audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Replacing voltage regulator - Bosch alternator > < 1.9l TDI engine - distributor-type injection pump
Electrical system
Removing and installing alternator
1.9l TDI engine - UIS
 
W00-1040

Special tools and workshop equipment required

  • ◆ Mandrel T10060

 
A10-0929

Removing

  • ‒ → Pull dipstick -1- out of guide tube.
  • ‒ Pull off engine cover -arrows-.
  • ‒ Re-insert dipstick in guide tube.
 
A10-0940
  • ‒ → Lay bare wires at air pipe.
  • ‒ Detach air pipe -arrows-.

Note:

Leave coolant hose -2- and fuel pipes -1- and -3- connected.

 
A13-0083

Note:

Before removing, mark direction of ribbed belt with chalk or felt-tipped pen. Running a used belt in the opposite direction could destroy it.

  • ‒ → Swivel tensioner in direction of arrow to slacken off ribbed belt.
 
N13-0620
  • ‒ → Use mandrel T10060 or offset Allen key to lock ribbed belt tensioner.
  • ‒ Detach ribbed belt.

 
A13-0361
  • ‒ → Unplug connector -2-.
  • ‒ Unscrew wire -1- and clamp.
 
A13-0375
  • ‒ → Screw out bolts -arrows- and detach alternator.

 
A13-0097

Installing

Install in reverse order, paying attention to the following:

  • ‒ To facilitate positioning of alternator, drive back bushings for retaining bolts slightly.
  • ‒ Make sure ribbed belt is properly positioned and correctly routed.
    • ‒ → Ribbed belt routing on vehicles with no air conditioner
 
A13-0098
    • ‒ → Ribbed belt routing on vehicles with air conditioner
  • Connect battery. Action to be taken .
  • Start engine and check belt running.

Tightening torques

Component

Nm

Alternator to bracket

25

Terminal 30/B+ to alternator

16

Replacing voltage regulator - Bosch alternator > < 1.9l TDI engine - distributor-type injection pump