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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 >> Symptom Chart

Symptom Chart

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.
SYMPTOM POSSIBLE CAUSE ACTION
Brakes noisy
  • Brake pads
  • Brake discs
GO to Pinpoint Test A .
Vibration when brakes are applied
  • Wheels/tires out of balance
  • Wheel hub nuts loose
  • Brake caliper mounting bolts loose
  • Brake pads
  • Foreign material/scratches/corrosion on brake disc contact surfaces
  • Excessive brake disc thickness variation
  • Excessive brake disc runout
  • Wheel bearing wear or failure
  • Suspension bushing wear or failure
  • Steering bushing wear or failure
GO to Pinpoint Test B .
The brakes pull or drift
  • Tire pressures/wear
  • Brake calipers
  • Brake pads
  • Brake discs
  • Wheel alignment adjustment
  • Wheel bearing
  • Suspension bushings and ball joints
GO to Pinpoint Test C .
The pedal feels spongy
  • Air in brake hydraulic system
  • Leak in hydraulic system
  • Brake booster/master cylinder
  • Brake pads
GO to Pinpoint Test D .
The pedal goes down fast
  • Air in brake hydraulic system
  • Leak in hydraulic system
  • Brake booster/master cylinder
  • Brake pads
GO to Pinpoint Test E .
The pedal goes down slowly
  • Air in brake hydraulic system
  • Brake booster/master cylinder
GO to Pinpoint Test F .
Excessive brake pedal effort required
  • Brake pads
  • Brake booster
GO to Pinpoint Test G .
Brake lockup during light brake pedal force
  • Brake pads
  • Brake calipers
GO to Pinpoint Test H .
Brakes drag
  • Electric park brake control applied/malfunction
  • Seized brake caliper slide pins
  • Seized brake caliper
  • Brake booster
  • Pedal gear
GO to Pinpoint Test I .
Excessive/Erratic brake pedal travel
  • Hydraulic system
  • Brake pads
  • Brake discs
  • Hub and bearing assembly
GO to Pinpoint Test J .
The red brake warning indicator is always on
  • Fluid level
  • Brake master cylinder fluid level sensor
  • Electric park brake control
  • Electrical circuit
Fill the system to specification. Check for leaks. Install a new brake master cylinder fluid reservoir as required. Refer to: Brake Master Cylinder (Hydraulic Brake Actuation, Removal and Installation).
For electric park brake control and circuit tests.
Refer to: Parking Brake (Diagnosis and Testing).
Slow or incomplete brake pedal return
  • Brake pedal binding
  • Brake booster/master cylinder
GO to Pinpoint Test K .