Ahh - the bane of the Mercedes.

I had the same issue when I gave my wife my '95 E320.  I have a rule - no
drinking in the car - so not having cup holders was never a big deal.  She
needed them, so I opted for "the mugger" - a screw on unit that I found on
eBay. But they're relatively cheap.  For long-term use consider springing
for the expensive units from the dealer.  I'd also stay away from the cup
holders that hang on the AC vent as they can break the vent.

I found some that if I remember are supposed to have a tab inserted down the
window. You can take this tab and slide it up the side of the console
instead.

Chris

Have you looked at your local autoparts store?  I saw one at this one
local to me (called AutoZone), and they had these cupholder dealies that
slide in between the seat and the console, so the two cupholders hang
over either the seat or the console (depending on how it's oriented).
Similar things are selling on ebay for $12, but at AutoZone they were
only $8.

-tom!

--

This can be solved with a DIY project if the center console of her car
is like my '87 300 SDL. I have an oak two hole cup holder. The cup
holes are approximately 3.5 inches in diameter, with a 3\8s radius
bevel. The front of the holder has a spacer block about 1.5 in that
rests in the well of the console. The rear  has no spacer, rests on the
floor of the well. Finish is a dark Mediterranean Oak stain with two
coats of poly urethane. Over all it is similar to single units that I
see in old The Star (MBCA) Magazine advertisements.