Servos and brake force correctors
More informationAt 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.
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In Stock
Price
Part no. rhd-6775930
BMW 1 3 SERIES E81 E87 E90 E90N E91 E92 E93 Brake Servo Unit 6775930
£23.95
Free delivery: Jul 23
If paid before 14:00
-15%
Part no. 6759450
BMW 1 3 Series E81 E87 E88 E90 E91 E92 LCI Brake Servo Unit Master Cylinder
Promo price
£23.95
£20.36
Free delivery: Jul 23
If paid before 14:00
-5%
Part no. rhd-7577337
BMW 1 3 X1 Series E81 E84 E87 E90 E91 E92 E93 Brake Servo Vacuum Pipe
Promo price
£13.95
£13.25
Free delivery: Jul 23
If paid before 14:00
Part no. 6786583
Mini R55 R56 R60 Brake Servo Braking Unit Master Cylinder 6786583
£23.95
Free delivery: Jul 23
If paid before 14:00
-15%
Part no. rhd-6798419
BMW 1 3 4 Series F20 F21 F30 F31 F32 Brake Servo Unit Master Cylinder 6798419
Promo price
£18.95
£16.11
Free delivery: Jul 23
If paid before 14:00
-5%
Part no. 7620923
BMW F10 F20 F30 LCI Mini F56 Vacuum Brake Servo Non-Return Valve 7620923
Promo price
£13.95
£13.25
Free delivery: Jul 23
If paid before 14:00
Part no. 6788953
Mini Cooper One R55 R56 R60 R61 Brake Servo Unit Master Cylinder 6788953
£23.95
Free delivery: Jul 23
If paid before 14:00
-15%
Part no. 6770909
Mini Cooper One R56 Brake Servo Unit Master Cylinder Expansion Tank 6770909
Promo price
£28.95
£24.61
Free delivery: Jul 23
If paid before 14:00
-5%
Part no. A2024300014
Mercedes-Benz A W169 Brake Fluid Reservoir Screw Filler Tank Cap A2024300014
Promo price
£13.95
£13.25
Free delivery: Jul 23
If paid before 14:00
-5%
Part no. rhd-6761456-1
Mini Cooper One R50 R52 R53 Vacuum Pipe Brake Servo 6761456
Promo price
£13.95
£13.25
Free delivery: Jul 23
If paid before 14:00
-5%
Part no. 6851090
BMW F20 F21 F30 F31 F32 F80 F82 Brake Master Cylinder Reservoir Tank Cap 6851090
Promo price
£13.95
£13.25
Free delivery: Jul 23
If paid before 14:00
Part no. 6774622
BMW X5 E70 Brake Brakes Master Cylinder Servo Booster Unit 6774622
£61.95
Free delivery: Jul 23
If paid before 14:00
-40%
Part no. 6779742
BMW E60 E61 E63 E64 Brake Booster Master Cylinder Unit 6765937
Promo price
£47.95
£28.77
Free delivery: Jul 23
If paid before 14:00
-15%
Part no. rhd-6798419-1
BMW 1 3 4 Series 1 F20 F21 F30 F31 F32 Brake Servo Unit Master Cylinder 6798419
Promo price
£18.95
£16.11
Free delivery: Jul 23
If paid before 14:00
-15%
Part no. 6786583-1
BMW Mini Cooper One 1 R55 R56 R60 R61 Brake Servo Unit Master Cylinder 6786583
Promo price
£32.95
£28.01
Free delivery: Jul 23
If paid before 14:00
-40%
Part no. 6856290-1
BMW E90 LCI X1 E84 Z4 E89 Mini R55 R56 R60 Pressure Sensor Brake Servo 6856290
Promo price
£28.95
£17.37
Free delivery: Jul 23
If paid before 14:00
-15%
Part no. rhd-A2044301230
Mercedes C E W204 W207 Brake Booster Servo Master Cylinder A2044301230
Promo price
£47.95
£40.76
Free delivery: Jul 23
If paid before 14:00
-15%
Part no. 6863499
Mini R55 R56 R60 R61 Brake Servo Braking Unit Master Cylinder 6863499
Promo price
