Brake Pressure Sensors
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Brake Pressure Sensors
DSC Dynamic Stability Control Brake Pressure Sensor for BMW | 34521164458
£24.75 Add to cart🚚 Estimated Delivery:Tue, 22nd SepDispatch: Next Working Day
Brake Servo Vacuum Sensors & Pressure Transducers
Browse replacement Brake Servo Vacuum Sensors and pressure switches at AH Car Parts. Mounted directly on the brake booster or vacuum line, our precision vacuum pressure sensors measure negative pressure in the brake servo to ensure optimal braking assistance and start-stop engine operation — backed by a full 1-Year Warranty.
What is a Brake Servo Vacuum Sensor?
The brake servo vacuum sensor measures negative pressure level inside the brake booster housing. It feeds continuous pressure data to the ECU and ABS/ESP module to trigger auxiliary vacuum pumps and control auto start-stop system eligibility.
Why Do Brake Vacuum Sensors Fail?
Continuous thermal cycling in the engine bay degrades internal piezoelectric diaphragm elements and circuit boards. Moisture intrusion, oil vapor from vacuum lines, or perished rubber grommet seals can also cause sensor signal distortion.
Symptoms of a Faulty Vacuum Sensor
Common symptoms include a hard brake pedal feel, disabled Start-Stop feature, warning lights for ABS/ESP or brake system errors, or diagnostic fault codes such as C0082, P0555, P0556, P0557, or P0558.
Why Choose AH Car Parts?
Our replacement brake booster pressure sensors feature high-accuracy piezoelectric elements, OE-grade rubber sealing rings, and multi-pin electrical connectors for exact push-fit installation into the brake servo. Fast UK dispatch.