B0080Driver Seat Belt Load Limiter Deployment Control
- Generic OBD-II code · Body
- How the car detects it
- B0080 reports a fault in the firing loop that switches the driver's belt force limiter. In adaptive retractors a small squib, fired by the airbag module, changes the level at which the webbing is paid out, so the chest load suits crash severity and occupant. Mercedes-Benz uses the code exactly so: topic LI54.21-P-070658 (cars of the 177, 118 and 247 series) gives B008013 for an interrupted igniter of the driver's belt force limiter, traced to raised resistance at the airbag module plug. Ford names B0080 among the restraint module codes cured by reprogramming on 2017–2018 Fusion/MKZ, without giving its meaning. Older GM-built Saabs (9-3, 9-5) use B0080 for an internal fault of the driver-side B-pillar or side impact sensor instead. With the code set, the airbag lamp is lit.
- What you may notice
- Airbag warning lamp on, sometimes with an SRS message in the cluster
- Driver's belt keeps only its basic force limiting level in a crash
- Safety note: pyrotechnic part in the driver's retractor; work only de-energised (battery off, wait time) at a specialist workshop
- Likely causes
- LikelyRaised contact resistance at the airbag module connector (Mercedes LI54.21-P-070658)
- PossibleChafed or disconnected lead to the driver's retractor at the B-pillar
- RareRestraint module software needing an update (Ford Fusion/MKZ)
- RareInternal fault of the load limiter squib in the retractor
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €60 – €900
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.