Q5 Quattro V6-3.2L (CALB) (2009)
Fuel Gauge Sender: Service Precautions
General, Technical Data
Before Opening High Pressure Fuel Injection System
‹› The fuel injection system is separated into a high-pressure section (maximum approximately 120 bar) and a low-pressure section (approximately 6
bar).
‹› Before a component in the fuel injection system high pressure area is remove, the fuel pressure must be definitely reduced to a residual pressure of
approximately 6 bar, as described in the following.
Special tools, testers and auxiliary items required
‹› Trim removal wedge (3409)
‹› Vehicle diagnostic, testing, and information system (VAS 5051B)
Procedure
-
With the ignition off, connect the vehicle diagnosis, testing and information system (VAS 5051B) to the Data Link connector (DLC) using the
diagnostic lead.
-
Start engine and let it run at idle.
Display on (VAS 5051B):