4000CS Quattro L5-2144cc 2.14L SOHC (JT) (1986)
![background image](/audi/4000cs_quattro/l5-2144cc_2.14l_sohc_(jt)/Page-1701001.png)
Distributor Advance Unit: Description and Operation
The distributor uses both mechanical and vacuum operated spark control devices. The vacuum spark control device incorporates a vacuum retard
function as well as a vacuum advance. The mechanical advance is actuated by engine speed.