Body, generic

B00F6 Third Row Center Inflatable Seat Belt Deployment Control

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

B00F6 names the deployment circuit for an inflatable belt at the middle seat of row three. That seat is the least likely place for such a belt: the series systems on record sit at outboard rear seats, Ford's Explorer only in row two and Mercedes' beltbag on the outer rear belts. The 2017 Mercedes GLS manual, for a three-row SUV, lists pyrotechnic tensioners and force limiters for its third-row belts, but no beltbag there. NHTSA's belt test series likewise used the inflatable Explorer belt from a second-row seat. Joyson's belt-attached restraint study for new interior layouts shows where such bags might spread. No maker publishes B00F6; if set, the airbag lamp is on and that belt would not inflate.

Likely causes

Airbag module coded for a centre third-row inflatable belt the vehicle does not have
Inflator plug of the centre belt loosened when the third-row seat was folded or removed
Igniter in the centre belt inflator out of its resistance window

Symptoms

  • Airbag warning lamp lit
  • Centre third-row inflatable belt would not inflate in a crash
  • Safety note: igniter-equipped part – battery off, observe waiting time, work only in a specialist workshop

Repair estimate

DifficultyShop_onlyWorkshop job
Parts and labour€80–1,500
Time0.5–3 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

third row center inflatable beltsquib circuitsrs control module

Related codes

B00F5B00F7B00F2

References: mbusa.com, rosap.ntl.bts.gov, joysonsafety.com, fordservicecontent.com.