1998 E300D-T, 83,450 miles
W210, OM606.962, 722.6

Hope everyone has enjoyed autumn so far...some new MB projects, I'm sure!

I have been having this slight annoyance with my 1998...whenever I take a turn at higher speeds and sharper angles (i.e. leaving my neighborhood onto a 45-mph main road, u-turns, etc.), I hear a whine and motor-noise from the steering wheel. Upon further inspection, I noticed some liquid surrounding the reservoir (black cap next to fuel lines and fuel filter). I have never adjusted the PS fluid since it is not a maintenance item in the service booklet (but neither is the lifetime-fill transmission oil, right?!?!?).

Anyway, what could be causing this problem. Has anyone experienced a similar whine from the power steering system? Am I looking in the right place, and what can I do to correct the problem?

Thanks!!!

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1982 300D-T (sold)
1988 300E (sold)
1994 E320 Wagon (sold)
1995 E320
1998 E300D-T
1999 E3204M Wagon
2001 E320
2005 E320 CDI