W126: fan lubrication point
 

Where is the lubrication point for the main fan? I was looking at the shaft housing last Saturday, and there is a small hole on top of the shaft housing about 2-3 inches behind the fan. Is this the lubrication point?

And what type of lube should I use?

Robert;
all 126 cars I am familiar with have viscous fan clutches. They do not require lubrication.
The hole yor're seeing two inches back is probably a vent on the waterpump, this also requires no lube.
It would pay you to buy a 126 CDrom.
MF