regulator.... you buy the regulator which has the brushes attached to it...no more than 25 dollars. as good as new. When I have bought my 300's (i have owned 3). I did these as routine maintainance the same way i changed out all the fluids. It gives me a baseline

contact ring... yes, an amateur could do it... that's what most of us here are.
I believe you need a long torx screwdriver... do a search for the size of the torx and instructions on how to do it.... i think the ring is about 60 dollars...

some have just cleaned the ring contacts and have had success...

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1989 300ce 129k
( facelifted front,updated tail lights, lowered suspension,bilstein sports, lorinser front spoiler, MOMO steering wheel, remus exhaust,stainless steel brake lines). (Gone)

1997 s320 154k (what a ride). Sold with 179k miles. Replaced with Hyundai Equus

1994 e320 Cabriolet 108k



1972 280se 4.5 153k Owned for 12 yrs, sorry I sold it


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