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Electrical checking of solar roof > < Operation of heated windscreen Z2

A4 Mk2

Deactivating heated windscreen
Deactivating heated windscreen
  Note
t  The heated windscreen control unit -J505- is installed in the plenum chamber beneath the battery -A- → Current flow diagrams, Electrical fault finding and Fitting locations.
t  If a crack forms in the windscreen due to external influence (e.g. flying stones), the heated windscreen is to be deactivated to prevent crack propagation.
   
t  So as not to restrict operation of the air conditioner, actuation of the heated windscreen control unit -J505- is to be disconnected until the damaged heated windscreen -Z2- has been replaced. To do so, unplug connector -A- from heated windscreencontrol unit -J505--B-.
  A87-0392
t  Depending on the version of the heated windscreen control unit -J505-, the connector (connector -A-) is not located directly at the heated windscreen control unit -J505-, but rather in the wiring on the right in the direction of travel next to the battery -A-. Connector -B- to the heated windscreen is also located at this point.
t  The operating and display unit, Climatronic control unit -J255- does not actuate the heated windscreen control unit -J505- in “Econ” mode.
  A87-0489

Electrical checking of solar roof > < Operation of heated windscreen Z2