I have to refill it every.. 4-6 weeks, and it's empty each time I do. I cleaned off the engine, and have done 500 miles or so since. Looking at the underneath, there is a little of the red fluid at the bottom of the power steering pump, but it's certainly not poring or pumping out.

In a new pump costly? Are there any replaceable seals?

Russ

__________________
190E's:
2.5-16v 1990 90,000m Astral Silver
2.0E 8v 1986 107,000m Black 2nd owner
http://www.maylane.demon.co.uk/190esmall.jpghttp://www.maylane.demon.co.uk/190esmall2.jpg

repair kit

http://catalog.eautopartscatalog.com/mercedesshop/sophio/quote.jsp?clientid=mercedesshop&cookieid=1CL0O6GWD1D30VCAWT&baseurl=http://catalog.peachparts.com/&partner=mercedesshop&year=1986&product=M2040-62843&application=000253332

Pump is 200-300+ US$ I got one for an 86 300E for $40.00 US at a salvage yard.


first run engine and watch pump to see if you can spot it
If you can have someone turn wheel back and forth that will accentuate a leak.

if you did not remove and replace it recently its most likley a front seal (lower left corner of the picture in the above repair kit link) where the shaft from the pully enters the pump boby.

best guess
best of luck
marty

__________________
-Marty

1986 300E 220,000 miles+ transmission impossible
(Now waiting under a bridge in order to become one)

Reading your M103 duty cycle:
http://www.peachparts.com/shopforum/831799-post13.html
http://www.peachparts.com/shopforum/831807-post14.html