stock with 12 months warranty

BMW I Series Compatible Engine Codes & Average Prices on Rebuilt Units (UK Supply)

From £2400 • W20K06A/B38/IB1P25B engines • 12m warranty • VAT-incl. • MoT-compliant

BMW i Series replacement engine - Engine Finders

Why Choose Engine Finders for Your BMW i Series Engine?

Engine Finders connects UK drivers with vetted specialists for reliable, reconditioned BMW i Series replacement engines. From early models like the i3 and i8 to modern electric vehicles like the i4, i5, and iX, every engine is rigorously tested and warranty-backed for perfect fit.

  • ✔ Trusted UK Suppliers

    We work exclusively with vetted UK suppliers who specialize in BMW engines - no middlemen, no guesswork.

  • ✔ Save Up to 60% vs Dealership

    Why overpay? Compare quotes from multiple sellers & save up to 60% on BMW i Series replacement engines, get top-tier quality for less.

  • ✔ Tested & Certified Engines

    Every BMW i Series engine is thoroughly tested for durability and performance, backed by a 6–24 month warranty.

  • ✔ Fast Quotes & Faster Delivery

    Quick quotes, nationwide delivery, and optional vehicle recovery, get your BMW i Series back on the road in no time.

  • ✔ Expert BMW i Series Support

    Need help? Our friendly BMW specialists guide you through engine compatibility, specs, and installation process.

  • ✔ Engines for All BMW i Series Models

    From the i3 and i8 to the latest iX and i7, across multiple generations, we cover every BMW i Series model.

  • ✔ Performance Matched with Experience

    Our remanufactured and reconditioned engines often meet or exceed OEM specs - ready for serious off-road and on-road action.

  • ✔ We Work for You - Not the Suppliers

    We’re 100% on your side, helping you choose the best engine deal instead of just pushing supplier specials.

Rated 4.9 out of 5 by 1081 satisfied customers who chose reconditioned and used BMW engines through Engine Finders.

Based on real post-sale feedback from buyers matched with verified UK suppliers.

4.9/5
"Thanks to Engine Finders, I saved over £1,200 on my engine!" - Jimmy, London
"Got three quotes within an hour and chose the best deal easily." - Pete, Leeds
"Engine Finders made the whole process quick and painless." - Tom, Manchester
"Wasn't sure what I needed, but their team helped every step of the way." - Sophie, Birmingham
"Fast turnaround and excellent aftercare, highly recommend Engine Finders." - Ahmed, Bradford
"Best car-related experience I've had in years. Awesome guys, honestly!." - Liam, London

BMW i Series Engines for Sale | Engine Finders

Engine Finders is the UK's largest BMW engines marketplace for top-quality BMW replacement engines, including BMW i Series engines - whether you're looking for a reconditioned, remanufactured, or low-mileage used engine. Simply enter your registration or browse our engine list to find a compatible match at highly competitive prices.

BMW i Series Replacement Engines

The BMW i Series is BMW’s lineup of electrified vehicles, combining cutting-edge technology with sustainability and performance. First introduced in 2013 (i3), the i Series has evolved through multiple generations, offering fully electric and plug-in hybrid models. The i8 (2014–2020) was BMW’s first plug-in hybrid sports car, while the iX (2021–present) represents the future of electric SUVs. The latest i4, i5, and i7 models provide luxury and efficiency with advanced battery technology. With trims like the iX M60 and the high-performance i7 M70, the i Series remains at the forefront of BMW’s electric mobility.

Whether you need a replacement due to timing chain issues, overheating, or general wear and tear, Engine Finders makes it easy to locate the right i Series engine, fast.

BMW i Series Models & Engine Codes

BMW’s i Series engines range from compact electric motors to high-performance hybrid powertrains. Whether you're driving an early i3 or a newer iX M60, we can help you find the exact engine code match.

Here are some of the popular BMW i Series engine codes we regularly stock:

  • BMW i3 (2013–2022)
    Engine Codes: W20K06U0 (Electric), B38K15T0 (Range Extender)
    Compact city EV with innovative carbon-fiber construction.
  • BMW i8 (2014–2020)
    Engine Code: B38K15T0 + Electric Motor
    Plug-in hybrid sports car with futuristic design and 369 hp.
  • BMW i4 (2021–Present)
    Engine Codes: EB2D (eDrive40), EB2X (M50)
    All-electric Gran Coupé with up to 536 hp in the M50 variant.
  • BMW i5 (2023–Present)
    Engine Codes: EB2D (eDrive40), EB2X (M60)
    Luxury electric sedan with advanced battery technology.
  • BMW i7 (2022–Present)
    Engine Codes: EB2D (xDrive60), EB2X (M70)
    Flagship electric luxury sedan with up to 650 hp.
  • BMW iX (2021–Present)
    Engine Codes: EB2D (xDrive40), EB2X (M60)
    High-tech electric SUV with long-range capability.
  • BMW i Series i3, i8, i4, i5, i7, iX (Body Styles)
    Available in hatchback, coupe, sedan, and SUV variants across trims and generations.

