Chinese EV repair data, diagnostics and hands-on support
Official manufacturer documentation and fault-code coverage for BYD, Geely and Tesla — plus remote guidance from technicians who work on these cars every day. Built for independent workshops, not franchised dealers.
- Official documentation, not forum guesswork
- Fault codes for BYD, Geely and more — added daily
- Help while the car is still on the ramp

Two things a manual cannot do for you
Data gets you most of the way. These two cover the rest — the point where a vehicle is on your ramp and the clock is running.
A car in the bay and no way forward?
Send the model, the VIN and the fault codes you are seeing. A technician who works on Chinese EVs every day walks you through the diagnostic path and the order of operations — while you do the job in your own workshop. No swapping parts on a hunch.
Parts you cannot get from your local factor
OEM and OEM-equivalent components for BYD, Geely and other Chinese brands. Give us the part number, or send the VIN and we will confirm the correct item for that build before anything ships.
Repair data written for a technician on a ramp
Three tracks, all of it aimed at somebody holding a spanner rather than sitting in a meeting.
Step-by-step procedures
The order of operations spelled out, fasteners and torque values listed where manufacturers publish them, and the mistakes that cause comebacks flagged before you make them.
How it works, how it fails
Cooling loops, charge systems, heat pumps and high-voltage architecture — organised around the symptoms a customer actually reports when they hand you the keys.
What is actually available
What each manufacturer publishes free, what stays behind a dealer portal, and how to get hold of what genuinely exists. No dead links, no fake service manuals.
Start with the brand on your ramp
Platform background, known faults and what changes between model years — then straight into the individual models.
Look up a fault code before you touch anything
A growing library of BYD and Geely diagnostic trouble codes — what the code means, the likely causes behind it, and the order to check them in. New entries are published on a daily schedule, so the library is deeper every week.
Why workshops keep coming back
Four commitments that decide what gets published here and what does not.
Sourced, not scraped
Specifications come from manufacturer documentation. Where something is not published at all, we say so instead of inventing a plausible number.
Written for independents
Nothing here assumes you have a dealer diagnostic tool, a franchised parts account or manufacturer software access.
High-voltage safety first
Isolation and shutdown information is treated as non-negotiable on every job, not as an optional extra at the end.
Updated every day
The fault-code library grows on a fixed daily schedule, and new procedures and documentation reviews are added continuously.
Stuck on a job right now?
Send the model, the VIN and the fault code. We will tell you what to check and in what order, so you can finish the job in your own workshop.