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Removing and installing poly V-belt > < Moving lock carrier into service position

A4 Mk2

Poly V-belt drive - exploded view
   
Poly V-belt drive - exploded view
1 - Poly V-belt
q   Before removing, mark direction of rotation with chalk or felt-tip pen. If the belt runs in the opposite direction when it is refitted, this can cause breakage.
q   Removing and installing → Chapter
q   Check for wear
q   When installing, make sure it is properly seated on pulleys.
2 - 20 Nm + 90°
q   Property class 10.9
q   Renew
3 - Shim
q   Renew
q   Must be fitted on all vehicles, even if no shim was fitted previously
4 - Cover for idler roller
5 - Alternator
q   Removing and installing → Rep. gr.27
q   To facilitate attachment of alternator, knock back threaded bushes for alternator securing bolts slightly
6 - 23 Nm
7 - Cover for idler roller
8 - 23 Nm
q   Property class 10.9
9 - Idler roller for poly V-belt
q   Note installation position
10 - Bolt
q   Tightening torque and sequence → Fig.
11 - Bracket for alternator and idler roller
12 - 23 Nm
q   Property class 10.9
13 - Idler roller for poly V-belt
q   Note installation position
14 - Cover for idler roller
q   On vehicles with additional idler roller
15 - 23 Nm
q   Property class 10.9
q   On vehicles with additional idler roller
16 - 23 Nm
17 - Poly V-belt pulley for coolant pump
q   Counterhold with pin wrench -3212- when loosening and tightening → Fig..
q   Installation position: marking „vorne“ (front) faces in direction of travel.
18 - 9 Nm
19 - Coolant pump
q   Removing and installing → Chapter
20 - Idler roller for poly V-belt
q   Only applicable on new versions:
q   Removing and installing → Chapter
21 - 23 Nm
q   On vehicles with additional idler roller
22 - Bracket for idler roller
q   On vehicles with additional idler roller
23 - 23 Nm
24 - Power steering pump
q   Removing and installing → Rep. gr.48
25 - Poly V-belt pulley for power steering pump
q   Counterhold with pin wrench -3212- when loosening and tightening → Fig..
q   Installation position: marking „vorne“ (front) faces in direction of travel.
26 - 22 Nm
27 - Gasket
q   Renew
28 - Bracket for ancillaries
29 - 40 Nm
30 - 25 Nm
31 - Air conditioner compressor
q   Do not unscrew or disconnect refrigerant hoses or pipes.
q   Removing and installing → Rep. gr.87
q   When installing check dowel sleeves -item 32-
32 - Dowel sleeve
q   2x
q   Check for correct seating in bracket
33 - 23 Nm
34 - Poly V-belt tensioner
  Caution
Depending on the vehicle version, an M10 or an M11 thread may have been used for the securing thread in the crankcase for the tensioner. It is very important that the correct bolt and tensioner to the crankcase is used. → Electronic parts catalogue
q   Removing and installing → Chapter
35 - Bolt
  Caution
Different threads in crankcase.
Before installation, check whether thread is M10 or M11 version.
Use appropriate bolt size. Risk of damage to engine.
It is very important that the correct bolt and tensioner to the crankcase is used. → Electronic parts catalogue
q   Bolt with M10 thread: 50 Nm + turn 90° further
q   Bolt with M11 thread: 60 Nm + turn 90° further
q   Renew
36 - Vibration damper
q   With poly V-belt pulley
q   Removing and installing → Chapter

   
Bracket for alternator and idler roller - tightening torque and sequence
–  Fit bolts in the sequence -1 ... 4-.
–  Tighten bolts in the sequence -1 ... 4- to 40 Nm.
  A13-10936
Loosening poly V-belt pulley for coolant pump
l  Poly V-belt removed.
–  Counterhold using pin wrench -3212- when loosening bolts -arrows- on poly V-belt pulley for coolant pump.
  A13-0879
Loosening poly V-belt pulley for power steering pump
l  Poly V-belt removed.
–  Counterhold using pin wrench -3212- when loosening bolts -arrows- on poly V-belt pulley for power steering pump.
  A13-0880

Removing and installing poly V-belt > < Moving lock carrier into service position