Replied by Susan on Nov 30, 2018
Have a nice day
You need vag obd helper in following case:
When to use VAG OBD helper?
1. For the VAG vehicle with MQB immo, if the immo data can't be read out, you can try to use VAG OBD helper, but can work for adding new keys (Take Johnson Controls key adding for example)
2. If A4L Q5 can't be directly read out BCM2 data, and display the data length error, VAG OBD helper can be used to calculate BCM2 data.
3.If you get all keys lost for any of 2014 A6 A7 A8 Touareg, PHIDEON with 5th immo system, you can use VAG OBD helper to online calculate BCM2 data, then working together with VVDI2, APPRO to program key.
Note: Before using VAG OBD helper, please make sure the vehicle info is not tampered and vehicle status is legal, otherwise the immo data can't be calculated.
If you lose all keys, vvdi2 can not read out immo data from vw 4th, you need this tool for help