Renault Laguna III Manual page 1644

Particle filter: Removal - Refitting
V9X
a Remove the particle filter pressure sensor nut (5) .
a Separate the particle filter pressure sensor from its
mounting.
a Remove the particle filter pressure sensor mounting.
a Unclip the pressure measurement pipe of the parti-
cle filter pressure sensor from the heat shield.
a Separate the « particle filter pressure measurement
pipe - particle filter pressure sensor » assembly.
EXHAUST
137906
a Remove the nuts (6) from the connecting hose on
the catalytic pre-converter.
19B-78
Note:
Apply SUPER RELEASING AGENT (see Vehi-
cle: Parts and consumables for the repair)
(04B, Consumables - Products) on the studs
between the connecting hose and the catalytic
pre-converter to avoid breaking the studs while
loosening the nuts.
19B
133904