Engine Finders

BMW X3 Specialists

Expert Solutions for Every X3 – X3 xDrive20d to X3 M40i

Need a reliable replacement engine for your BMW X3?
Engine Finders is the UK’s #1 marketplace for high-quality BMW engines.

Find Your Perfect BMW X3 Engine Today!
BMW Engine Specialist - Save Up to 60% on Reconditioned Engines

BMW X3 Engines In Stock NOW: Live Prices, Rebuild Cost & Supply & Fit Service (UK-Wide)

Check REAL-TIME stock for X3 M40i/xDrive (G01 chassis). View exact rebuild costs for B58/B47 engines, professional engine works & certified garage near you – 12-month warranty, MoT-ready, same-day dispatch.

BMW X3 Replacement Engine Options - UK Supply

All engines bench-tested, VAT-inclusive, with 12-month warranty. MoT-compliant. Nationwide delivery. Direct OEM fitment for E83, F25, G01 chassis.

BMW X3 Rebuilt Engines

High-performance rebuilds with OEM parts.

BMW X3 Remanufactured Engines

Fully stripped and rebuilt to factory specs.

BMW X3 Reconditioned Engines

Thoroughly inspected and restored to working condition.

BMW X3 Replacement Engines

Direct swap engines for minimal downtime.

BMW X3 Refurbished Engines

Cleaned, tested, and performance-tuned units.

BMW X3 Used Engines

Affordable options with verified mileage and history.

BMW X3 Engine Finder: All Trims (E83, F25, G01) | 2004-Present

Select your exact X3 trim (E83, F25, G01)→see confirmed engine codes chassis-specific variants, rebuild costs & UK stock with 12 months warranty

BMW X3 Compatible Engines - Rebuilt Units (UK Supply)

From £900 • B47/B48/B58 engines • 12m warranty • VAT-incl. • MoT-compliant

BMW X3 replacement engine - Engine Finders

Why Choose Engine Finders for Your BMW X3 Engine?

Engine Finders connects UK drivers with vetted specialists for reliable, reconditioned BMW X3 replacement engines. From diesels like the xDrive20d/xDrive30d to petrol xDrive20i/xDrive30i and even the M40i, 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 X3 replacement engines, get top-tier quality for less.

  • ✔ Tested & Certified Engines

    Every BMW X3 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 X3 back on the road in no time.

  • ✔ Expert BMW X3 Support

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

  • ✔ Engines for All BMW X3 Models

    From xDrive20d, xDrive30i petrols to the M40i, across E83, F25, G01 & G45 generations, we cover every BMW X3 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 X3 Engines for Sale | Engine Finders

Engine Finders is the UK's largest BMW engines marketplace for top-quality BMW replacement engines, including BMW X3 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 X3 Replacement Engines

The BMW X3 is a premium compact SUV that blends BMW’s signature driving dynamics with practicality and versatility. First introduced in 2003 (E83), the X3 was BMW’s entry into the luxury crossover segment, offering a more urban-friendly alternative to larger SUVs. Over the years, it evolved through the F25 generation (2010–2017), G01 (2018–2024), and into the latest G45 lineup (2025–present), featuring improved interior space, advanced technology, and electrified powertrains. With trims like the M40i and fuel-efficient diesels like the xDrive30d, the X3 delivers a balance of performance and practicality, making it a popular choice among UK drivers.

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 X3 engine, fast.

BMW X3 Models & Engine Codes

BMW’s X3 engines range from efficient 4-cylinder petrols to performance-tuned turbocharged 6-cylinders. Whether you're driving an early E83 or a newer G45 M Sport, we can help you find the exact engine code match.

Here are some of the popular BMW X3 engine codes we regularly stock:

  • BMW xDrive20i, xDrive30i, M40i
    Petrol Engine Codes: B48A20, B58B30
    Known for fuel economy and smooth performance in city driving.
  • BMW xDrive20d, xDrive30d, xDrive40d
    Diesel Engine Codes: B47D20, B57D30
    Great torque and long-range economy; early N47 models may have timing chain concerns.
  • BMW X3 Plug-in Hybrid (xDrive30e)
    Hybrid Engine Codes: B48A20 + Electric Motor
    Combines petrol efficiency with electric power for lower emissions.
  • BMW X3 E83, F25, G01, G45 (Body Styles)
    Available in petrol, diesel, plug-in hybrid, and mild-hybrid variants across trims and generations.

