OBD-II code · Chassis
C0049 Brake Fluid Level
Brake fluid level low — typically detected by reservoir float switch.
Is it safe to drive with C0049?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyLow brake fluid (leak or pad wear)
Symptoms
- ABS warning light on
- ESC/stability control deactivated
- Possible reduced brake assist
- Speedometer may behave erratically
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.1–1 h
- Emissions test
- Usually unaffected
- Parts involved
- Brake Fluid Reservoir
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.