TT Quattro Coupe V6-3.2L (CBRA) (2008)
-
Connect pressure gauge to fuel supply line.
-
Install a fuel-resistant auxiliary hose on fuel rail and on pressure gauge.
‹› Use hose clamps - arrows - to secure assisting hose.
-
Open shut-off valve of pressure gauge set.
‹› The lever points in direction of flow.
-
Start engine and let run at idle.
-
Measure fuel pressure.
‹› Specified value: approx. 4.0 bar positive pressure
-
Switch off ignition.
If specification is not obtained:
-
Check delivery quantity of Fuel Pump (FP) => Fuel
Supply System 20 Diagnosis and Testing.
Checking seal and residual pressure:
-
Check for leaks and for residual pressure by observing pressure loss on pressure gauge.
‹› After 10 minutes there must be a residual pressure of at least 3.0 bar.
The holding pressure drops below 3.0 bar:
-
Start engine and let run at idle.
-
Wait until pressure has built-up, and then switch off ignition. Simultaneously close shut-off valve of pressure gauge K-Jetronic (V.A.G 1318).
‹› Lever stands perpendicular to direction of flow - arrow -.