I just cleared the DTC memory of all codes and scanned it once again...

VAG-COM Version: Release 311.2-N


Chassis Type: 4D - Audi A8 D2
Scan: 01,02,03,08,15,16,17,35,36,37,45,55,56,65,76

Address 01 -------------------------------------------------------
Controller: 4D0 907 557 J
Component: 4,2L V8/4V MOTR AT D01
Coding: 03263
Shop #: WSC 02314
No fault code found.

Address 02 -------------------------------------------------------
Controller: 4D0 927 156 E
Component: AG4 GETRIEBE 018 D40
Coding: 00000
Shop #: WSC 00000
1 Fault Found:
00526 - Brake Light Switch-F
03-00 - No Signal

Address 03 -------------------------------------------------------
Controller: 4D0 907 379 L
Component: ABS/EDS BOSCH 5 7680
Coding: 0265109043
Shop #: BB 37680
No fault code found.

Address 08 -------------------------------------------------------
Controller: 4D0 820 043 C
Component: D2-KLIMAVOLLAUTOMAT_D03
Coding: 00180
Shop #: WSC 02314
1 Fault Found:
00801 - A/C Refrigerant High Pressure Switch (F118)
30-10 - Open or Short to B+ - Intermittent

Skipping Address 15-Airbags

Address 17 -------------------------------------------------------
Controller: 4D0 919 033 K
Component: D2-KOMBIINSTRUMENT__D21
Coding: 00183
Shop #: WSC 01588
No fault code found.

End -------------------------------------------------------

 

1. You say your electric fan isn't running until you spin it, that's why you get your high pressure A/C switch tripping, because you do not have adequate cooling to the condenser.

2. See below.<ul><li><a href="http://www.audipages.com/Tech_Articles/auto_transmission/brakeswitcherror.html">Brake Switch Malfunction Code</a></li></ul>