BMW i4 G26 Engines -The Complete UK Guide
Every powertrain fitted to the BMW i4 G26 -from the 282 bhp rear-drive eDrive35 to the 593 bhp all-wheel-drive M60 xDrive. Real UK costs, honest reliability data, and the fifth-generation eDrive technology that defines BMW's electric Gran Coupé. Backed by real UK 4 Series enquiries in 2025 [BMW-VERIFIED].
Explore G26 Powertrains
BMW i4 G26 Powertrain Codes -The Complete Database
Every powertrain fitted to the i4 G26 specifically -from the 2021 launch through to the current M60 flagship and LCI updates.
Overview
BMW i4 G26 -Overview
The BMW i4 G26 is a battery electric compact executive car produced by BMW since October 2021.
It adopts a five-door liftback body style and is marketed as a four-door coupé, sharing its body-in-white with the combustion-engined 4 Series Gran Coupé. The i4 is powered by BMW's fifth-generation eDrive technology, featuring 3-phase electrically excited synchronous motors. The powertrain line-up has evolved over its production run: the eDrive35 (286 bhp) and eDrive40 (340 bhp) are rear-wheel drive; the xDrive40 (401 bhp) and M50 (544 bhp) introduced all-wheel drive; the M60 xDrive (601 bhp) replaced the M50 in 2024 as the range-topping model. A 2024 facelift (LCI) introduced updated styling and revised battery options.
Key Facts
Platform
BMW CLAR (Cluster Architecture)
Predecessor
None (first electric 4 Series)
Successor
Current model -on sale
Sibling body styles
G22 Coupé, G23 Convertible -combustion-engined variants
Market Intelligence
The i4 G26 is BMW's best-selling electric model in the UK; enquiries are concentrated on battery health, charging system diagnostics, and range concerns, with values ranging from £35,000 for early eDrive35 examples to £65,000+ for well-specced M60s.
Best & Worst Engines
Highest Risk
Early eDrive35 (2021–2022) -Early i4s (particularly 2021–2022 eDrive35 models) have documented battery management system issues and charging port failures. The smaller 66 kWh battery also suffers from more rapid degradation than the larger 80.7 kWh units.
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Who it's for: only buyers with comprehensive BMW warranty cover.
Most Expensive Failure
M60 xDrive Battery Pack -The 80.7 kWh battery pack in the M60 is the most expensive component to replace, with costs exceeding £25,000 for a complete battery module replacement. The dual-motor configuration also adds complexity.
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Who it's for: buyers who accept the premium and keep the car under warranty.
Most Overlooked
xDrive40 (401 bhp) -Often overshadowed by the M50 and M60, the 401 bhp xDrive40 delivers genuine performance (0-60 in 5.1 seconds) with all-weather traction. It's the sweet spot for UK buyers who want AWD without the M-badge premium.
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Who it's for: buyers who want all-weather performance without the M60's running costs.
BMW i4 G26 -Ownership Economics
The G26 rule
A £14,000–£20,000 eDrive40 battery replacement against a £25,000–£35,000 early i4 sits at 40–80% of the car's value. On a sub-£25,000 example, that brushes our 70% BMW threshold -we'll honestly tell you to walk away. Against a well-kept £35,000+ example, the same replacement drops to a routine 40–57% -a repair decision, not a financial one. Value the car first.
Key Takeaways
Which G26 Costs Least To Own?
eDrive40 -best range, most common, best parts availability.
Which G26 Costs Most To Own?
M60 xDrive -battery replacement and motor repairs are most expensive.
Which G26 Is Best Value?
eDrive40 -the sweet spot between performance, range, and running costs.
Common Problems
G26 Powertrain Replacement Costs -By Variant and Condition
Core Variants
Diesel & Petrol Lineup
Scope note: All variants listed are G26 i4 only. The G26 is the electric variant of the 4 Series Gran Coupé -the combustion-engined G26 (420i, 430i, M440i) are covered on a separate Generation Page. The M60 xDrive replaced the M50 in 2024 as the range-topping model. The eDrive35 uses a smaller 66–70 kWh battery; all other variants use the 80.7–83.9 kWh battery.
Market Intelligence
Most Requested E90 Engines (2025)
Most Requested E90 Variants
- 1.1. eDrive40
- 2.2. M50
- 3.3. xDrive40
Average E90 Replacement Cost
£12,000–£28,000 supply-only [BMW-QUOTE]
Most Common E90 Failures
- 1.1. Battery degradation (early eDrive35)
- 2.2. Charging port/CCS socket failure
- 3.3. Motor bearing wear (M50/M60)
BMW i4 eDrive40
G26
4
enquiries
BMW i4 M50
G26
3
enquiries
BMW i4 M60 xDrive
G26
2
enquiries
FAQ
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Trusted G26 Battery Specialists
every garage and battery specialist in our network is vetted, rated and reviewed by real i4 owners, as part of the Engine Finders network.
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see prices, warranty terms and supply & fit options side-by-side before you commit.
UK Battery Replacement Services for G26
covering every variant from eDrive35 to M60 xDrive, with supply-only or full supply & fit available nationwide.
Find the best BMW i4 G26 battery replacement UK drivers rely on. Compare real prices from trusted specialists on EnginesMarket today and get back on the road with confidence.
