Warning: Anyone using VCDS login codes and modifying or adjusting corresponding values (especially for 12233 and 40168) should have sufficient expertise and experience!
Absolutely do not experiment lightly with logins and adaptation channels/adaptation channels!
Not all of the listed functions are possible on every control device; some login codes only apply to TDI.
Engine Control Unit:
01283 Activation of GRA for "very old" vehicles
11463 Activation of GRA "older" vehicles (newer vehicles see
Logincode GRA/Tempomat retrofit)
16167 Deactivate GRA
12233 Access to adaptation channels in some control units
22158 Access to Adaptation Channels for Motor Identifier AEL
26262 Access to adaptation channels in some control units
10111 HGB applicability for certain tax devices
20973 HGB applies to certain tax equipment
22433 'Trailer control unit not installed' set
22466 'Customer-installed trailer control unit installed'
Combo instrument:
13861 The distance traveled counter can be adjusted in channel 9.
Only up to 100 kilometers and only in the upward direction.
ABS Control Unit:
40168 Access to various basic settings