Blobcat said:You may have a leak from the steering rack. This fluid reservoir also supplies the self levelling rear suspension if your car has this fitted. If so the MB power steering fluid is recommended.
andy_k said:are you sure?
my self levelling suspension has it's own independent reservoir and both need different fluids
check with your dealer before filling up as some of the oil requirements are very specific
the spec sheet and Haynes manual I have for the W124 lists
power steering - Mercedes Benz Lenkgetriebeol (00 989 88 03)
self levelling - Mercedes Benz Hydraulikol (000989 91 03)
HTH
Andy
ALAN@AUTOCLINIC said:"power steering - Mercedes Benz Lenkgetriebeol (00 989 88 03)"
you can also use "dexron 2" as most of us have for years and years, mineral oil is an expensive "gimmick", believe me
blobcat, was it the cbr or the bmw you were out on?