I couldn't find a torque value either, so I reverted to the grunt system. Settled on a 2 grunt torque if I remember. 5K miles since installation and still tight.
'73 280SEL 4.5 (9/72)- RIP
Only 8,173 units built from 5/71 thru 11/72
'02 CLK320 Cabriolet - wifey's mid-life crisis
2012 VW Jetta Sportwagon TDI...at least its a diesel
Non illegitemae carborundum.