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Removing and installing poly V-belt > < Cylinder block (pulley end)

A4 Mk3

Poly V-belt drive - exploded view
   
Poly V-belt drive - exploded view
1 - Poly V-belt
q   Check for wear
q   Before removing, mark direction of rotation with chalk or felt-tip pen
q   Removing and installing → Chapter
q   Do not kink
q   When installing, make sure it is properly seated on pulleys
2 - Bolt
q   Renew
q   20 Nm + turn 90° further
3 - Shim
q   Renew
4 - Cover for idler roller (right-side)
5 - Alternator
q   Removing and installing → Electrical system; Rep. gr.27
6 - Bolt
q   Tightening torque → Electrical system; Rep. gr.27
7 - Cover for idler roller
8 - Bolt
q   23 Nm
9 - Idler roller for poly V-belt
q   On bracket for alternator
q   Note installation position
10 - Bolt
q   Tightening torque and sequence → Fig.
11 - Bracket for alternator and idler roller
12 - Bolt
q   23 Nm
13 - Idler roller (right-side) for poly V-belt
q   Note installation position
14 - Cover for idler roller (left-side)
q   Depending on version → Electronic parts catalogue
15 - Bolt
q   Depending on version → Electronic parts catalogue
q   23 Nm
16 - Bolt
q   Tightening torque → Item
17 - Poly V-belt pulley for coolant pump
q   Removing and installing → Chapter „Removing and installing coolant pump“
q   Installation position: marking „vorne“ (front) faces in direction of travel
18 - Bolt
q   Tightening torque and sequence → Fig.
19 - Coolant pump
q   Removing and installing → Chapter
20 - Idler roller (left-side) for poly V-belt
q   Depending on version → Electronic parts catalogue
q   Removing and installing → Chapter
21 - Bolt
q   Depending on version → Electronic parts catalogue
q   23 Nm
22 - Bracket for idler roller
q   Depending on version → Electronic parts catalogue
23 - Bolt
q   Tightening torque → Rep. gr.48
24 - Power steering pump
q   Removing and installing → Rep. gr.48
25 - Poly V-belt pulley for power steering pump
q   Removing and installing → Rep. gr.48
q   Installation position: marking „vorne“ (front) faces in direction of travel
26 - Bolt
q   Tightening torque → Rep. gr.48
27 - Gasket
q   Renew
28 - Bracket for ancillaries
q   Removing and installing → Chapter
29 - Bolt
q   40 Nm
30 - Bolt
q   Tightening torque → Rep. gr.87
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 for ancillaries
33 - Bolt
q   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 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 to 4-.
–  Tighten bolts in the sequence -1 ... 4- to 40 Nm.
  A13-10936

Removing and installing poly V-belt > < Cylinder block (pulley end)