Odd as in 'not an even number.' Just my limited Benz wrenching showing through I guess (have torn multiple Miata's down to the bare bones and built 'em back up again, and I can assure you there is not a single allen head cap screw anywhere in that play).

So I guess it's off to the FLAP place to try and procure a 7mm allen driver. Will (carefully to keep the PB Blaster off the brakes!) soak the little buggers tonight after we get home, and give it a run tomorrow.

Thanks again folks - your knowledge and willingness to help is greatly appreciated.

__________________
1961 220b: first project car - sold.
2000 CLK 430: first modern Benz - sold.
2001 CLK 55: OMG the torque!!! - sold
1972 280SE 4.5: Baby Gustav
1991 300TE 4Matic: Gretel the Snow Bunny - sold
1978 300SD: Katz the Free Man - given away
1980 Redhead: Darling Wife