Pinpoint Test D: The Pedal Feels Spongy
WARNING: This page is about a different car, the 2020 Jaguar XE and 2019 Jaguar XE. However, it is still accessible from the selected car via links, so may be relevant.
- D1: CHECK FOR SPONGY PEDAL (ENGINE OFF)
- Check for a firm brake pedal
Is the brake pedal effort and brake pedal travel normal?
Yes
Vehicle is OK
No
GO to D2.
- D2: CHECK BRAKE PEDAL RESERVE (ENGINE OFF)
- Pump the brake pedal 10 times and hold on the final application
Does the brake pedal feel firm on final application?
Yes
GO to D3.
No
BLEED the brake system. Refer to: BRAKE SYSTEM BLEEDING
- D3: CHECK BRAKE PEDAL RESERVE (ENGINE ON)
- Engine is idle
- Apply the brake pedal lightly three or four times
- Wait 15 seconds for the vacuum to recover
- Push down on the brake pedal until it stops moving downward or an increased resistance to the brake pedal travel occurs
- Hold the brake pedal in the applied position while increasing the engine speed to 2000 revs/min
- Release the accelerator pedal
Does the brake pedal move downward as the engine speed returns to idle?
Yes
GO to D4.
No
CHECK the vacuum to brake booster
- D4: CHECK BRAKE FLUID LEVEL
- Check the brake master cylinder reservoir fluid level
Is the fluid level OK?
Yes
BLEED the brake system. Refer to: BRAKE SYSTEM BLEEDING TEST the system for normal operation
No
CHECK for leaking brake system and RECTIFY as necessary. ADD fluid and BLEED the brake system. Refer to: BRAKE SYSTEM BLEEDING TEST the system for normal operation. REPEAT road test if necessary