Function Test (Customer Service Start)
Prerequisites:
Climate Control OFF
Enough Fuel in Fuel Tank (clearly NOT on reserve)
Battery charged
Coolant Temperature below 60 °C
Do NOT disconnect VAG-COM while performing this procedure.
[select]
[18 - Aux. Heater]
[basic Settings - 04]
Group 011
[Go!]
Activate the Basic Setting.
[ON/OFF/Next]
Observe Field 3, it represents the current status of the system.
[Done, Go Back]
[Close Controller, Go Back - 06]