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Home >> Jaguar >> 2010 >> XFR >> Repair and Diagnosis >> External Pages >> Different car >> Section 150 (Brake System - General Information -- XF/X250) >> Brake System - General Information >> Diagnosis And Testing >> Brake System >> Pinpoint Tests >> Pinpoint Test F: The Pedal Goes Down Slowly

Pinpoint Test F: The Pedal Goes Down Slowly

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2015 Jaguar XFR-S, 2015 Jaguar XFR, 2015 Jaguar XF, 2014 Jaguar XFR-S, and 2014 Jaguar XFR. However, it is still accessible from the selected car via links, so may be relevant.
  1. F1: ROAD TEST VEHICLE - CHECK BRAKE PEDAL OPERATION 
    1. Check if the condition occurs during actual stopping application by applying the brake pedal while the vehicle is moving.

    Does the condition occur when the vehicle is moving?

    • Yes  : GO to   F2 . 
    • No  : GO to   F3 . 
  2. F2: CHECK FOR BRAKE SYSTEM LEAKS 
    1. Check for external brake system leaks. For additional information, refer to brake master cylinder component test in this section.

    Are there any external brake system leaks?

    • Yes  : Rectify as necessary. Add fluid and bleed the brake system.

      Refer To: Brake System Bleeding  (- General Information, General Procedures).

      Re-test the system for normal operation.

    • No  : GO to   F3 . 
  3. F3: CARRY OUT A BRAKE MASTER CYLINDER BYPASS TEST 
    1. Test for brake master cylinder bypass condition. Refer to Brake master cylinder component test in this section.

    Has a concern been identified?

    • Yes  : Install a new brake master cylinder, add fluid and bleed the brake system.

      Refer To: Brake System Bleeding  (- General Information, General Procedures).

      Re-test the system for normal operation.

    • No  : No action required, system is OK.