The UK quattro Network
Audi ur-quattro 10V WR, WX and GV Engines
Checking the Cold Start Valve
Cars built in Model Years 1980 to 1982 inclusive
- On right-hand drive cars, remove the glovebox. On left-hand drive cars, remove the driver's side footwell trim
- Remove the fuel pump relay - fourth from the left on the top row
Cars built in Model Years 1983 onwards
- Remove the cover from the underbonnet fuse and relay box, and place it on the windscreen resting on the wiper arm - if it's placed under the bonnet and the bonnet is closed on it, a dent will result
- Remove the fuel pump relay - position 10, fourth from the left on the second row
- Attach a remote control lead (e.g., VAG 1348/3) to the fuel pump relay socket
- Place the switch in the vicinity of the cold start valve
- Operate the remote control switch to run the fuel pump
- The cold start valve must not drip within a minute
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