To make all functions work correctly, the control unit must be coded according to the corresponding equipment.
Note:
Faulty coding can reduce the car's safety/performance.
The control unit must be of a correct version to accept the code.
Test prerequisites:
Ignition on, engine off.
Battery voltage above 12 V.
Electrical consumers switched off.
Procedure:
Choose the function: "Code control unit".
The actual code in the control unit is presented. "Change value is presented". Confirm with YES.
Enter the new code (see below) in the presented input field, confirm with OK.
Code number: | Function: |
0 X X X X | Manual gearbox |
1 X X X X | Automatic gearbox |
X 0 0 X X | Steering wheel without multifunction and Tiptronic control |
X 1 1 X X | Steering wheel with Tiptronic control, without multifunction |
X 2 0 X X | Multifunction with radio function, without Tiptronic control |
X 3 0 X X | Multifunction with radio/phone function, without Tiptronic control |
X 4 0 X X | Multifunction with radio function, prepared with mobile functions, with voice control, without Tiptronic control |
X 5 0 X X | Multifunction with radio/voice control, without Tiptronic control |
X 2 1 X X | Multifunction with radiofunction, with Tiptronic control |
X 3 1 X X | Multifunction with radio/phone function, with Tiptronic control |
X 4 1 X X | Multifunction with radio function, prepared with mobile functions, with voice control, with Tiptronic control |
X 5 1 X X | Multifunction with radio/voice control, with Tiptronic control |
X X X 0 X | Without trip computer and cruise control |
X X X 1 X | With trip computer, without cruise control |
X X X 2 X | With cruise control, without trip computer |
X X X 4 X | With trip computer and cruise control |
X X X X 1 | Vehicle variant TT |
Vehicle with: Automatic gearbox, multifunction with radiofunction, with Tiptronic control, with trip computer, and cruise control, vehicle variant TT= 12141
A dialog box will confirm: code stored (with the new value) in memory.
If the coding operation fails, check if the code is valid.
Confirm with OK to exit the function.
Switch off the ignition for 60 seconds to store the new code.
Re-establish contact with the system. Read and check the fault codes and the new code.
Exit the function.