OBD-II code · Body
B011C Fluid Reservoir Level Sensor A
Fault on fluid reservoir level sensor A. Tracks fluid level in a wash, brake or coolant reservoir.
Is it safe to drive with B011C?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyFloat or sensor failed
Symptoms
- Warning light or symbol related to the affected system
- Comfort or safety function impaired
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.3–1.5 h
- Emissions test
- Usually unaffected
- Parts involved
- Fluid Reservoir Level Sensor A, Sensor Wiring
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.