oil AUDI A4 1998 B5 / 1.G AWM Engine Motronic Injection System Servicing Workshop Manual
Page 2 of 79
disconnect connector from ignition coils and
from fuel injectors.
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Page 14 of 79
24-12
Repair Manual, 1.8 Liter 4
-Cyl. 5V Turbo Engine
Mechanical, Engine Code(s): AWM, Repair Group 21, Charge air system with turbocharger, checking
Repair Manual, 1.8 Liter 4
-Cyl. 5V Turbo Engine
Mechanical, Engine Code(s): AWM, Repair Group 26; Secondary Air Injection (AIR) system, checking
23 -
Ignition coil
Ignition coil -N-Ignition coil 2 -N128-Ignition coil 3 -N158-Ignition coil 4 -N163-Checking Page 28
-4
24 -
Wastegate bypass regulator valve -N75-
Checking:
25 -
Mass Air Flow (MAF) sensor -G70-
Checking Page 24
-59
26 -
Secondary Air Injection (AIR) pump
motor-V101-
Checking:
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Page 46 of 79
24-42
Fuel rail with fuel injectors, disassembling
and assembling
1 -
Fuel injector insert-3 Nm
use fluid securing material D 000 600 A2 to
insert.
2 -
O-ring Removing and installing Page 24
-45
Always replaceCoat with clean engine oil
3 -
Fuel injector Cylinder 1 Fuel Injector -N30-Cylinder 2 fuel injector -N31-Cylinder 3 fuel injector -N32-Cylinder 4 fuel injector -N33-Removing and installing Page 24
-45
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Page 47 of 79
24-43
4 -
O-ring
Removing and installing Page 24
-45
Always replaceCoat with clean engine oil
5 -
Fuel distributor
6 -
Fuel supply line Tighten to 25 Nm
7 -
Fuel return line
8 -
Harness connector for injectors4x
9 -
Socket head bolt- 10 Nm
10 -
Fuel pressure regulator
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Page 50 of 79
24-46
- Disconnect fuel distributor with injectors from
intake plenum and set aside in rear of engine
compartment on a clean cloth.
WARNING!
Fuel system is under pressure! Before
opening system, place rags around the
connection point. Then release pressure by
carefully loosening connection.
- Disengage retaining clip and remove fuel
injector.
Note:
Fuel lines must be removed before replacing fuel
distributor.
Installation is reverse of removal, noting the
following:
Remove O-rings at all opened connections.
(Never remove plastic cap from valve head
ro replace front O-ring - pry O-ring off over
plastic cap).
Lightly lubricate O-rings with clean engine
oil.
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jection s
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