Porsche 996 TT, Repair Manual

Page: 1123 / 2099

22. Disconnect the central plug connections (2 ea.) from the heater/air−conditioning unit.
23. Loosen battery positive connection at the current distributor and current distributor −arrows− at the
firewall cover.
24. Clamp shut both heater hoses in front of the heat exchanger with a commercially available hose clamp.
Disconnect the heating hoses on the heat exchanger and plug the connections.
25. Undo heater/air−conditioning unit on the firewall cover (3 nuts). Pull off the water drainage hose from the
heater/air−conditioning unit.
26. Undo holder of the heater/air−conditioning unit from the passenger's side at the top right −arrow− .
27. Carefully lower the heater/air−conditioning unit downwards into the footwell and remove. Do
not damage the electrical plug connections or cables.
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Installing heating/air−conditioning unit
WARNING
Danger of injury if airbag units are triggered while ignition key is not removed!
Always remove ignition key during body work, and do not commence work until a waiting period of
at least 1 minute has elapsed! •
1. Ensure that the air distributor casing and air guides are correctly positioned. Engage the electrical plug
connections and carefully lay the electrical cables (do not pinch).
einordnung
Installing heating/air−conditioning unit 1060