B00E5Second Row Center Seat Belt Pretensioner C Deployment Control
- Generic OBD-II code · Body
- How the car detects it
- B00E5 covers a C-stage tensioner at the middle seat of row two. No manufacturer publishes it. Rear centre tensioners are scarce: Mercedes' 2017 GLS manual names tensioners only for the outer second-row belts, and the Mercedes bulletin that assigns B00E3 and B00E4 to the outer rear retractors has no centre entry. IIHS research on rear occupants (2020) states that belt countermeasures for the rear are available yet rarely fitted, so such slots often stay empty. If a vehicle does carry a centre retractor or buckle tensioner, the airbag module watches its squib like any other and sets B00E5 for an open, a short or a resistance drift; the warning lamp then comes on and that seat loses its tensioning.
- What you may notice
- Airbag lamp on
- Rear centre passenger may not be held back early in a frontal crash
- Safety note: the tensioner holds a pyrotechnic charge – battery off, wait time observed, repair at a specialist workshop
- Likely causes
- LikelyCentre-seat tensioner plug under the rear bench not engaged
- PossibleModule coded for a centre tensioner that the vehicle lacks
- PossibleLead damaged where it passes the split or folding rear bench hinge
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €60 – €700
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.