Doing 75000 service now. Need help with crank lock tool installation.

[hahnmgh63]

Attachment 15556
Your right on both accounts. Did a timing belt on my girlfriends A8 4.2 this summer and it was a hex head. I just checked the RS6 and it is an Allen. They tend to be very tight so I used a quality Snapon socket and used a touch of Anti-seize when I put it back in since it's steel in Aluminum. Here is a pic.

[Zorb]

Attachment 15556
Your right on both accounts. Did a timing belt on my girlfriends A8 4.2 this summer and it was a hex head. I just checked the RS6 and it is an Allen. They tend to be very tight so I used a quality Snapon socket and used a touch of Anti-seize when I put it back in since it's steel in Aluminum. Here is a pic.

That's the one I found. I'll try to figure it out now.