The clutch on my 91 90Q 20V seems to have given up the ghost, I can see the clutch twitch when I change from ECON to AUTO. The coil measures 3.1 ohms and I see 10.9V across the coil in AUTO mode. Has anyone had any experience with this beast, is this a common failure? Bentley suggests the special tools for clutch removal (not to mention removing the bumper.) Thanks Benjy