Audi Q7 (4M) 2016-2026 Workshop Manual

 Malfunction Determination if Cooling Output of Front A/C System is OK but Required Values not Achieved in Rear

  Note Depending on vehicle equipment, there are different versions of the A/C system for the Audi Q7. Make sure to use the correct version and pay attention to the allocation of different components. Refer to → Chapter "A/C System Versions" and Parts Catalog. Perform only on vehicl

 On Board Diagnostic Systems

On Board Diagnostics, or OBD, is an automotive term referring to a vehicle's self-diagnostic and reporting capability. OBD systems give the vehicle owner or repair technician access to the status of the various vehicle sub-systems. Modern OBD implementations use a standardized digital communica