Pro
te
cte
d b
y c
op
yri
gh
t. C
op
yi
ng
fo
r p
riv
at
e
o
r c
o
m
m
e
rc
ia
l p
u
rp
o
s
e
s
, i
n
p
a
rt
o
r i
n
w
h
o
le
, i
s
n
o
t p
e
rm
itt
ed
u
nl
es
s a
ut
ho
ris
ed
by
Vo
lksw
agen
AG. Volkswagen AG doe
s not
gua
ran
tee
or a
cc
ep
t a
ny
lia
b
ilit
y w
ith
re
s
p
e
c
t t
o
th
e
c
o
rr
e
c
tn
e
s
s
o
f
in
fo
rm
a
tio
n
in
th
is
d
oc
um
en
t.
C
op
yrig
ht b
y V
olk
sw
age
n A
G.
4.31.1
Engine identification letters BAH and
BLH
– Remove the crankcase air vent hose -1- from the air filter case.
– Remove the air filter case from the supports and the butterfly
valve command unit -arrows- and remove the air filter case.
Carry out work sequence as follows:
– Loosen the spark plug connectors -arrows- with the Assembly
tool -T10029- .
– Remove the spark plugs with the Spark plug wrench -3122B- .
– Install the new spark plugs with the Spark plug wrench -3122B-
and the Torque wrench - 5 to 50 Nm (enc. 1/2") -VAG 1331- .
Tightening torque: 30 Nm.
Note
♦
The air filter case assembly is initially carried out by fitting the
butterfly valve command unit nozzle, side supports, and then
the front supports.
♦
Apply neutral soap or coolant additive to the fastening bear‐
ings and to the butterfly valve control unit nozzle packing for
easier installation.
WARNING
♦ Follow the rules for disposal!
– Connect the spark plug connectors.
– Install the air filter case.
4.31.2
Engine identification letters AQZ and
BKR
– Remove the crankcase venting hose -1- from the air filter case.
FOX 2004 ➤
Maintenance - Edition 07.2010
80
4. Service descriptions