AUDI A6 1997 C5 / 2.G ATQ Engine Ignition System Checking Workshop Manual

AUDI A6 1997 C5 / 2.G ATQ Engine Ignition System Checking Workshop Manual A6 1997 C5 / 2.G AUDI AUDI https://www.carmanualsonline.info/img/6/1062/w960_1062-0.png AUDI A6 1997 C5 / 2.G ATQ Engine Ignition System Checking Workshop Manual

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AUDI A6 1997 C5 / 2.G ATQ Engine Ignition System Checking Workshop Manual 28-1
 
     
Ignition system, checking 
     
General notes on ignition system
 
     
The battery should only be disconnected and 
reconnected when the ignition is turned off, 
since otherwise the En

Page 2 of 65

AUDI A6 1997 C5 / 2.G ATQ Engine Ignition System Checking Workshop Manual 28-2
      
Safety precautions
 
      To reduce the risk of personal injury and/or 
damage to the fuel injection and ignition system, 
always observe the following:  
     
Do not touch or pull off i

Page 3 of 65

AUDI A6 1997 C5 / 2.G ATQ Engine Ignition System Checking Workshop Manual      
The battery should only be disconnected and 
reconnected when the ignition is turned off, 
since otherwise the Engine Control Module 
(ECM) can be damaged. 
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Page 4 of 65

AUDI A6 1997 C5 / 2.G ATQ Engine Ignition System Checking Workshop Manual 28-3
 Technical data, ignition
 
Engine identification  
ATQ (2.8 L / 5V/ 147 kW-engine)  
Idle speed  
Engine speed cannot be adjusted, it is regulated by idle stabilization  720 to 820 RPM (front wh

Page 5 of 65

AUDI A6 1997 C5 / 2.G ATQ Engine Ignition System Checking Workshop Manual 28-4
 
  
Ignition system components, removing 
and installing
 
1 - 
Spark plug, 30 Nm 
Remove and install with 3122 B
2 - 
Spark plug connectors with ignition wires 
3 - 
Spacer sleeve 
4 - 
Rubber

Page 6 of 65

AUDI A6 1997 C5 / 2.G ATQ Engine Ignition System Checking Workshop Manual 28-5
 
  
7 - 
5-pin harness connector 
Black
8 - 
3-pin harness connector Terminals are gold-plated
9 - 
20 Nm Tightening torque affects function of Knock 
Sensor (KS) 
10 - 
Knock Sensor (KS) 2 -G66

Page 7 of 65

AUDI A6 1997 C5 / 2.G ATQ Engine Ignition System Checking Workshop Manual 28-6
 
  
13 - 
Camshaft Position (CMP) sensor 2 -G40- 
Bank 2
14 - 
25 Nm 
15 - 
Washer Conical
16 - 
Face plate for Camshaft Position (CMP) sensornote position when installing
17 - 
3-pin harness co

Page 8 of 65

AUDI A6 1997 C5 / 2.G ATQ Engine Ignition System Checking Workshop Manual 28-7
 
  
Ignition coils, checking
 
Special Tools and Equipment  
 
VAG1526A
 VAG1527B
 VAG1594A
 VAG1598/31
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11/23/2002 htt
p://127.0.0.1:8080/audi/servlet/

Page 9 of 65

AUDI A6 1997 C5 / 2.G ATQ Engine Ignition System Checking Workshop Manual 28-8
       Component location   Overview of Component 
Locations, page   Page 24
-5   
     
Notes:  
     
Ignition coils and power output stage are a 
common part. 
     Primary resistance of ignit

Page 10 of 65

AUDI A6 1997 C5 / 2.G ATQ Engine Ignition System Checking Workshop Manual -  If the specified values are not reached, disconnect ignition wires from 
ignition coils and perform a separate resistance measurement at the 
ignition wires and at the ignition coils. 
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