On the cost of an ABS Controller: www.germanimportedparts.com has the unit for a price of "$649.00" 560SEL '91. I jumped on that search immediately to get an amount to insure it for the return of mine from the cc lab. It does not say 'used' in the description but states the 'list' price is $2,400.00. The controller price might vary a lot based upon year and model,...but if it is simply the controller you need to replace check out the site. They are really easy to take off...and on, if you want me to tell you how. ha ha! TOO easy it seems. Good luck and thanks.