£23.95
£20.36
Free delivery: Jul 23
If paid before 14:00
-40%
Part no. rhd-6785647-1
BMW 1 3 Series 1 E81 E90 E91 E92 LCI Brake Servo Unit Master Cylinder 6785647
Promo price
£27.95
£16.77
Free delivery: Jul 23
If paid before 14:00
-40%
Part no. 6778723
BMW Mini One R50 R52 Brake Servo Unit Master Cylinder Expansion Tank 6778723
Promo price
£47.95
£28.77
Free delivery: Jul 23
If paid before 14:00
-5%
Part no. 6854640
BMW Mini Cooper One F55 F56 F57 Brake Servo Unit Master Cylinder 6854640
Promo price
£13.95
£13.25
Free delivery: Jul 23
If paid before 14:00
-5%
Part no. 8513331
Mini Cooper One F55 F56 Engine Vacuum Pipe Hose Line Brake Servo 8513331
Promo price
£13.95
£13.25
Free delivery: Jul 23
If paid before 14:00
-5%
Part no. 6774451
BMW E87 E90 E92 Brake Master Cylinder Reservoir Cap Warning Switch 6774451
Promo price
£13.95
£13.25
Free delivery: Jul 23
If paid before 14:00
-40%
Part no. A0014300108
Brake Servo Mercedes W639 Brake Booster Unit Master Cylinder A0014300108
Promo price
£28.95
£17.37
Free delivery: Jul 23
If paid before 14:00
-40%
Part no. rhd-6798425-1
Brake Servo Unit BMW F20 F21 F22 F30 F31 M Sport Brake Master Cylinder 6798425
Promo price
£23.95
£14.37
Free delivery: Jul 23
If paid before 14:00
-5%
Part no. 6761453
Mini Cooper R50 R52 Brake Servo Vacuum Hose Pipe 6761453
Promo price
£13.95
£13.25
Free delivery: Jul 23
If paid before 14:00
Part no. 3450589-1
BMW X3 E83 Brake Servo Unit Master Cylinder 293403547061 3403547
£28.95
Free delivery: Jul 23
If paid before 14:00
-40%
Part no. rhd-A9064301408
Mercedes Sprinter W906 Brake Servo Booster Master Cylinder Unit A9064301408
Promo price
£75.95
£45.57
Free delivery: Jul 23
If paid before 14:00
-15%
Part no. 6863498
Mini Cooper R55 R56 R57 R60 Brake Servo Unit Master Cylinder 6863498
Promo price
£28.95
£24.61
Free delivery: Jul 23
If paid before 14:00
Part no. rhd-1K2614105AR
Audi A3 8P Brake Servo Booster Master Cylinder Unit 1K2614105AR
£37.95
Free delivery: Jul 23
If paid before 14:00
-40%
Part no. 6769850
BMW Z4 E85 Roadster Servo Brake Unit Master Cylinder 6769850
Promo price
£37.95
£22.77
Free delivery: Jul 23
If paid before 14:00
-15%
Part no. 8K0612103M
Audi S5 8T Brake Servo Master Cylinder Vacuum Booster 8K0612103M 8K0 612 107 C
Promo price
£28.95
£24.61
Free delivery: Jul 23
If paid before 14:00
-15%
Part no. rhd-A9064301408-1
Mercedes Sprinter W906 Brake Servo Booster Master Cylinder Unit A9064301408
Promo price
£56.95
£48.41
Free delivery: Jul 23
If paid before 14:00
-15%
Part no. rhd-8678618
BMW 1 3 E81 E87 E90 E91 E92 N43 N47 Brake Servo Unit Vacuum Pipe Hose 8678618
Promo price
£18.95
£16.11
Free delivery: Jul 23
If paid before 14:00
-15%
Part no. rhd-A6394300408
Brake Servo Unit Mercedes Vito W639 Brake Booster Master Cylinder A6394300408
Promo price
£56.95
£48.41
Free delivery: Jul 23
If paid before 14:00
-40%
Part no. rhd-6851096
BMW F20 F21 F22 F30 F31 F32 M Sport Brake Servo Unit Master Cylinder 6798425
Promo price
£32.95
£19.77
Free delivery: Jul 23
