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Home >> BMW >> 2009 >> X5 48i >> Repair and Diagnosis >> External Pages >> Different car >> Section 132 (Brakes - Repair) >> Troubleshooting >> Symptom D: Brake Pedal Motion Too Soft & Spongy

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