Audi Workshop Service and Repair Manuals

Note:

To check the speed signal after switching on the ignition, move the vehicle a few metres at walking speed.

Preconditions:

• ● Fault memory interrogated .
• ● Engine still idling after the interrogation of the fault memory
• ● Air conditioner system switched on.
• ● Run fresh-air blower for approx. 1 minute at a high speed (only operating and display unit with Part No. 8D0 820 043 index "C").

• ‒ Press the PRINT key to switch on the printer - (indicator lamp in key lights up).
• ‒ Enter "08" for the function "Reading measured value block" and confirm entry with Q key.

• ‒ Confirm entry with Q key.

• ‒ Enter the display group number. =>Overview of display group numbers to be selected.
• ‒ Vehicles to Model Year 1996 .
• ‒ Vehicles from Model Year 1997 =>from Page 01-106.

The measured value block shows 4 display zones:

Note:

To change to another display group, proceed as follows:

Notes:

• ◆ If the printer is switched on, the current display will be recorded in the form of a printout.
• ◆ If displayed values are to be read out while moving, a second operator is required.
• ◆ Observe safety precautions=> Page 01-8.

• ‒ Press ⇒key if specified values are attained.

Notes for -E87 with Part No. 8D0 820 043 index "C":

During the self-diagnosis, the air conditioner control is switched off. When reading the different measured value blocks, note the following:

• ◆ All display zones marked with an * indicate the measured value valid on entering self-diagnosis mode.
• ◆ All display zones not marked with a * indicate the current measured value.
• ◆ If the displayed values are in display groups 002 - 005 (display zones 1and 2) are ambient the permitted tolerances:
• ‒ Terminate the self-diagnosis.
• ‒ If necessary, alter setting on the operating and display unit -E87.
• ‒ Run fresh-air blower at high speed for approx. 1 minute.
• ‒ Initiate self-diagnosis and read out measured value block.

Notes for -E87 with Part No. 8D0 820 043 from index "D" or Part No. 8L0 820 043 from index "A":

• ◆ During the self-diagnosis, the air conditioner control is kept on.
• ◆ The display groups 002 - 005 display the currently valid actual or specified value or the last value learnt and stored for the limit stops of the individual positioning motors during the basic setting.
• ◆ The control button on the -E87 may be pressed to change the setting of the positioning motors and hence the flaps during the self-diagnosis. The current actual and specified values may be read directly from the fault reader display.
• ◆ In Model Year 1996, in vehicles with 6-cylinder engines, compressors from the manufacturer "Nippondenso/Denso" are gradually replacing the former Zexel compressor. The air conditioner compressor speed sensor -G111 is omitted.