Fuel Pump, Checking Delivery Rate - Audi Q7 2007 Repair Manual

Audi Q7 2007 ➤
Fuel Supply System - Edition 10.2018
– Connect Fuel Injection Gauge Kit - VAG1318- with Fuel Injec‐
tion Gauge Kit - CO Adapter - VAG1318/11- and -
VAG1318/12- in fuel line.
– Connect assisting hose -arrow- on pressure gauge and hold it
in a measuring container.
– Open shut-off valve of pressure gauge.
• The lever points in the direction of flow.
– Generate pressure in the fuel system by pressing the switch
of the remote control and slowly closing the shut-off valve of
the pressure gauge.
• Specified value: 4 bar (58 psi) pressure.
– From this point on do not move position of shut-off valve.
– Empty the measuring container.
– Press and hold the switch on the remote control for 15 sec‐
onds.
– Compare quantity of fuel delivered with minimum delivery rate
3
in diagram (cm /15s).
Note
Voltage at fuel pump with engine stopped and pump running is
approximately 2 volts less than battery voltage.
If minimum delivery quantity is not obtained, the following mal‐
functions may be present:
♦ The fuel lines are pinched.
♦ The fuel filter is clogged.
♦ The fuel pump is faulty.
Assemble in reverse order of disassembling. Note the following:
– Attach the fuel line to the engine. Refer to ⇒ Rep. Gr. 24 .
Vehicles from 11/2006:
– Insert the frame into the floor covering. Refer to the Parts Cat‐
alog and ⇒ Body Interior; Rep. Gr. 70 .
– Install the right seat cushion in the second row. Refer to ⇒
Body Interior; Rep. Gr. 72 .
2.8

Fuel Pump, Checking Delivery Rate

Special tools and workshop equipment required
♦ Fuel Injection Gauge Kit - VAG1318-
♦ Fuel Injection Gauge Kit - Adapters 10-12 - VAG1318/10-
♦ Fuel Injection Gauge Kit - CO Adapter - VAG1318/11-
♦ Injection Rate Comparison Meter Kit - Remote Cable -
VAG1348/3A- with Injection Rate Kit - Remote Cable -
VAG1348/3-3-
♦ Connector Test Set - VAG1594C-
♦ Measuring container, fuel-resistant
30
Rep. Gr.20 - Fuel Supply
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.