A few volks have  asked if I could post the details of my Mercedes wheels
on the list.

Here goes.

I have Michelein XW4  215/75 15" tyres

The wheels are stamped thus:
49 32 96
ET37
6 1/2 J x 15H2
Lenners 2150246  (In cursive text,maybe Lemmers or lemmez)

Heres the good bit
preceeded by a little Mercedes emblem is  (emblem)2104000002

I am not sure to where to reference any offset measurement from, or where
to measure to, but........ With a straightedge across the outer most edges
of the rim, I measure 47mm to the centre face of the rim.

I hope this helps , they are a great fit and look great.

Cheers Mark