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MAEXTRO S800 Maintenance and EV System Care at EVS in China
The MAEXTRO S800 is the flagship of HUAWEI's vehicle alliance: a large luxury saloon with an 800-volt architecture, rear-axle steering and air suspension. EVS will service its high-voltage system, chassis electronics and assistance sensors.
Tell Me When You Open
About MAEXTRO S800.
MAEXTRO S800 Repair & Maintenance Services.
Programming & Software
Optimize Your EV’s Performance with Expert Programming and Software Solutions
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Mechanical Services
Keep Your EV Running Smoothly with Top-Notch Mechanical Care
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Battery & Electrical
Power Up Your EV with Advanced Battery and Electrical Solutions
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Body & Paint
Restore Your EV’s Look with Expert Body and Paint Services
View All Body & Paint Services
Insurance Services
Seamless Insurance Support for Your EV Needs
View All Insurance ServicesOther EV brands the centre will cover.
Frequently Asked Questions.
- 29
- EV brands covered
- 65
- Models with a service page
- 5
- Workshop disciplines
- 4
- Countries EVS operates in
This brand in China
China ended 2025 with 43.97 million new-energy vehicles in use, and the China Automobile Maintenance Industry Association has been reported as counting only 20,000 to 30,000 workshops equipped for them against roughly 400,000 for petrol cars. Whatever you drive, the shortage is not of garages. It is of garages that can safely open a high-voltage system, read what it says, and complete the calibration afterwards.
Four patterns, and most of the work is in them...
Four patterns account for most of the work on electric cars in a market like this one, and EVS workshops elsewhere see the same four. None of them is unusual. What is unusual here is how few workshops are equipped to tell them apart.
A battery quote that should have been a module
The first large out-of-warranty bills are arriving as the 2020-2023 cohorts leave cover. A pack is not always the answer: a single module, a contactor, a cooling circuit or a sensor can present the same way and cost a fraction. The difference is whether anyone measured before quoting.
Calibration nobody can complete
After a collision repair, a windscreen change or suspension work, the driver-assistance cameras and radar need recalibrating. Yicai Global has reported third-party repairers in Shanghai unable to obtain the data and equipment to do it. The car leaves looking finished, with its sensors pointing at the wrong place.
Thermal loss that never lit a warning
A cooling circuit running below par throws no fault code. It simply ages the pack, and the owner meets it two or three years later as range that will not come back. It is found by measuring coolant temperatures under load, not by reading codes.
A dead car with a full battery
No screens, no door unlock, no response - while the traction pack shows plenty of charge. It is the 12-volt battery, which wakes the car and which the high-voltage system cannot come on without. Cheap part, common failure, and it strands people who were told their car had 400 km left.
What this will look like when we open...
The Shanghai centre has not opened yet, so this is what we are building toward rather than what you can book today.
Tell us the symptom
Not the diagnosis. What the car is doing, when it started, and whether anything changed before it - a service, a collision, a software update, a cold week.
We measure before we quote
Fault codes say where the alarm went off, not why. Data streams, actuator tests and circuit measurements say why. The quote comes after that, not before.
You get the finding in writing
What is wrong, what it will cost, and what can wait. If a cheaper repair will do the job, that is the one we will put in front of you.
The work is verified, not just finished
Anything that needed coding gets coded. Anything that needed calibrating gets calibrated and recorded. A job that was not verified is a job that comes back.
Your EV deservesspecialist hands.
Diagnostics, repairs and maintenance from technicians who work exclusively with electric vehicles.