Chassis
generic / SAE
C055D
Brake Hydraulic Circuit B Leak
Pressure loss in brake hydraulic circuit B detected — fluid leak somewhere in this circuit (caliper, hose, line, master cylinder).
SystemChassis
Typegeneric / SAE
GroupC0
Range / number5 / 5D
Possible causes
- Brake fluid leak in circuit B high
Symptoms
- ABS warning light on
- ESC/stability control deactivated
- Possible reduced brake assist
- Speedometer may behave erratically
Inspection / repair
- Difficulty: hard
- DIY: shop recommended
- Estimated cost: 200–2000 €
- Estimated time: 1–6 h
- Component: brake circuit b
- MIL / check engine light
- limp mode possible
Sources
References
sae:J2012