Engines Market

BMW X1 25e SPECIALISTS

BMW X1 25e Engine Replacement Compare Prices & Get Quotes

Get quotes today from trusted UK BMW X1 25e PHEV engine specialists. Compare prices on reconditioned, rebuilt and used BMW X1 25e engines - supply & fit available nationwide for xDrive25e hybrid variants.

Supply & Fit Available
12-Month Warranty
Nationwide Delivery
100+ Suppliers
BMW X1 25e Engine
from£3,000 to £6,000
  • Usedfrom £2,200
  • Reconditionedfrom £3,200
  • Common codesB38B15 PHEV, B38A15M2, B38B15

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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 X1 25e Engine History & Specs at a Glance

The BMW X1 25e joined the range during the F48 lifecycle in 2020 as the first plug-in hybrid X1, combining the B38 three-cylinder petrol engine with an electric motor for 220hp combined. The xDrive25e continued into the U11 generation (2022-present) with a larger battery and improved electric-only range, cementing BMW's electrified compact SUV offering.

BMW X1 25e
  1. 2020

    B38B15 PHEV, 1.5L three-cylinder turbo petrol with electric motor, 220hp combined, 30-35 miles electric range (F48 LCI)

  2. 2022

    U11 generation launches with revised B38B15 PHEV, 220hp combined, 14.2kWh battery, 40+ miles electric range

  3. 2023

    xDrive25e M Sport and xDrive25e xLine trims continue with improved hybrid system calibration

  4. 2024

    Current U11 generation with refined PHEV software and improved thermal management

Every engine fitted to the BMW X1 25e is covered below, with UK rebuilt pricing and known failure points.

Engine Codes & Pricing

BMW X1 25e Engine Codes Specifications & Replacement Cost

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

B38B15 PHEV — 1.5L Plug-in Hybrid Petrol (2020-2025) engine

B38B15 PHEV — 1.5L Plug-in Hybrid Petrol (2020-2025)

Power Output
220hp (combined, petrol + electric motor)
Years Fitted
2020-present (F48 LCI, U11)
Electric Motor Output
95hp (F48), 109hp (U11)
Battery Capacity
12.0kWh (F48), 14.2kWh (U11)

Can’t find your exact engine code?-> Get quotes for B38B15 PHEV BMW X1 25e engine replacement

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Common Problems

BMW X1 25e Engine Problems Repair Cost vs Replacement

The BMW X1 25e is a plug-in hybrid - the B38 three-cylinder petrol engine works alongside an electric motor and high-voltage battery. PHEV engine failure is rare, but when it occurs, the complexity of the hybrid system demands specialist diagnosis. The combustion engine itself shares many characteristics with the standard B38, but replacement requires hybrid-safe workshop procedures and specialist calibration. Every rebuilt 25e engine supplied through Engines Market includes upgraded components addressing the original failure point - plus a minimum 12-month unlimited-mileage warranty. Below we break down the most common X1 25e failure areas and when replacement is the only sensible option.

Common failure points and repair options

BMW X1 25e High-Voltage Battery Degradation

Affected
BMW X1 xDrive25e (2020-present, all generations)
Typical failure mileage
60,000-100,000 miles (battery capacity degradation more than failure)
Root cause
Lithium-ion high-voltage batteries degrade over time and with charge cycles, reducing electric-only range and causing error codes. In rare cases, cell failure or thermal management faults can occur earlier.