We can also help source rare engine variants, including the xDrive28i, xDrive25e hybrid, and models with xDrive all-wheel-drive systems. 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 X3 Engines

Engine Finders connects you to a vast network of trusted UK suppliers with a wide range of BMW X3 engines in stock. Whether you need:

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

Our vetted sellers ensure every BMW X3 engine meets our quality standards, whether you’re after a budget-friendly used unit or a factory-spec remanufactured version.

BMW X3 Engines in Stock

From everyday petrol to diesel-efficient or performance-driven models, we offer a wide-range of BMW X3 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 X3 Engines

All BMW X3 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 X3 Engine
Other BMW Parts You Can Find Here
Frequently Asked Questions - BMW X3 Engines
What's the average cost to replace a B47 engine in a 2017 X3 xDrive20d?

Certified suppliers offer £4,200-£6,800 for B47D20 units including:
Reinforced timing chain kit (critical upgrade)
24-month unlimited mileage warranty
Free UK delivery & old engine collection
(Save 40-55% vs main dealer prices)

How do I know if my X3's N20 engine needs replacing?

Critical warning signs:
⚠️ Loud rattling on cold starts (timing chain failure)
⚠️ Blue exhaust smoke (turbo oil seals)
⚠️ Coolant/oil mixing (cracked head)
Most suppliers provide free video diagnostics

Where can I find a low-mileage B48 engine for my 2019 X3 xDrive30i?

Our network supplies:
Under 50k mile B48B20 units (£5,900+)
Complete with ECU and wiring harness
Matching xDrive transfer case available

What's the labor time for an X3 xDrive engine replacement?

Certified workshops require:
2-3 days for standard replacement
+1 day for xDrive system recalibration
Includes mandatory software coding

Used vs Reconditioned X3 Engines - Which Offers Better Value?

Type Price Range Warranty Ideal For
Used £3,800-£5,200 6-12mo Short-term ownership
Reconditioned £5,500-£7,900 2yr Long-term keepers
Remanufactured £8,200+ 3yr High-performance use

Why does my X3 35d's N57 engine go into limp mode?

Top supplier-fixed issues:
EGR cooler leaks (common on 2014-2017)
DPF pressure sensor faults
Swirl flap actuator failures

Can I upgrade my 2015 X3 to the newer B48 engine?

Specialist conversions include:
B48B20 swap packages (£6,800+)
Full xDrive compatibility checks
EU6 emissions compliance documentation

What documents come with a replacement X3 engine?

Reputable suppliers provide:
MOT mileage verification
ECU compatibility certificate
V5C support for DVLA notification

How to verify a used X3 engine's condition before buying?

Always demand:
Compression test results (<10% variance)
Oil pressure readings (3.0-4.5 bar)
Turbo shaft play measurements

What causes timing chain failure in X3 sDrive18i models?

The B38 engine's weak points:
Plastic tensioner failures
Inadequate oil spray bars
£2,200-£3,100 for upgraded metal kits

Is the B57 diesel more reliable than the N57 in X3s?

The B57 improves with:
Dual-mass flywheel redesign
Revised timing chain oilers
Stronger crankshaft bearings

Do you offer finance on X3 engine replacements?

Select suppliers provide:
0% APR 6-12 month plans
Lease-to-own options
Business/customer split payments

What warranty comes with X3 replacement engines?

Standard packages include:
24 months on reconditioned units
36 months on remanufactured
Nationwide labor reimbursement

Why does my X3 shake when accelerating?

Common causes we fix:
Engine mount failures (£320-£480)
Driveshaft center bearing wear
Fuel injector calibration needed

How quickly can I get an engine for my X3 M40i?

Immediate UK availability:
2 B58B30M1 engines (<40k miles)
Next-business-day delivery
Includes M Performance software