All of a sudden, the cruise in my 300D has stopped working. I also noticed that the intermittent wipers stopped working as well. The wipers will work if I jiggle the turn signal stalk.

Could the cause of this be a switch in the steering column? Is there a DIY troubleshooting procedure for this?

TIA,
Phil

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1985 Mercedes 300D 209K miles

GDL has a troubleshooting page:

Test Procedures - Table of Contents

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Sam

84 300SD 350K+ miles ( Blue Belle )

Thanks for that! You have no idea...

"The system gets a critical ground through the brake light bulb filaments. If both bulbs are burned out or there is not proper ground here the system will not work"

Guess what I just replaced today? Both burned out brake light bulbs.

Will test the cruise on my way home!

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1985 Mercedes 300D 209K miles

Cruise is working again. Thanks for the help!

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1985 Mercedes 300D 209K miles