Renault Megane Quiz
Electrical equipment

Front lower belt pretensioner

In this manual: Electrical equipment
Engine and peripherals — 141Chassis — 79Chassis — 72Renault Mégane III Driver's Manual — 87Electrical equipment — 221Engine and peripherals — 47Electrical equipment — 80Transmission — 14Air conditioning — 30Bodywork — 115Trim and upholstery — 44General vehicle information — 27Air conditioning — 59General vehicle information — 16Transmission — 38Sealing and soundproofing — 7General vehicle information — 3
~1min read

B84 or S84

Essential equipment
diagnostic tool

Tightening torques
pretensioner mounting bolt 2.1 daN.m

REMOVAL

IMPORTANT

Before removing any component of the safety system, lock the airbag control unit using the diagnostic tool. When this function is active, all firing circuits are inhibited and the airbag warning light on the dashboard comes on (ignition on).

Prétensionneur ventral avant
  • Unclip the seat belt by pressing the latch (1).
Prétensionneur ventral avant
  • Remove the plastic cover.
Prétensionneur ventral avant
  • Remove:
  • the pretensioner mounting bolt (2),
  • the pretensioner connector,
  • the pretensioner assembly.
IMPORTANT

For disposal of an undeployed pretensioner, (see Airbags and Pretensioners chapter, Airbag and Pretensioner Control Unit, page 88C-39).

INSTALLATION

  • Refit in the reverse order of removal.
WARNING

After an airbag has deployed, certain parts must be replaced without fail (see "Repair precautions").

  • Observe the routing and mounting points of the wiring under the seat.
  • Tighten the pretensioner mounting bolt to torque (2.1 daN.m).
  • Replace any defective parts.
  • Reconnect the connector.
IMPORTANT

Check the airbag ECU using the diagnostic tool.

  • If everything is correct, unlock the airbag control unit; otherwise, see the diagnostic manual.

Test yourself

A quick Renault Megane quiz: every answer comes with an explanation and a link to the manual page.