Peugeot 307 Brake Master Cylinder


Created: 29. 12. 2007
Updated: 01. 03. 2008

Model:
Peugeot 307 with BOSCH master cylinder.

Problem:
Long brake pedal travel.
Partial brake failure.
Complete brake failure.

Cause:
Loss of all brake fluid through the brake maste cylinder.
Leaked fluid accumulates inside the brake booster. (brake servo)

Other Symptoms:
The brake fluid reservoir is empty.
No visible external leaks.
The vehicle does not slow down when the brake is operated.
Potentially brake fluid could enter the engine induction through the vacuum system
and cause the engine exhaust smoke. (white)

Solution:
Replace the brake master cylinder and the booster.

Brake Booster and master cylinder


Technical information by
peugeotlogic.com