EV battery work cost
How much does electric car battery work cost?
Quick answer
£1,200–£8,000
At a UK independent garage, including parts, labour and VAT. The price covers module replacement or pack repair at an independent EV specialist, or a dealer pack exchange. Franchise dealer pricing usually sits 40-80% higher, and prestige or electric models sit at the top of the band.
Symptoms that point at it
- range well below the official figure
- state of health under 85% for the age
- slow DC charging or charging faults
- warning about reduced power
Ask for a state-of-health reading before you talk price, and check what is left of the battery warranty · that number, not the mileage, sets what the car is worth.
Models where we document this fault
| Model | Documented symptom | Typical cost |
|---|---|---|
| BMW i4 | State of health variation on rapid charged cars | £1,200–£8,000 |
| Cupra Born | State of health falling below expectations on early cars | £1,200–£8,000 |
| Hyundai Ioniq | Traction battery health variation, particularly on ex-private-hire cars | £1,200–£8,000 |
| MG HS | PHEV battery health and charging faults | £1,200–£8,000 |
| MG MG4 | State of health variation on rapid charged cars | £1,200–£8,000 |
| Nissan Ariya | State of health lower than expected on early high-mileage cars | £1,200–£8,000 |
| Renault Zoe | State of health drop on rapid charged cars | £1,200–£8,000 |
| Volvo XC40 | PHEV and EV battery health and charging faults | £1,200–£8,000 |
| Audi Q4 e-tron | Onboard charger and rapid charging speed inconsistencies | £600–£2,600 |
| BMW 7 Series | Vehicle refuses to charge from a wallbox or displays a drivetrain malfunction warning due to a failed KLE (Convenience Charging Electronics) module. | £600–£2,600 |
| Citroen C5 Aircross | Onboard charger (OBC) failure on PHEV models prevents the vehicle from accepting a charge, often indicated by a red flashing light at the port. | £600–£2,600 |
| Cupra Formentor | Charging port flap on e-Hybrid models jams shut or fails to latch due to a faulty actuator solenoid. | £600–£2,600 |
| Kia K5 | Infotainment reboots and USB/charging faults. | £600–£2,600 |
| MG ZS | Front charging port door sticking or failing to latch on EV models | £600–£2,600 |
| Skoda Enyaq | Onboard charger or DC rapid charging faults | £600–£2,600 |
| Toyota Auris | Inverter electric water pump failure, leading to hybrid system overheating and dashboard warning lights. | £900–£2,600 |
| Toyota RAV4 | Electric water pump failure on hybrid models leading to inverter overheating and a 'Check Hybrid System' warning. | £900–£2,600 |
| Volkswagen ID.4 | Onboard charger and rapid charging inconsistencies | £600–£2,600 |
| DS DS 7 Crossback | E-Tense plug-in hybrid battery and charging faults | £400–£1,400 |
| Hyundai Ioniq 6 | ICCU failures preventing charging or 12V top-up, subject to recall action | £400–£1,400 |
| Kia EV9 | ICCU faults affecting charging and 12V supply, addressed by recall updates | £400–£1,400 |
| Mazda CX-60 | PHEV drive battery and charging faults on plug-in models | £400–£1,400 |
| Tesla Model S | Capacity loss and charging limits on early packs | £400–£1,400 |
| Chevrolet Bolt EV | Charging limits applied by software | £120–£1,200 |
| Tesla Model 3 | Charge cable fails to lock into place or gets permanently stuck in the socket due to a failed locking deadbolt. | £120–£1,200 |
| Citroen C4 | 1.2 PureTech wet belt degradation | £450–£1,100 |
| Ford C-Max | Wet belt degradation on 1.0 EcoBoost | £450–£1,100 |
| Ford S-Max | Low oil pressure warning due to wet timing belt degradation blocking the oil pickup strainer. | £450–£1,100 |
| Ford Transit Connect | Low oil pressure warning and brake servo failure due to wet belt degradation. | £450–£1,100 |
| Honda Civic | Wet timing belt degradation causing oil starvation and complete engine failure. | £450–£1,100 |
| Peugeot 5008 | Wet belt degradation on PureTech petrol | £450–£1,100 |
| Toyota Proace City | 1.2 PureTech petrol wet cambelt degradation | £450–£1,100 |
| Vauxhall Corsa | 1.2 PureTech (Corsa F) wet belt degradation | £450–£1,100 |
| Vauxhall Grandland | Charging flap locking actuator seizes, preventing the flap from opening or trapping the charging cable in the port. | £250–£1,100 |
| BMW i3 | Spurious 'Drivetrain Malfunction' errors, locked charging cables, or complete vehicle immobilisation due to a degraded 12V battery. | £300–£900 |
| Honda Jazz | Grinding noise on startup or intermittent failure to crank due to starter motor degradation, particularly on Mk3 push-button start models. | £300–£900 |
| Hyundai Ioniq 5 | Integrated Charging Control Unit (ICCU) failure preventing AC charging or displaying a 'Check EV System' warning. | £300–£900 |
| Kia EV6 | Failure to AC charge or dashboard warning 'Check Electric Vehicle System' due to ICCU (Integrated Charging Control Unit) failure. | £300–£900 |
| Lexus IS | Hybrid battery degradation on high mileage cars | £300–£900 |
| Nissan Murano | Oil leaks and whining noises from the front transfer box on AWD models. | £300–£900 |
| Porsche Cayenne | Hybrid drive battery degradation on E-Hybrid models | £300–£900 |
| Toyota Aygo X | Canvas roof on Air Edition models sticking or suffering from wind noise due to seal degradation. | £300–£900 |
| Toyota Verso | Clutch judder and metallic rattling at idle due to dual-mass flywheel (DMF) degradation on D-4D diesel variants. | £300–£900 |
| Toyota Aygo | Battery drain from short-trip use | £150–£800 |
| Toyota Venza | Infotainment glitches and wireless charging pad faults. | £200–£800 |
| Toyota Prius | Inverter/hybrid coolant pump failure triggering warning lights. | £220–£750 |
| Cupra Leon | eHybrid charging faults and reduced electric range | £180–£700 |
| Mazda MX-30 | Rapid charging tapering early on a small pack | £180–£700 |
| Hyundai i10 | Battery drain from short trips and failing alternator | £150–£650 |
| Kia Niro | 12V battery and charging faults on PHEV and EV cars | £150–£650 |
| Mitsubishi Mirage | Battery flat on cars that only cover short trips | £80–£350 |
Worried this is due on the car you're looking at?
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Check a carCosts are indicative bands for budgeting and negotiation · always get a written quote from your own garage.