Pressure Hold

1992 BMW M5SECTION Pressure Hold

If the control module detects a decrease in the frequency (rate of deceleration) of one or more of the individual signals it perceives this as possible wheel lock.

The control module energizes the inlet valve for that specific brake circuit. This closes the inlet port and prevents any additional hydraulic pressure from being exerted on the brake caliper by the driver.

Fig 1: Identifying Tyre Held Pressure
G03403464
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.