spark plugs AUDI A3 1999 8L / 1.G AEB ATW Engines Cylinder Head Remove And Install Workshop Manual
Page 32 of 35
15-30
Compression, checking
Special tools and equipment
VAG1381 or VAG1763 compression tester
3122B spark plug removal tool
Test condition
Minimum engine oil temperature: 30 C (86
F)
Test procedure
- Remove engine covers.
- Switch ignition off and remove harness
connectors to ignition coils.
- Unbolt ignition coils (arrows).
- Remove all harness connectors to fuel injectors.
- Using 3122B spark plug removal tool, remove all spark plugs.
- Open throttle to Wide Open Throttle (WOT) position.
- Using VAG1381 or VAG1763 compression tester, test engine
compression.
Pa
ge 32 of 35 C
ylinder head, removin
g and installin
g
11/18/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE02.15.2
Page 34 of 35
15-31
- Activate starter until no further pressure
increases are indicated by VAG1381 or
VAG1763 compression tester.
Compression pressure
Engine code
New
Wear limit
AEB 10.0-13.0 bar
(145-188.5 psi) 7.0 bar
(101.5 psi)
Permissible difference between all cylinders: 3
bar (43 psi)
- Install spark plugs and ignition coils.
- Check DTC memory.
Repair Manual, 1.8 Liter 5V Turbo Fuel
Injection & Ignition, Repair Group 01
Note:
Diagnostic Trouble Codes (DTCs) are stored
when harness connectors are disconnected.
After testing, check DTC memory and erase.
Pa
ge 34 of 35 C
ylinder head, removin
g and installin
g
11/18/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE02.15.2
Page 35 of 35
Tightening torques
Component
Tightening
torques
Spark plugs into cylinder
head 30 Nm (22 ft lb)
Ignition coils to cylinder head
cover 10 Nm (7 ft lb)
Pa
ge 35 of 35 C
ylinder head, removin
g and installin
g
11/18/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE02.15.2