To make all functions work correctly, the control unit must be coded according to the corresponding equipment.
Note:
A 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 | Standard steering wheel without multifunction |
1 X X X | 3-spoke steering wheel (sport steering wheel) |
2 X X X | Multifunction with scrollfunction |
3 X X X | Multifunction with radio/phonefunction |
4 X X X | Multifunction with radio/phonefunction (with voicecontrol) or mobil phone preparation or North America telematik |
5 X X X | Multifunction with radio/voicecontrol (without phone) |
X 0 X X | Without Tiptronic control and steering wheel heating function |
X 1 X X | With Tiptronic control, without steering wheel heating function |
X 2 X X | With steering wheel heating function, without Tiptronic control |
X 3 X X | With Tiptronic control and steering wheel heating function |
X X 0 X | Without trip computer, cruise control and adaptive cruise control |
X X 1 X | With trip computer, without cruise control and adaptive cruise control |
X X 2 X | With cruise control, without trip computer and adaptive cruise control |
X X 3 X | With adaptive cruise control, without trip computer and cruise control |
X X 4 X | With trip computer and cruise control, without adaptive cruise control |
X X 5 X | With trip computer and adaptive cruise control, without cruise control |
X X X 1 | Limousine |
X X X 2 | Avant (with rear window wiper) |
Vehicle with: multifunction (with scrollfunction), trip computer, cruise control and Avant = 2042
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.