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Audi ur-quattro differential lock switch hoses

This is a handheld-friendly page.

There are clear colour schematics available on Jim Hasletine's page. Numbering is from the knob backwards

1981-1982 single-position switch

1. Green pipe - front and rear engage
2. White pipe - vacuum feed
3. Red pipe - front and rear disengage

1983-1985 two-position pull switch

1. Yellow - rear engage
2. Green - centre engage
3. White - vacuum feed
4. Blue - rear disengage
5. Red - centre disengage

1986 onwards rotary switch

• Yellow - rear engage
• Green - centre engage
• White - vacuum feed
• Blue - rear disengage
• Red - centre disengage

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