Checking Fuel Pumps - Volkswagen Touareg 2003 Workshop Repair Manual

♦ Connections for breather and fuel lines must engage audibly
when joined.
♦ Install breather and fuel hoses free of kinks.
♦ Secure fuel hoses with spring-type clips.
♦ Ensure that fuel hose connections are tight.
♦ Ensure earth cable -2- is secured tight to body.
Note
Before bolting on fuel tank, check that supply and breather lines
are still clipped onto fuel tank.
1.10

Checking fuel pumps

Checking delivery rate of pumps
Checking current draw of pumps
Checking non-return valve of right pump
Checking non-return valve of left pump
Special tools and workshop
equipment required
♦ Diesel extractor -VAS
5226-
♦ Pressure gauge -V.A.G
1318-
♦ Adapter -V.A.G 1318/9-
♦ Adapter -V.A.G 1318/10-
♦ Adapter -V.A.G 1318/24-
♦ Remote control for V.A.G
1348 -V.A.G 1348/3 A-
♦ Multimeter -V.A.G 1715- or
hand-held multimeter -
V.A.G 1526D- with pickup
clamp -V.A.G 1526B/2-
♦ Spring-type clip pliers -VAS
5024 A-
♦ Current flow diagram
♦ Measuring container
⇒ page 108
⇒ page 109 .
⇒ page 111
⇒ page 113
8-cylinder injection engine - Edition 11.2011
1. Parts of fuel supply system
Touareg 2003 ➤
107