Renault Laguna III Manual page 819

Exhaust manifold: Removal - Refitting
K4M
When replacing the exhaust manifold
a Refit the upstream oxygen sensor using the (Mot.
1495-01).
a Torque tighten the upstream oxygen sensor (44
Nm).
a Refit the lower heat shield.
a Tighten in order and to torque the bolts of the lower
heat shield12 N (m).
FUEL MIXTURE
126617
12A-118
II - REFITTING OPERATION FOR PART
CONCERNED
a Refit:
- a new exhaust manifold seal,
- the exhaust manifold.
a Torque tighten in order the exhaust manifold nuts
(26 Nm).
III - FINAL OPERATION.
a Refit:
- the upper heat shield,
- the exhaust manifold stay.
a Tighten to torque:
- the exhaust manifold stay bolt (44 Nm),
- the exhaust manifold stay nut44 N (m),
a Refit a new ring between the exhaust manifold and
the catalytic converter.
a Torque tighten the exhaust bracket bolts (22 Nm).
a Refit the heater matrix hose bracket.
a Torque tighten the heater matrix hose bracket bolt
(10 N.m).
a Clip the heater matrix hoses onto the heater matrix
hose bracket.
a Connect the upstream oxygen sensor connector.
12A
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