B0027
Rear Curtain Airbag Deployment Circuit
2006-2011 BMW 325i 3.0L I6 N52 🇩🇪
Critical SeverityBody
Description
Malfunction in the rear window curtain airbag deployment circuit. Some vehicles have a rear curtain airbag for rollover protection.
Symptoms
- Airbag warning light on
- SRS fault stored
- Rear curtain airbag inoperative
Common Causes
- Faulty rear curtain airbag
- Wiring damage in D-pillar or headliner
- Control module fault
- Previous rear collision damage
Diagnostic Steps
- Scan SRS codes
- Inspect D-pillar and headliner wiring
- Check rear curtain airbag connector
- Verify no prior collision damage
Repair Notes
Professional service required. Replace rear curtain airbag module or repair wiring.
Related Codes
Other Body Codes
- B0001Driver Frontal Stage 1 Deployment Control
- B0002Driver Frontal Stage 2 Deployment Control
- B0003Passenger Frontal Stage 1 Deployment Control
- B0004Passenger Frontal Stage 2 Deployment Control
- B0005Driver Knee Airbag Deployment Circuit
- B0006Passenger Knee Airbag Deployment Circuit
- B0007Rear Left Side Airbag Deployment Circuit
- B0008Rear Right Side Airbag Deployment Circuit
- B0010Driver Side Airbag Deployment
- B0011Driver Side Airbag Deployment Circuit Open
B0027 on Other Vehicles
Common Questions
What does code B0027 mean on a 2006-2011 BMW 325i?
B0027 stands for "Rear Curtain Airbag Deployment Circuit". Malfunction in the rear window curtain airbag deployment circuit. Some vehicles have a rear curtain airbag for rollover protection.
What are the symptoms of B0027 on a BMW 325i?
Common symptoms of B0027 include: Airbag warning light on, SRS fault stored, Rear curtain airbag inoperative.
What causes B0027 on a 2006-2011 BMW 325i?
Common causes of B0027 include: Faulty rear curtain airbag, Wiring damage in D-pillar or headliner, Control module fault, Previous rear collision damage.