Volkswagen Jetta / Bora: Electrical System Manual - part 37

Torque settings: alternator

10.1

General torque settings for all vehicles

Threaded connections

 

Torque settings

B+ wire to alternator

M8

15 Nm

Cable holder to alternator

M5

3,2 Nm

Voltage regulator to alternator

M4

2 Nm

Protective cap to alternator

M5

4.5 Nm

Poly V-belt pulley with freewheel to alternator M10

80 Nm

Poly V-belt pulley without freewheel to alternator M10

65 Nm

10.2

1.6 l injection engine and 2.0 l FSI en‐

gine

Caution

In order to avoid damage to cylinder block and compact brack‐

et, you must respect the tightening sequence for the compact

bracket.

10.2.1

Torque settings

Threaded connections

 

Torque settings

Alternator to compact

bracket

M8

23 Nm

Tensioning element to com‐

pact bracket

M8x50

23 Nm

Compact bracket to cylin‐

der block

M10x45 52 Nm

Jetta 2005 ➤ , Bora 2006 ➤

10. Torque settings: alternator    

145

Tightening sequence for compact brack‐

et, models with air conditioning system

Tightening sequence for compact bracket to cylinder block
Procedure
– Place compact bracket on cylinder block.

Note

Before tightening to specified torque setting, screw in all bolts by

hand.

– Tighten securing bolts of compact bracket in following se‐

quence:

A - Hexagon head collared bolt, M10x45, 52 Nm, locating hole
B - Hexagon head collared bolt, M10x45, 52 Nm
C - Hexagon head collared bolt, M10x45, 52 Nm
D - Hexagon head collared bolt, M10x45, 52 Nm
E - Hexagon head collared bolt, M10x45, 52 Nm
F - Hexagon head collared bolt, M10x45, 52 Nm

10.3

2.0 l FSI turbo engine

Caution

In order to avoid damage to cylinder block and compact brack‐

et, you must respect the tightening sequence for the compact

bracket.

10.3.1

Torque settings

Threaded connections

 

Torque settings

Alternator to compact

bracket

M8x90

23 Nm

Tensioning element to com‐

pact bracket

M8x90

23 Nm

Compact bracket to cylin‐

der block

M10x45 40 Nm

Air conditioner compressor

to compact bracket

M8x100 23 Nm

Jetta 2005 ➤ , Bora 2006 ➤

146

Tightening sequence for compact brack‐

et, models with air conditioning system

Tightening sequence for compact bracket to cylinder block
Procedure
– Place compact bracket on cylinder block.

Note

Before tightening to specified torque setting, screw in all bolts by

hand.

– Tighten securing bolts of compact bracket in following se‐

quence:

A - Cylinder collar screw, M10x45, 40 Nm, locating hole
B - Cylinder collar screw, M10x45, 40 Nm
C - Cylinder collar screw, M10x45, 40 Nm
D - Cylinder collar screw, M10x45, 40 Nm
E - Cylinder collar screw, M10x45, 40 Nm
F - Cylinder collar screw, M10x45, 40 Nm

10.4

1.9 l and 2.0 l TDI engine

Caution

In order to avoid damage to cylinder block and compact brack‐

et, you must respect the tightening sequence for the compact

bracket.

10.4.1

Torque settings

Threaded connections

 

Torque settings

Alternator to compact bracket

M8x90

20 Nm

Tensioning element to compact bracket

M8

20 Nm

Compact bracket to cylinder block

M10

40 Nm

Jetta 2005 ➤ , Bora 2006 ➤

10. Torque settings: alternator    

147

Tightening sequence for compact brack‐

et

Tightening sequence for compact bracket to cylinder block
Procedure
– Place compact bracket on cylinder block.

Note

♦

Observe dowel sleeve between compact bracket and cylinder

block.

♦

Before tightening to specified torque setting, screw in all bolts

by hand.

– Tighten securing bolts of compact bracket in following se‐

quence:

A - Hexagon head collared bolt, M10x65, 40 Nm
B - Hexagon head collared bolt, M10x45, 40 Nm
C - Hexagon head collared bolt, M10x45, 40 Nm
D - Hexagon head collared bolt, M10x45, 40 Nm
E - Hexagon head collared bolt, M10x65, 40 Nm
F - Hexagon head collared bolt, M10x65, with dowel sleeves 40

Nm

10.5

2.5 l injection engine

10.5.1

Torque settings

Threaded connections

 

Torque settings

Alternator to compact

bracket

M8x90

25 Nm

Tensioning element to com‐

pact bracket

M8x50

23 Nm

Compact bracket to cylin‐

der block

M10x45 52 Nm

Note

♦

Observe dowel sleeve between compact bracket and cylinder

block.

♦

For the compact bracket no tightening torque must be ob‐

served.

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