sensor AUDI A4 1999 B5 / 1.G 01A Transmission Remove And Install Workshop Manual

34-19

4-cylinder engine

- Disconnect wires/and harness connectors as follows:
1 - At solenoid valve for wastegate bypass regulator valve -N75-
2 - At Evaporative Emission (EVAP) canister purge regulator valve -N80-
3 - At power output stage -N122-
4 - At Mass Air Flow (MAF) sensor -G70-
- Disconnect hoses and remove air cleaner housing (arrows).
- Remove coolant expansion tank and lay to one side.

Repair Manual, Engine Mechanical, Repair Group 26
Note:
Do not bend flex pipe on front exhaust pipe more than 10 . - Remove harness connector for Heated Oxygen Sensor (HO2S) (arrow)
and move wiring clear.
- Remove nuts securing turbocharger to front exhaust pipe.
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34-20

6-cylinder engine

All models - Remove intake air duct -A- (arrows)
- Unbolt coolant expansion tank -B- (arrows) and lay to one side.
- Remove Heated Oxygen Sensors (HO2S) on left and right exhaust
pipes using 3337 ring spanner 7-piece set and move clear to side.
- Remove engine/transmission mounting bolts accessible from above.

- Remove noise insulation panel (arrows).
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34-23

All models

Note:
Take care not to damage protective coating on drive axles. - Remove engine speed (RPM) sensor -G28- on left of transmission
(arrow) and move clear to side.
- Disconnect drive axles from flange shafts and rest them on suspension
links.

- Disconnect harness connector off Vehicle Speed Sensor -VSS- (arrow -
A-).
- Disconnect back-up light connector (multi-function sensor) (arrow -B-).
- Disconnect all other electrical connections and ground wires from
transmission and from engine/transmission mounting bolts.
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34-37

Component Nm ft
lb
Drive axle to flange shaft M8 40 30
Drive axle to flange shaft M10 80 59
Engine speed sensor -G28- 10 7
Clutch slave cylinder to transmission 20 15
Heat shields over drive axles on
transmission 23 17
Shift rod to transmission 23 17
Pivot rod to transmission 40 30
Driveshaft to transmission 55 41
Heat shield for driveshaft to cover of
Torsen differential 25 18
Three Way Catalytic Converter (TWC)
to mounts 25 18
Front exhaust pipe to turbocharger or
exhaust manifold 25 18
Clamp for exhaust pipe 40 30
Bracket for noise insulation panel to
body 25 18
Pa
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11/19/2002 htt
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play?action=Goto&t
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pair&id=AUDI.B5.TM02.34.2