Audi Q3: Vehicle Diagnosis, Testing and Information Systems
	
						
			 WARNING
 
  WARNING
	- During road tests using a vehicle diagnostic and 
information system, there is the hazard of extreme to 
lethal injuries!
- If vehicle diagnostic and information system is 
deposited in the action area of an airbag during a road 
test, here is the hazard of extreme to lethal injuries 
in the event the airbag deploys!
- During road tests, have a person sitting in the rear 
seat to operate the vehicle diagnostic and information 
system.
Audi TT and Audi R8
 WARNING
 
  WARNING
	- During road tests using a Vehicle Diagnostic Tester, 
there is the hazard of extreme to lethal injuries!
- If vehicle diagnostic and information system is 
deposited in the action area of an airbag during a road 
test, here is the hazard of extreme to lethal injuries 
in the event the airbag deploys!
- During road tests, have a person sitting in the 
front passenger seat in the rearmost position to operate 
the Vehicle Diagnostic Tester.
- The Vehicle Diagnostic Tester-1- 
must lie flat on the passenger's legs and be operated by 
that person, as shown in the illustration.
- Connect the Vehicle Diagnostic Tester. Refer to
→ Chapter "Vehicle Diagnostic Tester, Connecting".

Vehicle Diagnostic Tester, Connecting
Special tools and workshop equipment 
required
	- Vehicle Diagnostic Tester and diagnostic cable
Procedure
- Engage the parking brake or operate the electromechanical 
parking brake.
- Shift the shifter lever into neutral or place the selector 
lever in the "P" position.
- Turn off the ignition and connect the Vehicle Diagnostic 
Tester to the Data Link Connector (DLC) with the diagnostic 
cable -arrow-.
- When using the Remote Diagnosis Head -VAS5054A- or the 
Diagnosis Interface -VAS5055- pay attention to the Operating 
Instructions.
- Turn on the ignition.
- Turn off all electrical consumers.
 Note
  
Note
If a error message appears on the screen of the Vehicle 
Diagnostic Tester. Refer to the Operating Instructions.

READ NEXT:
	
    
  Caution
When disconnecting and connecting battery, the 
procedure must be followed as described in the Repair 
Manual.
 
  WARNING
Some tools are supplied with a tool safety clip,
   
   
 
	
   Wiring Harness Repair Set -VAS1978-
The Wiring Harness Repair Set -VAS1978- makes optimal repair 
quality possible in the realm of vehicle electronics. Using the 
tools, repairs affecting harness c
   
   
 
	
   Crimping Pliers with Insert
The Crimping Pliers without Insert -VAS1978/1- with Crimping 
Pliers - Insert 2 -VAS1978/2- is a component of the Wiring 
Harness Repair Set -VAS1978- and is used to cri
   
   
 
   SEE MORE:
	
   Overview - E-box, Wire Junction, Fuse Panel, Suppressor
1 - Nut
	9 Nm
2 - Wiring Harness
3 - Nut
	4.5 Nm
4 - Suppressor -C24-
	Removing and installing. Refer to 
→ Chapter "Suppressor -C24-, Removing and Installing".
5 - 
   
   
 
	
   Component Location Overview - Heating
Component Location Overview - Components Outside of Passenger 
Compartment
  
Note
	At the start of production, only one Air Conditioning (A/C) 
system was offered for the Audi Q3.
	From MY 2014 as a running change, a heater without an A/C 
system