What is the construction and purpose of brake boosters and brake force regulators?

Brake boosters and brake force regulators are braking system components installed at the master cylinder and in the pressure regulation circuit, respectively. A booster typically consists of a housing, diaphragm, valve, and pushrod, while a regulator consists of a body and a mechanism regulating pressure flow. Their task is to increase braking efficiency and maintain proper force distribution between the vehicle's axles.

What are brake boosters and brake force regulators used for?

Brake boosters and brake force regulators are used to improve braking force and stability under various driving and load conditions. The booster reduces the pressure required on the pedal, while the regulator limits excessive pressure on the rear axle. Without these components, the system may operate less precisely, and the driver will feel greater pedal resistance or poorer braking balance.

What role does the vacuum booster play in the braking system?

The vacuum booster is an assembly that works with the brake pedal and master cylinder, using pressure differences to increase the force transmitted to the hydraulic system. In addition to the diaphragm itself, it includes a control valve, working chambers, and a pushrod. Its efficiency affects not only the comfort of pedal pressure but also the rapid response of the entire system during braking.

How to choose a brake booster and brake force regulator for a car?

When choosing, it is worth comparing the OEM number, interchangeable numbers, mounting type, and the type of cooperating master cylinder. The body version, engine, and presence of ABS or EBD also matter. In practice, it is safest to confirm compatibility by VIN and compare the part with the old component.

What symptoms indicate a problem with the brake booster or brake force regulator?

Typical symptoms include a hard brake pedal, delayed system response, uneven braking, and a change in car behavior during heavy deceleration. In some cases, there is also a hissing of air or a noticeable leak in the vacuum system. A regulator may show symptoms in the form of too strong or too weak rear-axle braking.

What cooperating elements should be paid attention to during installation?

During installation, check the condition of the vacuum line, the tightness of connections, the setting of the pushrod, and compatibility with the master cylinder. It is also worth assessing the condition of the brake fluid and the patency of the lines leading to other system components. If the car uses advanced braking electronics, correct cooperation with the control module is also important.

Servos and brake force correctors

At the Global Parts automotive store, we offer a wide selection of original used car parts, including brake boosters and brake fluid regulators for many popular car brands such as BMW, Mini, Mercedes, Audi, Volkswagen, and others. The brake boosters and brake fluid regulators we offer undergo quality control to ensure you receive a top-quality product.

