Turbocharger to exhaust manifold (polygon-head bold with threads and head
contact surface coated with VW high-temperature grease)....40 Nm (30 ft. lb)

Manifolds to cylinder head (nut or bolt)....25 Nm (18 ft. lb) (Same as for
non-turbo.)

Source:  Bentley's Rabbit/Jetta Diesel Service Manual 1977-83, Including Pickup
Truck and Turbo-Diesel

Mike Catlin
Davis, Calif.