Check the # on your MAS....if you do need one, This one is priced right $20. I know the description does not match the item, but neither did the one I received from him today for my SL. I did get a good one, and what was pictured.....Good Luck and keep up posted.....gene2
http://cgi.ebay.com/ebaymotors/MERCEDES-W124-W126-W202-MAS-RELAY-FUEL-AIR-A-C-COMPUTER_W0QQcmdZViewItemQQhashZitem414c6bbd73QQitemZ280455003507QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5 fAccessories