Useful VAG-COM codes

Common operations

ANTI HIJACK

The anti hijack is a superb feature....

[select]

[46 - Cent. Conv.] (35 - Cent. Locking for manual window cars)

[Adaptation - 10]

Channel (03..08)

Adaptation Value (1 = on, 0 = off)

[save]

Channel 03 Auto Lock

Channel 04 Auto Unlock

Channel 05 Unlock, horn sounds

Channel 06 Lock, horn sounds

Channel 07 Unlock, turn signals flash

Channel 08 Lock, turn signals flash

Remember to do a scan of the module on each one to find out what each channel is, prior to making any changes as some cars beep is channel 7, not channel 6.

SINGLE DOOR UNLOCK

[select]

[46 - Cent. Conv.] (35 - Cent. Locking for manual window cars)

[Recode - 07]

Write down the existing coding for future reference.

Enter 5-digit code from below

[Do It!]

Look at the existing Soft. Coding. If you have selective unlocking (press the unlock button on the remote once to open the driver's door, twice to open all the doors) the last digit of your coding should be an even number. To make all doors unlock, add 1 to the coding.

So, if you have a 2-door 2002 GTI that is coded for selective unlocking (00064) add one to make it 00065 so that all doors unlock with one press of the unlock button.

POWER STEERING

[select]

[44 - Steering Assist] (from Chassis tab)

[Recode - 07]

Take note of the value which is in the form 0001x1 where x is the weight setting, eg 000121

If x is set to 1, it will be very light, if it is set to 5 it will be heavy

Replace the number with the required weight, eg 000151

[Do It!]

HEADLAMP ADJUSTMENT: (Xenon only)

[select]

[55 - H. Light Range]

[basic Settings - 04]

Set channel to "000"

[Do It!]

Wait about 20 seconds

Manually adjust headlamps

[Done, Go back]

EGR DISABLING

With the engine warmed up and running at idle in neutral with all major accessories such as air conditioning turned off, connect the scan tool cable and start the scan tool software.

[01 - Engine]

[Login - 11] and enter 12233 as the access code

[Adaptation] and go to block 3.

Give the accelerator pedal a quick "blip" to ensure that the EGR remains turned on for the next minute while you perform the following steps.

Note that the display shows a default adaptation value of 32768 and shows approximately 250 +/- 20 mg/stroke of air intake volume.

If all is well, enter 33768 as the new adaptation value, and select "test". Note that the displayed air intake volume changes, usually to about 370 mg/stroke. The specification limit is 370 mg/stroke, so if you want to remain within OEM shop manual specifications for emission control reasons, you might have to enter a number slightly smaller than 33768. (If you don't care about road-legal NOx emission limits then leave it at 33768. [Depending on the usage cycle, NOx at this setting can be increased by as much as 40%]) If all is well and you have a seting that you are happy with which results in an intake air volume of 370 mg/stroke or just a hair less, enter [save]. The values aren't exactly the same, but when you enter the value 33768, the ECU will automatically adapt it. In my case it was something like 33628. 370mg/stroke is what your looking for.

Discussion of this FAQ can be found here