AV-SCANNER guides
Every guide behind the AV-SCANNER's Service Function, IMMO and Accessories apps, in one place. Read them online or download each one as a PDF for the workshop.
Run electric pumps and purge air from the system
Find coolant leaks before they cause overheating
Prove why an engine overheats or stays cold
Check pressures and vent temperature readings
Relearn blend and mode doors after a battery change
Replace cooling parts and refill properly
Recognise and replace a failing water pump
Prove a head gasket failure before stripping the engine
Work methodically through an overheating engine
Understand refrigerants, leaks and legal limits
Find why the heater blows cold
Replace the filter and fix a dead blower
Choose the right coolant and replace it safely
Test fan motors, relays and modules
Test clutch, pressures and compressor faults
Clear musty smells and blocked drains
Look up a fault code, run a local diagnosis and open the right guide from the reader's own menus.
Get the app
Quick access from your home screen.