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Program Eligibility

Diagnostic Testing

Warranty Keys

After running the Specification/Actual test, check ElsaPro for any Warranty Keys indicating aftermarket modifications. Should any exist, stop and notify dealer management immediately as the vehicle is ineligible for certification.

  • Any VIN with a Warranty Key that indicates modifications, tuning or denotes restricted coverage is not eligible to be enrolled in the Audi Certified pre-owned program
  • Additionally, vehicles not displaying an ineligible key at the time of enrollment that are subsequently flagged are subject to removal from the Audi Certified pre-owned program

Ineligible Warranty Keys

Warranty Key Description
T10 Motor Tuning Engine altered
T23 Chip Tuning ECM chipped; affects powertrain
TD1 Vehicle Check Code Unauthorized ECM modification (tuning)
T26 Exhaust Tuned Non-OEM exhaust on vehicle
T40 Running Gear Tuned Differential changed, gear ratio altered, suspension changed, wheels non-OEM, brakes/ rotors modified
T50 Changed Vehicle Body Outside panels changed and/or altered
T68 Changed Interior Non-OEM interior panels and/or trim
T90 Changed Instrument Non-OEM cluster, added instrumentation
T94 Changed Lighting Changed lighting
UST Vehicle totaled/without warranty All systems
TG1 Modification to gear box control unit
TE1 Modification to power electronics
TB1 Suspected tuning with tuning box
TXD Vehicle Check Code Unauthorized ECM modification (tuning)

Initial Warranty Key Check: Pre-work item
1. Login to ElsaPro, click on “Vehicle Specific Information”
2. Enter the VIN, click OK
3. Click on “Vehicle Data” and review the list of Warranty Keys displayed
ELSA 4
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