Volkswagen Golf / Golf GTI / Jetta. Manual — part 90

26-4

5 - 13 Nm

6 - 25 Nm

7 - Heat

shield

8 - 10 Nm

9 - Coolant

pipe

Secured

to
exhaust
gas
manifold
together
with
heat
shield

Coolant

hose
connection
diagram

Page 19-
11

10

-

Connector

Black,

6-pin

Gold

plated
contacts

Exhaust system components, servicing

26-5

Repair

Manual, 2.8
Liter VR6 4V
Fuel Injection &
Ignition, Engine
Code(s): BDF,
Repair Group

11 - Heated

Oxygen
Sensor
(HO2S) -
G39-*,
50 Nm

Remove

and
install
with
oxygen
sensor
ring
spanner
3337

Grease

only
threads
with G 052
112 A3 hot
bolt paste
(anti-seize
compound).
Grease
must not
get into
slots on
sensor
body

If seal

is
leaking
cut
open
and
replace.

Checking

oxygen
sensor
control:

Exhaust system components, servicing

24

CAUTION!

Part numbers
are for
reference
only. Always
check with
your Parts
Dept. for the
latest parts
information.

12

-

Connector

Black,

4-pin

Contacts

3 and 4
are gold
plated

Exhaust system components, servicing

26-6

Repair

Manual, 2.8

13

-

Oxygen
Sensor
(O2S)
Behind
Three
Way
Catalytic
Converter
(TWC) -
G130-*,
50 Nm

Remove

and
install
with
oxygen
sensor
ring
spanner
3337

Grease

only
threads
with G 052
112 A3 hot
bolt paste
(anti-seize
compound).
Grease
must not
get into
slots on
sensor
body

If seal

is
leaking
cut
open
and
replace

Checking

oxygen
sensor
control:

Exhaust system components, servicing