More information

Find it faster

Match to your vehicle

Make

Electronic Handbrake BMW E70 E71 Parking Brake Actuator Control Unit 6779451

Product currently unavailable

Part no. A9104300100

Mercedes W907 Brake Servo Booster Master Cylinder Unit A9104300100

Product currently unavailable

Part no. A2054300330

Mercedes W205 Brake Servo Booster Master Cylinder Braking Module A2054300330

Product currently unavailable

Part no. 8K0612103E

Audi A4 B8 A5 8T Brake Servo Booster Master Cylinder Module 8K0612103E

Product currently unavailable

Part no. A2054301400

Brake Servo Mercedes W205 C238 Booster Master Cylinder Module A2134300430

Product currently unavailable

Part no. A0009058500

Mercedes W205 Pressure Sensor Brake Booster Vacuum Servo A0009058500

Product currently unavailable

Part no. A9104310900-1

Brake Servo Mercedes Sprinter W907 W910 Booster Master Cylinder Unit A9104300000

Product currently unavailable

Part no. GK21-2B195-AC

Ford Transit Custom Brake Servo Master Cylinder 2.0 EcoBlue GK21-2B195-AC

Product currently unavailable

Part no. 7E0612101C

VW Transporter T5 Brake Servo Booster Master Cylinder Unit 2.0 TDI 7E0612101C

Product currently unavailable

Part no. 7L8612105P

Audi Q7 4L Brake Servo Brake Master Cylinder Booster Unit 7L8612105P 7L8612101

Product currently unavailable

Part no. 6764117

BMW 1 3 Series E81 E82 E87 E90 E91 E92 E93 Expansion Tank Brake Fluid Reservoir

Product currently unavailable

Part no. 8K0612103M-1

Audi S5 8T Brake Servo Master Cylinder Vacuum Booster 8K0612103M

Product currently unavailable

Part no. 3450589-2

BMW X3 E83 Brake Servo Booster Unit Master Cylinder 3450200

Product currently unavailable

Part no. 6Q1614105T

VW Volkswagen Polo 9N Seat Ibiza 3 Skoda Brake Servo Booster Unit 6Q1614105T

Product currently unavailable

Part no. 6875610

Brake Servo BMW F46 F48 Mini F60 Brake Booster Master Cylinder Reservoir 6875610

Product currently unavailable

Part no. 7H2611931HD

Volkswagen VW Transporter Vaccum Pipe Brake Booster No Return Valve 7H2611931HD

Product currently unavailable

Part no. A0004308608

Mercedes Sprinter W901 W903 Brake Servo Booster Master Cylinder Unit A0004308608

Product currently unavailable

Part no. 3450589-5

BMW X3 Series E83 Brake Servo Unit Master Cylinder Reservoir Tank 3453259

Product currently unavailable

Part no. 9T16-2B195-AA

Ford Transit Connect Brake Booster Servo Unit Master Cylinder 9T16-2B195-AA

Product currently unavailable

Part no. RHD-A1724300730

Mercedes SLK R172 Brake Servo Master Cylinder Booster Module A1724301130

Product currently unavailable

Part no. 6778826-1

BMW 5 6 Series E60 E61 E63 E64 Brake Servo Unit 6778826

Product currently unavailable

Part no. A9064300208

Mercedes Sprinter W906 Brake Servo Booster Master Cylinder Unit A9064300208

Product currently unavailable

Part no. 7500299-1

BMW Z4 Series E85 Brake Servo Vacuum Hose Pipe 6759932

Product currently unavailable

Part no. 7L0614517D

Porsche Cayenne 95B ABS Pump Braking Control Module 7L0614517D 7L0907379Q

Product currently unavailable

Part no. A1644310427

Mercedes W164 Brake Servo Brake Master Cylinder Booster A1644301030

Product currently unavailable

Part no. 6786556-1

BMW 5 6 Series E60 E61 E63 E64 Brake Servo Unit 6786556

Product currently unavailable

Part no. 2534401

Ford Transit Custom Brake Servo Master Cylinder With Reservoir 2534401

Product currently unavailable

Part no. 6768359

BMW Z4 Series E85 E86 N52 Vacuum Pipe Hose Brake Servo 6768359

Product currently unavailable

Part no. A2034302829

Mercedes-Benz C-Class W203 Brake Vacuum Pipe Hose Line A2034302829

Product currently unavailable

Part no. RHD-99135557802

Porsche 718 Boxster 982 Brake Servo Vacuum Pipe Line 99135557802

Product currently unavailable

Part no. 3450589-6

BMW X3 E83 Brake Servo Unit Master Cylinder Reservoir Tank 3453259

Product currently unavailable

Part no. A0054304230

Mercedes-Benz A-Class W168 Brake Servo Master Cylinder A0054304230

Product currently unavailable

Part no. A2054300002

Brake Booster Mercedes W205 W213 Master Cylinder Module Reservoir A2054300002

Product currently unavailable

Part no. 6786685

BMW F01 F02 F07 GT Brake Servo Booster Master Cylinder Unit Container 6786685

Product currently unavailable

Part no. 8R0612107D

Audi Q5 8R Brake Servo Booster Master Cylinder Braking Unit 8R0612107D

Product currently unavailable

Part no. 2753129-1

Mini Cooper D R55 R56 W16 Diesel Power Brake Servo Vacuum Pipe Hose Line 2753129

Product currently unavailable

Part no. 6765936-1

BMW E60 E61 M54 Brake Servo Unit Cylinder Assembly Bracket 6765936

Product currently unavailable

Part no. RHD-8K2611931Q

Audi A4 B8 Brake Servo Vacuum Pipe Hose Line 8K2611931Q

Product currently unavailable

Part no. A0054301230

Mercedes-Benz A-Class W168 Brake Servo Master Cylinder A0054301230

Product currently unavailable

Part no. 4F0612107E

Audi A6 C6 Brake Servo Booster Master Cylinder Unit 4F0612107E

Product currently unavailable

Part no. 0204255096

Servo Fluid Tank Citroen Relay Peugeot Boxer Brake Servo Reservoir 0204255096

Product currently unavailable

Part no. 3450589

Brake Servo BMW X3 E83 Unit Master Cylinder 3403547

Product currently unavailable

Part no. A4474310200

Mercedes Vito W447 Brake Servo Booster Master Cylinder Braking Unit A4474300208

Product currently unavailable

Part no. 8K0612107D

Audi A5 Power Brake Servo Unit Master Cylinder 8K0612107D

Product currently unavailable

Part no. 32662916

Fiat Panda Mk2 Brake Fluid Reservoir Bottle Cover Cap 32662916

Product currently unavailable

Part no. A1644300401

Mercedes ML GL W164 X164 Brake Servo Master Cylinder A1644300401

Product currently unavailable

Part no. JY162420DC

Ford Transit Courier Brake Booster Vacuum Pipe Hose Line Tube JY16-2420-DC

Product currently unavailable

Part no. 6875172

BMW X3 G01 X4 G02 Brake Servo Unit Master Cylinder Booster Petrol 6881094

Product currently unavailable

Part no. A2124304829

Vacuum Pipe Mercedes W212 W218 OM642 Line Hose Brake Servo Unit A2124304829

Product currently unavailable

Part no. 5N2614105F

Audi Q3 8U 2.0 TDI Brake Servo Master Cylinder Unit 5N2614105F

Product currently unavailable

Part no. BJ32-2B195-AC

Range Rover Evoque L538 Brake Servo Master Cylinder Brake Booster BJ32-2B195-AC

Product currently unavailable

Showing 199-249 of 249 products