Vcds 1570 Mhh Auto Page 1 -

Unlocking VCDS 15.7.0: The MHHAuto Phenomenon – What You Need to Know (Page 1)

Based on the collective wisdom of the forums, here are the standard repair paths:

Bottom line

  • Check Immobilizer Module: Access the Immobilizer module (Address 25 or 17 depending on the car). Look for fault codes there as well. You may see "Incorrect Key Programming" or "Communication Fault."
  • The "Spare Key" Test: If you have a second key, try it. If the second key works, your primary key is dead. If neither key works, the problem is in the car (wiring or module).