Take out the steering wheel (remove the center star on a NON airbagged wheel and unscrew the loctite-d Allen (sp?) bolt). Remove the lower dash panel to get to the connector of the cruise control switch (at the left side of the steering column). Remove the cruise control switch (and probably the combined switch for indicator and windscreen washer to get out the wire harness with connector).

good luck & greetingz,

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1990 300SL-24
1993 C250D with a minor 600+k kilometer
www.MBenzNL.com(the Netherlands)