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
.
10.4.3 Specifications
High-pressure side:
Increasing from the pressure when the engine is stopped to a
maximum of 20 bar positive pressure.
Low-pressure side:
Decreasing from the pressure when the engine is stopped to 1.3
bar positive pressure.
10.5 Checking systems with a restrictor and
reservoir and air conditioner compres‐
sor regulating valve - N280- (with exter‐
nally regulated air conditioner compres‐
sor)
Note
♦
Connecting air conditioner service station ⇒ page 126 .
♦
Observe the test prerequisites ⇒ page 127 .
– Raise engine speed to 2,000 rpm.
– Observe air conditioner service station pressure gauge.
Note
Switching pressures for the air conditioner compressor regulating
valve - N280- and the radiator fan - V7- are vehicle-specific.
⇒ Rep. gr. 87
10.5.1 Specifications:
High-pressure side:
Rising from starting pressure (when pressure gauge is connec‐
ted) to 20 bar.
Amarok 2011 ➤ , Beetle 2012 ➤ , Bora 1999 ➤ , CC 2010 ➤ , CC 2012 ➤ , ...
Air conditioning system with refrigerant R134a - Edition 10.2014
10. Checking pressures on vehicles 143