Volkswagen Golf Service & Repair Manual: Inlet and exhaust valves

Removing and installing valve stem seals (cylinder head removed)

Special tools and workshop equipment required     Removal and installation device for valve cotters -VAS ...

Checking valve guides

Special tools and workshop equipment required     Universal dial gauge bracket -VW 387- &nb ...

Other materials:

Removing and installing coolant pipes at heat exchanger (Denso)
  Note There are different designs and makes of heater and air conditioning unit. The individual components of the various heaters and air conditioning units are similar but not identical (distinguishing features → Chapter). The c ...

Cleaning injectors
Special tools and workshop equipment required Ultrasonic cleaner -VAS 6418- Mounting plate for injection modules -VAS 6418/1- Cleaning fluid → Electronic Parts Catalogu ...

Charging battery in maintenance mode with battery charger -VAS 5095 A-
  WARNING Danger of injury! Observe warning notices and safety regulations → Chapter!   WARNING It is not permissible ...