This is a compendium of existing posts which may help one understand, check and quickly fix a fading or inoperative cruise system which may simply be due to defective pedal vacuum vent valve operation:
These two items are so essential and simple that it may be they are the easiest, cheapest and best place to start.
Dave's C4 / URS illustrations:
https://www.s2forum.com/forum/techni...ches#post65892
A80Avant's:
https://www.s2forum.com/forum/techni...84#post2020884
Mine:
https://www.audiworld.com/forums/aud.../#post24058944
Simmsled's:
https://www.audiworld.com/forums/aud.../#post23748138
These two items are so essential and simple that it may be they are the easiest, cheapest and best place to start.
Dave's C4 / URS illustrations:
https://www.s2forum.com/forum/techni...ches#post65892
A80Avant's:
https://www.s2forum.com/forum/techni...84#post2020884
Mine:
https://www.audiworld.com/forums/aud.../#post24058944
Simmsled's:
https://www.audiworld.com/forums/aud.../#post23748138
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