Hello, all. A '97 S420 / M119.981 here.

I'm trying to get the 8mm allen head bolt out of the center of the fan clutch. Naturally, the bolt is in there pretty tight and I'm having a heck of a time trying to hold the pulley so I can generate enough torque to finally break the bolt loose. Alldata mentions a special tool which, of course, I don't have.

I tried wedging a screw driver between the shaft and the bolts on the pulley but all I managed to do was bend the screw driver. Does anyone have a trick to getting that bolt out without the special tool? Otherwise I only see 2 options:

1. Remove the radiator, hold the pulley with the above mentioned screwdriver trick, and try and remove it with an impact wrench.

2. Button it back up and take it to the dealer/mechanic and have them do it.

I'd appreciate any tips.

__________________
"It's not about how fast you can go, but how well you can go fast."

Bob in Richmond

'97 S320 (LWB), Ruby Red Metallic, 73k miles
'97 S420V, Smoke Silver Metallic, 155k miles