Chinese EVs are not a future problem for UK workshops any more. They are already here: BYD, MG, GWM ORA, Omoda, Jaecoo, XPeng, Leapmotor, Geely, Zeekr, Polestar, Volvo EX30, Smart and Lotus are all part of the same shift — more high-voltage cars, more software-controlled electrical faults, and more owners who need someone outside the dealer network who understands diagnostics.
Quick answer: ECU Repair UK / Auto Electronix offers mobile Chinese EV diagnostics from £100 within a 30-mile radius of Basingstoke. For jobs outside that radius, use the quote form at the bottom of this page with your vehicle, postcode, symptoms and any warning messages. We will confirm whether mobile attendance, remote advice or workshop/postal module testing is the right route.
Chinese EV brands we can help diagnose
This page is aimed at owners and garages dealing with newer Chinese-built or Chinese-owned EV platforms in the UK, including:
| Brand / range | Typical UK examples | Diagnostic focus |
|---|---|---|
| BYD | Atto 3, Dolphin, Seal, Seal U | 12V supply faults, charging issues, module communication, warning lights |
| MG | MG4 EV, MG5 EV, ZS EV, Cyberster | No-start/no-ready faults, charging faults, body electronics, CAN communication |
| GWM ORA | ORA 03 / Funky Cat | EV warning messages, charging and low-voltage faults |
| Omoda / Jaecoo | Omoda E5, Jaecoo plug-in/EV platforms | Dealer-level direction, electrical fault triage, DTC interpretation |
| XPeng | G6 and newer UK models | Software-heavy diagnostics, network and module fault direction |
| Leapmotor | T03, C10 and Stellantis-backed UK models | EV/low-voltage diagnosis, charging and warning-light triage |
| Geely / Zeekr | Geely EX models, Zeekr EVs where present | EV platform diagnostics and electrical fault direction |
| Polestar / Volvo / Smart / Lotus | Polestar 2/3/4, Volvo EX30, Smart #1/#3, Lotus Eletre/Emeya | Geely-group EV electrical systems, 12V/HV interface faults, comms faults |
If your exact model is not listed, still ask. The important thing is the fault pattern: will not go ready, EV system warning, charging failure, 12V battery drain, no communication, module/network fault, ADAS/body electrical fault, or post-collision/post-repair warning lights.
What we actually do on a mobile EV diagnostic visit
A useful EV diagnostic is not just clearing codes. On these cars, a weak 12V system, a sleeping module, a gateway fault or a charger communication problem can make the whole vehicle look worse than it is.
A normal first visit can include:
- 12V battery and power-supply checks — many EV faults start on the low-voltage side
- Full-system diagnostic scan where tool coverage allows
- High-voltage warning-message triage without unsafe battery dismantling at the roadside
- Charging-port and charge-session fault direction
- CAN / LIN / gateway communication checks where the symptom points that way
- Module fault-code interpretation for garages that need a second opinion
- Advice on whether the car needs dealer software, workshop repair, module testing or further electrical tracing
We are not pretending every Chinese EV can be fixed on the driveway in one visit. Some need manufacturer software, battery-pack work, warranty/dealer intervention or parts availability checks. The point of the visit is to stop guesswork and identify the next correct step.
Pricing — from £100 within 30 miles of Basingstoke
For Chinese EV diagnostic callouts within a 30-mile radius of Basingstoke, pricing starts from £100 for an initial mobile diagnostic visit.
That local radius normally covers areas such as:
- Basingstoke
- Hook
- Fleet
- Farnborough
- Reading
- Newbury
- Andover
- Winchester
- Alton
- parts of Hampshire, Berkshire and Surrey depending on distance and traffic
For other locations, please use the form below. Put your postcode, vehicle registration, make/model, warning message, and whether the car drives, charges or goes ready. We will quote the travel/diagnostic cost before booking.
Common Chinese EV faults worth checking before replacing parts
Before spending money on a charger, battery component, body control module or dealer visit, these are the areas we normally want to prove:
- 12V battery health and voltage stability — EVs still rely on the low-voltage network to wake up the vehicle.
- Charging communication — the fault may be the car, cable, charger, charge port or control module.
- Gateway / CAN communication — one module can pull down a network and create misleading faults elsewhere.
- Software state and stored DTCs — some faults need a proper scan report before anyone can make a sensible decision.
- Water ingress or accident history — common around connectors, modules and body electronics.
- Warranty boundary — if the HV battery or manufacturer campaign is involved, diagnosis should support a dealer/warranty route rather than fight it blindly.
For garages: use us as a second-opinion EV diagnostics partner
If you are a garage with a BYD, MG, ORA, Omoda, Jaecoo, XPeng, Leapmotor, Geely-group, Polestar, Volvo EX30, Smart or Lotus EV stuck on site, we can help narrow the fault before you throw parts at it.
Send the scan report, symptoms, registration and location. If the car is near Basingstoke, we may attend mobile. If it is further away, we can still advise whether the fault looks like charging, 12V, gateway/network, module, dealer software or HV-system escalation.
FAQ
Do you repair high-voltage EV battery packs at the roadside?
No. We do mobile diagnostics and electrical fault direction. High-voltage pack opening is specialist workshop work with the right safety process, tooling and environment. A mobile visit can still tell you whether the fault is likely HV battery, 12V supply, charging communication, module/network or dealer software.
Is this only for Chinese brands?
No — we work on automotive electronics generally. This page exists because Chinese EVs are becoming common in the UK quickly, and owners/garages need a clearer route than “try the dealer and wait”.
Can you diagnose BYD and MG EVs?
Yes, depending on the exact model, access and fault. BYD Atto 3, Dolphin, Seal, MG4, MG5 and ZS EV are exactly the kind of cars this service is intended for: warning lights, charging faults, 12V issues, no-ready symptoms and network/module faults.
How much is a Chinese EV diagnostic callout?
From £100 within 30 miles of Basingstoke for the initial mobile diagnostic visit. Other locations are quoted individually — use the form below and include your postcode.
What information should I send first?
Vehicle registration, make/model/year, postcode, whether the car drives or charges, the dashboard warning message, any fault codes or scan report, and a short description of what happened before the fault appeared.
Book a Chinese EV diagnostic
If you are within 30 miles of Basingstoke, ask for the Chinese EV mobile diagnostic from £100. If you are outside that area, use the same form and we will quote the correct travel/diagnostic route.
- Local diagnostic start price: from £100 within 30 miles of Basingstoke
- Phone / WhatsApp: 07404 487674
- For other locations: complete the quote form below with postcode and symptoms
- Related service: mobile diagnostics across London and the South East
- Main workshop services: ECU repair, module cloning and automotive electronics