Symptom D: Brake Pedal Motion Too Soft & Spongy
WARNING: This page is about a different car, the 2004 BMW Z4 and 2003 BMW Z4. However, it is still accessible from the selected car via links, so may be relevant.
SYMPTOM D: BRAKE PEDAL MOTION TOO SOFT & SPONGY
| Cause | Solution |
|---|---|
| Air In Braking System | Top Up Or Change Brake Fluid, Bleed Brake System |
| Insufficient Brake Fluid In Expansion Tank | Top Up Or Change Brake Fluid, Bleed Brake System |
| Overheated Brake Fluid, Vapor Lock Due To Excessive Water Content In Brake Fluid Or Excessive Brake Loads | Top Up Or Change Brake Fluid, Bleed Brake System |