AV-SCANNER guides
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.
Oil Service Reset
Reset the oil service interval after an oil and filter change
Oil Life Monitor Explained
How the car calculates oil life and when to trust it
Throttle Body Adaptation
Relearn the electronic throttle after cleaning or replacement
Idle Relearn Procedure
Restore a stable idle after a battery or sensor change
Crankshaft Position Variation Learn
Teach the computer tooth-to-tooth crank variation
Variable Valve Timing Service
Check and service cam phasers and oil control valves
Timing Chain Stretch Check
Use cam and crank correlation data to judge chain wear
Compression and Leak-Down Testing
Prove the mechanical health of each cylinder
Spark Plug and Coil Service
Replace ignition parts and confirm the misfire has gone
Mass Air Flow Sensor Service
Clean, test and confirm a MAF sensor with live data
Timing Belt Replacement Planning
Know when a belt is due and what to replace with it
Valve Clearance Check
Measure and correct valve clearances
PCV System Service
Test crankcase ventilation and cure oil consumption
Oil Pressure Testing
Measure real oil pressure and trace warning lights
Oil Leak Tracing
Find the true source of an engine oil leak
Turbocharger Inspection
Check shaft play, boost leaks and oil supply
Boost Leak Test
Pressure test the intake and find boost leaks
Knock Sensor Diagnosis
Test knock sensors and read knock retard data
Engine Misfire Diagnosis
Find a misfire by cylinder using scan data and swaps
Rough Idle Diagnosis
Work through the causes of an unstable idle
Engine Mount Inspection
Diagnose vibration and worn mounts
Serpentine Belt Service
Inspect and replace the belt, tensioner and idlers
Engine Oil Selection Guide
Read viscosity and specifications and pick the right oil
Excessive Oil Consumption Diagnosis
Find where the oil is going
Use them with the AV-SCANNER
Look up a fault code, run a local diagnosis and open the right guide from the reader's own menus.
