VW CGRA - Page 204

P
r
o
t
e
c
t
e
d
b
y
c
o
p
y
r
i
g
h
t
.
C
o
p
y
i
n
g
f
o
r
p
r
i
v
a
t
e
o
r
c
o
m
m
e
r
c
i
a
l
p
u
r
p
o
s
e
s
,
i
n
p
a
r
t
o
r
i
n
w
h
o
l
e
,
i
s
n
o
t
p
e
r
m
i
t
t
e
d
u
n
l
e
s
s
a
u
t
h
o
r
i
s
e
d
b
y
V
o
l
k
s
w
a
g
e
n
A
G
.
V
o
l
k
s
w
a
g
e
n
A
G
d
o
e
s
n
o
t
g
u
a
r
a
n
t
e
e
o
r
a
c
c
e
p
t
a
n
y
l
i
a
b
i
l
i
t
y
w
i
t
h
r
e
s
p
e
c
t
t
o
t
h
e
c
o
r
r
e
c
t
n
e
s
s
o
f
i
n
f
o
r
m
a
t
i
o
n
i
n
t
h
i
s
d
o
c
u
m
e
n
t
.
C
o
p
y
r
i
g
h
t
b
y
V
o
l
k
s
w
a
g
e
n
A
G
.
– Open shut-off taps “A” and “B” of pressure tester - VAS 6550-
and open in flow direction.
– Close shut-off valve “C”.
– Switch on pressure tester - VAS 6550- by pressing On/Off
button.
– Connect the vehicle diagnostic tester .
– Switch on ignition.
– Press one after the other in the display the buttons for Vehicle
self-diagnosis , Engine electronics and Final con-
trol diagnosis .
– Press right arrow button ► on display to Final control di-
agnosis for fuel pump electronics .
The fuel pump must now run slowly up to maximum speed.
– Read pressure shown by pressure tester - VAS 6550- .
• Specification: 5.0 … 7.0 bar
– Switch off ignition.
If reading matches specification:
– Checking holding pressure ⇒ page 200 .
If specification is not obtained
Note
When the pressure tester - VAS 6550- is to be removed, open the
shut-off tap “C” and release remaining pressure. To do this, hold
the hose of the shut-off tap “C” in a measuring container.
– Remove pressure tester - VAS 6550- and re-connect the fuel
supply line.
– Ensure that hose clip is securely fitted.
– Remove rear bench seat ⇒ General body repairs, interior;
Rep. gr. 72 ; Removing and installing bench seat .
– Fold right-hand carpet section to the side.
– Remove securing nuts -1 to 4- of flange cover.
– Remove flange cover.
Touareg 2010 ➤ , Touareg 2015 ➤
6-cylinder direct-injection engine (3.6 l engine, 4V) - Edition 12.2019
198 Rep. gr.20 - Fuel supply system