Advancer AD20

XTOOL

About this app

Advancer AD20 is a Smart OBD-Ⅱ Dongle based on wireless communication. With the dongle and the mobile app, AD20 provides functions like vehicle health check, fault diagnostics, driving habits monitoring and trip recording for various car owners.

Vehicle Inspection:
Advancer AD20 can read the fault code info stored inside the vehicle ECU and categorize them according to the the falut types.
AD20 not only supports the standard OBD-Ⅱ protocols but also OEM specialized protocols, providing OEM-level engine diagnostic services.

Vehicle Live Data:
After starting the vehicle, AD20 can demonstrate various vehicle status data like battery voltage, coolant temperature, engine rev, fuel correction and engine loads in details, letting car owners know the vehicle status in real time.
Note: Only use this function when the car is in idle.

Maintenance Light Reset:
Reset the vehicle maintenance light after finishing the maintenance process. For your driving safety, please do the maintenance in strict accordance with the vehicle repair manuals.

Trip Recorder:
When driving, AD20 can record the average speed, fuel consumption, mileage, max engine rev, max coolant temperature, etc., and demonstrate them on the app to help owners know the actual vehicle status and fuel consumption at driving.

Driving Habits Monitoring:
The sensors inside AD20 can sense driving habits like sharp turns, heavy brakes and sudden acceleration, analyze them and show them on the app, which helps you improve your driving skills.

Ratings and reviews

Was working perfectly until the last update, 15 September 2025, now app won't start on my Android 14 phone, even though it states that it works with android 7 and above.

app quit working for no reason, won't even open, have had it and scanner for over a year

Very impressed, it's done everything I've needed it to do when I've had an issue with both my last car a 2011 Audi A6 S-Line 2.0 TDI & my current car 2018 Jaguar XE 2.0 TDI R Sport. It's probably saved me £500 in potential charges to have engine check lights & other issues scanned by a garage. It can't perform an EPB service mode, but for what it costs, it does many many things & crucially gives you a diagnosis as to what the many sensors modern cars have are saying.