We can also help source rare engine variants, including special editions like the iX M60 and models with performance-enhancing electric upgrades. If you're unsure about compatibility, just send us your reg or VIN – we’ll do the hard work for you.

Buy Used and Second-Hand BMW i Series Engines

Engine Finders connects you to a vast network of trusted UK suppliers with a wide range of BMW i Series engines in stock. Whether you need:

  • Used Engines
  • Reconditioned Engines
  • Rebuilt Engines
  • Remanufactured Engines

Our vetted sellers ensure every BMW i Series engine meets our quality standards, whether you’re after a budget-friendly used unit or a factory-spec remanufactured version.

BMW i Series Engines in Stock

From everyday petrol to diesel-efficient or performance-driven models, we offer a wide-range of BMW i Series used and reconditioned engines.

Reconditioned engines often include brand-new internal parts, such as:

  • New Pistons, Rings, Bearings, Gaskets, Chains, and Seals Precision-balanced components and multi-point quality checks
  • Every engine is tested for compression, leaks, and performance before dispatch.

Warranty for Replacement BMW i Series Engines

All BMW i Series replacement engines listed through Engine Finders come backed by supplier warranties for added peace of mind. Warranty periods include:

  • Reconditioned Engines: 6 months to 2 years
  • Used Engines: 30 days to 6 months
  • Remanufactured Engines: 1 to 2 years
  • International shipping available (from selected suppliers)

Please Note: "Warranty terms vary by engine type and supplier. We recommend inquiring directly with your chosen supplier for specific terms and conditions, as Engine Finders is a price comparison website."

BMW i Series Engine
Frequently Asked Questions – BMW i Series Engines
What's the average cost to replace a BMW i3 battery in the UK?

Expect £12,500-£18,000 for 94Ah packs (2018+) through certified suppliers - 60% cheaper than dealership quotes. Prices vary by remaining capacity (SOH reports provided).

How long do BMW i4 electric motors typically last?

The eDrive40's 335hp motor is rated for:
300,000+ miles under normal use
Only 3 moving parts (vs 200+ in ICE)
10-year corrosion warranty from most suppliers

Why does my i3 Rex range extender engine fail so often?

The 647cc 2-cylinder suffers from:
Fuel system corrosion (from infrequent use)
Overheating (no dedicated cooling circuit)
£3,200-£4,500 for certified rebuilt units

Can you upgrade an older i3's 60Ah battery to 120Ah?

Specialist suppliers offer:
Full HV system recoding (£1,200-£1,800)
Modified cooling lines
Structural reinforcement for heavier packs
Total cost: £14,900-£19,500

What causes the iX3's sudden power reduction?

Usually triggered by:
PTC heater failures (drawing 40kW+)
Cell voltage deviations >50mV
Gearbox oil overheating

How does cold weather affect i4 eDrive35 range?

Below 5°C expect:
28-32% reduced range (220mi vs 310mi)
Preconditioning adds 8-12% back
Heat pump models lose 5% less

Are BMW i8 hybrid batteries still repairable in 2024?

Only 3 UK specialists can:
Replace individual LiPo pouches (£6,800+)
Recalibrate cell monitoring
Extend lifespan to 15 years

What's the real cost per mile for an iX xDrive50?

Based on 12,000mi/year:
Electricity: £580 (at 30p/kWh)
Tires: £1,200 (23" wear faster)
Brakes: £180 (regen reduces use)

Why do i7's 101.7kWh batteries charge slower than competitors?

BMW's conservative thermal management:
Max 195kW vs 250kW+ rivals
20-80% in 34 mins (vs 28 mins EQS)
5% slower in cold weather

Can the iX1's 64.7kWh pack be upgraded?

Not currently - the Gen5 BEV platform has:
Fixed cell-to-body mounting
No aftermarket BMS solutions
Structural adhesive challenges

What causes i4 M50's accelerated tire wear?

The 544hp AWD system combined with:
2,300kg weight
Camber-heavy M suspension
Regen braking forces
Yields 12-15k mile rear tire lifespan

How does the i5's heat pump improve efficiency?

Recovers 3.5kW waste heat from:
Battery cooling circuits
Drive unit oil
Onboard charger
Boosts winter range by 18-22%

Are iX Flow color-changing body panels repairable?

BMW's electrophoretic tech requires:
Specialist HV training
£6,200+ per panel
3-6 month lead times

What's the lifespan of i7's crystal headlight elements?

The laser-etched glass:
Rated for 15 years
£3,800 per unit replacement
Prone to micro-fractures in cold

Why does my iX show "Drivetrain Malfunction" during fast charging?

Usually from:
Cell temperature delta >8°C
CCS connector wear
DC converter limitations
Most suppliers reset for £120-£250