Engines Market

BMW X2 18i SPECIALISTS

BMW X2 18i Engine Replacement Compare Prices & Get Quotes

Get quotes today from trusted UK BMW X2 18i engine specialists. Compare prices on reconditioned, rebuilt and used engines for your sDrive18i - covering both the B38A15A and B38A15C 1.5-litre three-cylinder petrol engines across the full F39 production run.

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BMW X2 18i Engine
from£1,600 to £3,100
  • Usedfrom £800
  • Reconditionedfrom £1,600
  • Common codesB38A15A, B38A15C
BMW x2 18i Used Engine — B38A15ABMW x2Used Engine — B38A15ABMW x2 18i Reconditioned Engine — B38A15ABMW x2Reconditioned Engine — B38A15ABMW x2 18i Rebuilt Engine — B38A15ABMW x2Rebuilt Engine — B38A15A

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How it works

3 Simple Steps to Finding the Right Replacement Engine

Clear information first, then the right engine and specialist for your exact vehicle.

Variant History

BMW X2 18i Engine History & Specs at a Glance

The BMW X2 18i arrived with the F39 generation in 2018 as the entry-level petrol option, powered by the B38A15A 1.5-litre three-cylinder turbo engine. A revised B38A15C unit was introduced with the 2022 LCI update, bringing improved refinement and thermal management.

BMW X2 18i
  1. 2018

    B38A15A, 1.5-litre three-cylinder turbo petrol, 140hp, launched with the F39 X2 sDrive18i

  2. 2019

    B38A15A continues as the sole 18i engine, offered across SE, Sport and M Sport trims

  3. 2020

    M Mesh Edition joins the range; 18i remains available with the B38A15A

  4. 2022

    B38A15C, updated 1.5-litre three-cylinder with refined balance shaft and improved thermal management, introduced with the F39 LCI facelift

  5. 2023

    F39 production ends; the 18i badge continues on the next-generation U10 X2

Every engine fitted to the BMW X2 18i is covered below, with UK rebuilt pricing and known failure points.

Engine Codes & Pricing

BMW X2 18i Engine Codes Specifications & Replacement Cost

Find your exact engine code, specs and UK replacement cost guide.

B38A15A — 1.5L Petrol (2018-2022) engine

B38A15A — 1.5L Petrol (2018-2022)

Power Output
140hp (103kW)
Torque
220Nm (162 lb-ft)
Years Fitted
2018-2022 (F39 X2 sDrive18i)

Can’t find your exact engine code?-> Get quotes for B38A15A BMW X2 18i engine replacement

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Common Problems

BMW X2 18i Engine Problems Repair Cost vs Replacement

The BMW X2 18i's B38 three-cylinder petrol engine is generally dependable when maintained properly, but its compact architecture makes cooling and timing components vulnerable to thermal stress. Rebuilt BMW X2 18i engines through EnginesMarket include upgraded components addressing the original failure points, plus a minimum 12-month unlimited-mileage warranty.

Common failure points and repair options

B38 Water Pump Housing Failure

Affected
BMW X2 18i (B38A15A / B38A15C, 2018-2023)
Typical failure mileage
40,000-80,000 miles
Root cause
The factory plastic water pump housing becomes brittle under repeated thermal cycling, leading to micro-fractures and coolant leaks. The B38's compact engine bay layout means the water pump is subjected to significant heat stress, accelerating housing degradation.

Repair options

Repair tierDealer priceSpecialist price
Water pump housing replacement£500-£900£300-£600
Coolant system overhaul£800-£1,200£550-£850
Full Replacement - rebuilt/reconditioned engine£4,000-£5,500£2,500-£4,000
Our recommendation
If you notice coolant puddles under the car, low coolant warnings, or temperature gauge fluctuations, have the water pump housing inspected immediately. Catching a leak early means a simple housing replacement - not a full engine rebuild. On higher-mileage B38 engines, consider replacing the water pump housing preventatively at 60,000 miles.
-> Compare rebuilt B38A15A BMW X2 18i engine prices

B38 Timing Chain Wear

Affected
BMW X2 18i (B38A15A, early production 2018-2020)
Typical failure mileage
60,000-100,000 miles
Root cause
The B38 timing chain tensioner can lose hydraulic pressure, allowing chain slack. Extended BMW service intervals and short-journey driving accelerate plastic guide wear. While less common than on the N47 diesel, timing chain issues have been reported on the B38.

Repair options

Repair tierDealer priceSpecialist price
Timing chain replacement (preventative)£1,200-£1,800£750-£1,200
Full Replacement - rebuilt/reconditioned engine£4,000-£5,500£2,500-£4,000
Our recommendation
Listen carefully on cold starts - a metallic rattle from the engine bay lasting 1-2 seconds is the classic warning sign. If caught early, a chain replacement at a specialist costs significantly less than a full rebuild. On early B38 engines (2018-2020), consider having the timing chain inspected at 60,000 miles as a precaution.
-> Compare B38 timing chain replacement vs rebuilt BMW X2 18i engine prices

B38 Turbocharger Wear

Affected
BMW X2 18i (B38A15A / B38A15C, 2018-2023)
Typical failure mileage
60,000+ miles (37,000+ miles)
Root cause
The turbocharger on the B38 can suffer from bearing wear and wastegate mechanism fatigue, particularly on vehicles driven hard or with extended oil change intervals. Symptoms include loss of power, smoke from the exhaust, and increased oil consumption.

Repair options

Repair tierDealer priceSpecialist price
Turbocharger replacement£1,500-£2,500£900-£1,800
Full Replacement - rebuilt/reconditioned engine£4,000-£5,500£2,500-£4,000
Our recommendation
If you notice a siren-like noise, loss of power under acceleration, or blue smoke from the exhaust, have the turbo inspected immediately. A £900-£1,800 turbo replacement at a specialist is far cheaper than a full engine rebuild. Always use high-quality oil and stick to BMW's recommended service intervals to extend turbo life.
-> Compare rebuilt B38 BMW X2 18i engine prices

Don't Let Engine Failure Write Off Your BMW X2 18i

The B38 three-cylinder engine is generally reliable, but water pump housing failure, timing chain wear, and turbocharger issues can become costly if ignored. Rebuilt engines through EnginesMarket come with upgraded components addressing the original failure points, a minimum 12-month unlimited-mileage warranty, and nationwide delivery or supply-and-fit options. Compare prices from vetted UK specialists today - and keep your X2 18i on the road for years to come.

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FAQ

BMW X2 18i Engine ReplacementFrequently Asked Questions

Everything BMW X2 18i owners usually ask before choosing a rebuilt, reconditioned or used replacement engine.

Why Choose Us

Compare BMW X2 18i Engine Prices Today

Comparing quotes for your BMW X2 18i engine replacement is free, quick and carries no obligation. Enter your registration above, tell us your engine code (B38A15A or B38A15C), and receive tailored prices from vetted UK specialists. Whether you need a used, reconditioned or rebuilt unit - with or without fitting - we'll connect you with the right supplier for your exact X2 18i.

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