Repair options

Repair tierDealer priceSpecialist price
Minor - Battery Cell Replacement (Individual Cells)£2,500-£4,500£1,800-£3,000
Intermediate - Complete HV Battery Replacement£6,000-£8,500£4,500-£6,500
Full Replacement - Rebuilt B38 PHEV Engine (Supply & Fit)£7,500-£10,000£5,500-£7,500
Our recommendation
Monitor electric range decreases - if you notice significantly reduced EV range, have a specialist test the high-voltage battery. Many 25e owners will be covered under BMW's 8-year/100,000-mile battery warranty (whichever comes first). Always check warranty status before paying for battery work. If the combustion engine fails, a rebuilt B38 PHEV engine is the sensible path - dealer replacement costs often exceed the value.
-> Compare BMW X1 25e PHEV battery and engine replacement costs

BMW X1 25e Electric Motor Drive Unit Wear

Affected
BMW X1 xDrive25e (2020-present, all generations)
Typical failure mileage
70,000-120,000 miles
Root cause
The electric motor drive unit (integrated with the transmission in F48, or rear-axle mounted in U11) can experience bearing wear or coolant ingress into the motor windings. This is a specialist-only repair requiring hybrid-safe workshop access.

Repair options

Repair tierDealer priceSpecialist price
Minor - Motor Bearing Replacement£1,800-£2,800£1,200-£1,800
Intermediate - Complete Electric Motor Replacement£4,500-£6,500£3,000-£4,500
Full Replacement - Rebuilt B38 PHEV Engine (Supply & Fit)£7,500-£10,000£5,500-£7,500
Our recommendation
If you hear unusual whining or grinding noises from the drivetrain under electric power, stop driving and have the vehicle recovered to a specialist. Do not continue driving - motor bearing failure can cause catastrophic damage to the drive unit and hybrid system. Specialist hybrid workshops have the diagnostic tools to identify motor issues before they escalate.
-> Get quotes for BMW X1 25e electric motor repair and replacement

BMW X1 25e Hybrid System Software Integration Faults

Affected
BMW X1 xDrive25e (2020-present, all generations)
Typical failure mileage
30,000-80,000 miles (software-related, often mileage-independent)
Root cause
The complex integration between the B38 combustion engine, electric motor, battery management system, and transmission can suffer from software faults. These can manifest as drivetrain malfunctions, check engine lights, or failure to switch between petrol/electric modes properly.

Repair options

Repair tierDealer priceSpecialist price
Minor - Software Update and Module Recalibration£200-£600£150-£350
Intermediate - Control Module Replacement£800-£1,800£500-£1,200
Full Replacement - Rebuilt B38 PHEV Engine (Supply & Fit)£7,500-£10,000£5,500-£7,500
Our recommendation
Regular dealer servicing is critical for PHEV models - BMW releases software updates that address known integration issues. If your 25e shows drivetrain errors or warning lights, the first step should be a dealer or BMW specialist software update. This often resolves the issue for under £350. Only consider hardware replacement if software updates fail.
-> Compare BMW X1 25e hybrid system diagnostic and repair costs

Don't Let PHEV System Failure Write Off Your BMW X1 25e

The failures above account for the majority of BMW X1 25e powertrain enquiries we see - battery degradation, electric motor wear, and software integration faults. Unlike conventional X1 petrol or diesel variants, the 25e requires specialist hybrid-safe workshops with high-voltage training and BMW-specific diagnostic equipment. Engines Market makes it simple to compare prices from trusted UK BMW X1 25e specialists who understand PHEV systems - whether you need a battery health check, motor repair, or a full rebuilt engine. Every rebuilt engine includes a minimum 12-month unlimited-mileage warranty, nationwide delivery, and supply & fit options. Compare prices today and get back on the road without the main dealer premium.

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FAQ

BMW X1 25e Engine ReplacementFrequently Asked Questions

Everything BMW X1 25e owners usually ask before choosing a rebuilt, reconditioned or used replacement engine.

Why Choose Us

Compare BMW X1 25e Engine Prices Today

Comparing quotes for your BMW X1 25e is free, fast, and completely no-obligation. Enter your registration above to receive tailored prices from UK BMW hybrid specialists for your exact engine code and PHEV generation. Whether you need a battery health check, a used B38 unit, or a fully rebuilt engine with warranty, our network covers it all. Get back on the road with confidence and without the main dealer premium.

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