Chassis
generic / SAE
C004D
Brake System Pressure Slow Response
Brake system pressure response slower than expected.
SystemChassis
Typegeneric / SAE
GroupC0
Range / number– / 4D
Possible causes
- Pump weak or hydraulic restriction 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: 400–2500 €
- Estimated time: 2–6 h
- Component: hcu
- Component: brake pump
- MIL / check engine light
- drive cycle required
- limp mode possible
Sources
References
sae:J2012