2009 RENAULT TWINGO RS exhaust

17B-18
PETROL INJECTION
Oxygen sensors: Removal - Refitting
K4M
17B
REFITTING THE UPSTREAM OXYGEN
SENSOR
I - REFITTING PREPARATION OPERATION
aClean the threading of the upstream oxygen sensor
using a WIRE BRUSH.
aUse SURFACE CLEANER (see Vehicle: Parts
and consumables for the repair) (04B, Consuma-
bles - Products) to clean and degrease:
-the thread hole of the upstream oxygen sensor on
the exhaust manifold,
-the threading of the upstream oxygen sensor if it is
to be reused.
II - REFITTING OPERATION
aRefit the upstream oxygen sensor.
aAngle tighten the upstream oxygen sensor ( 90˚).
aAttach the upstream oxygen sensor wiring.
aConnect the upstream oxygen sensor connector.III - FINAL OPERATION
aRefit:
-the engine undertray.
-the front right-hand wheel arch liner (see Front
wheel arch liner: Removal - Refitting) (55A, Ex-
terior protection),
-the front right-hand wheel (see Wheel: Removal -
Refitting) (35A, Wheels and tyres).
REMOVAL OF THE DOWNSTREAM
OXYGEN SENSOR
I - REMOVAL PREPARATION OPERATION
aDisconnect the battery (see ) (80A, Battery).
aRemove:
-the windscreen wiper arms (see Windscreen wip-
er arm: Removal - Refitting) (85A, Wiping -
Washing),
-the scuttle panel grille (see Scuttle panel grille:
Removal - Refitting) (56A, Exterior equipment),
-the scoop under the scuttle panel grille (see Scoop
under the scuttle panel grille: Removal - Refit-
ting) (56A, Exterior equipment).
132539
Note:
For angular tightening, make a mark (6) on the
catalytic pre-converter in the middle of the flat
surface of the upstream oxygen sensor. Move the
upstream oxygen sensor stop (7) to the mark (6)
.

17B-19
PETROL INJECTION
Oxygen sensors: Removal - Refitting
K4M
17B
II - REMOVAL OPERATION
aDisconnect the downstream oxygen sensor connec-
tor (3) .
aUnclip the wiring from the downstream oxygen sen-
sor at (4) .
aRemove the downstream oxygen sensor (5) using
the tool (Mot. 1495).
REFITTING THE DOWNSTREAM OXYGEN
SENSOR
I - REFITTING PREPARATION OPERATION
aClean the threading of the downstream oxygen sen-
sor using a WIRE BRUSH.
aUse SURFACE CLEANER (see Vehicle: Parts
and consumables for the repair) (04B, Consuma-
bles - Products) to clean and degrease:
-the thread hole of the downstream oxygen sensor
on the exhaust manifold,
-the threading of the downstream oxygen sensor if it
is to be reused.
II - REFITTING OPERATION
aRefit the downstream oxygen sensor.
aTorque tighten the downstream oxygen sensor
(45 N.m) using the tool (Mot. 1495-01).
aClip on the downstream oxygen sensor wiring.
aConnect the downstream oxygen sensor connector.III - FINAL OPERATION
aRefit:
-the scoop under the scuttle panel grille (see Scoop
under the scuttle panel grille: Removal - Refit-
ting) (56A, Exterior equipment),
-the scuttle panel grille (see Scuttle panel grille:
Removal - Refitting) (56A, Exterior equipment),
-the windscreen wiper arms (see Windscreen wip-
er arm: Removal - Refitting) (85A, Wiping -
Washing).
aConnect the battery (see ) (80A, Battery).
132378

19B-1
EXHAUST
Exhaust: List and location of components
19B

19B-2
EXHAUST
Exhaust: List and location of components
19B
K9K – D4F, and 780
121642

19B-3
EXHAUST
Exhaust: List and location of components
19B
(ZC) : Area to be cut

19B-4
EXHAUST
Exhaust: List and location of components
19B
D4F, and 772 – D7F
121641

19B-5
EXHAUST
Exhaust: List and location of components
19B
(ZC) : Area to be cut

19B-6
EXHAUST
Exhaust: List and location of components
19B
K4M
132480