If paid before 14:00
-15%
Part no. RHD-5Q2614105BJ
Audi RS3 8V VW Golf Mk7 GTI Brake Servo Booster Master Cylinder 5Q2614105BJ
Promo price
£47.95
£40.76
Free delivery: Jul 23
If paid before 14:00
-40%
Part no. 4086790
Mini Cooper One R55 R56 R60 R61 Brake Servo Unit Master Cylinder 4086790
Promo price
£32.95
£19.77
Free delivery: Jul 23
If paid before 14:00
-15%
Part no. rhd-A1664301130
Mercedes W166 Brake Servo Booster Master Cylinder Module A1664301330
Promo price
£94.95
£80.71
Free delivery: Jul 23
If paid before 14:00
-5%
Part no. rhd-A2464300930
Mercedes-Benz A B W176 W246 Brake Servo Booster Master Cylinder A2464301330
Promo price
£13.95
£13.25
Free delivery: Jul 23
If paid before 14:00
-40%
Part no. 6770606
Mini Cooper R56 Brake Servo Unit Master Cylinder 6770606
Promo price
£47.95
£28.77
Free delivery: Jul 23
If paid before 14:00
Part no. rhd-A6394300208
Brake Servo Unit Mercedes Vito W639 Brake Booster Master Cylinder A6394300208
£47.95
Free delivery: Jul 23
If paid before 14:00
-15%
Part no. RHD-8J2614105N
Audi TT 8J Master Cylinder Brake Booster Servo Reservoir 8J2614105N
Promo price
£32.95
£28.01
Free delivery: Jul 23
If paid before 14:00
-15%
Part no. 6854640-1
Mini Cooper One F55 F56 F57 Brake Servo Unit Master Cylinder 6854640
Promo price
£18.95
£16.11
Free delivery: Jul 23
If paid before 14:00
-15%
Part no. rhd-7547579
BMW Z4 Series E85 2.0i N46 Vacuum Hose Line Pipe Servo Brake 7547579
Promo price
£18.95
£16.11
Free delivery: Jul 23
If paid before 14:00
-5%
Part no. RHD-A2464300929
Vacuum Pipe Mercedes W176 W246 Line Hose Brake Booster Servo A2464300929
Promo price
£13.95
£13.25
Free delivery: Jul 23
If paid before 14:00
-40%
Part no. rhd-7849876
BMW 3 4 Series F30 LCI F32 F80 M3 F82 Brake Servo Unit Master Cylinder 2284896
Promo price
£56.95
£34.17
Free delivery: Jul 23
If paid before 14:00
-15%
Part no. 8K0612103N
Audi A5 8T 2.0 TDI CNHA Brake Servo 8K0612103N
Promo price
£28.95
£24.61
Free delivery: Jul 23
If paid before 14:00
-40%
Part no. A9064300408
Mercedes Sprinter W906 Brake Servo Booster Master Cylinder Unit A9064300408
Promo price
£23.95
£14.37
Free delivery: Jul 23
If paid before 14:00
-15%
Part no. A0009055204
Mercedes W177 W205 W213 Pressure Sensor Brake Booster Vacuum Servo A0009055204
Promo price
£18.95
£16.11
Free delivery: Jul 23
If paid before 14:00
-40%
Part no. 6798423
Brake Servo Unit BMW F20 F21 F22 F30 F31 Master Cylinder 6798423
Promo price
£32.95
£19.77
Free delivery: Jul 23
If paid before 14:00
-40%
Part no. 7500299-1
BMW Z4 Series E85 Brake Servo Vacuum Hose Pipe 6759932
Promo price
£23.95
£14.37
Free delivery: Jul 23
If paid before 14:00
-40%
Part no. rhd-A1714300330
Mercedes SLK R171 Brake Servo Brake Master Cylinder Booster A1714300330
Promo price
£47.95
£28.77
Free delivery: Jul 23
If paid before 14:00
Part no. 8E0612105AG
Audi A4 B7 A6 B5 Servo Master Cylinder Brake Braking Booster Unit 8E0612105AG
£37.95
Free delivery: Jul 23
If paid before 14:00
Part no. rhd-A2044303230
Brake Servo Mercedes W204 C 63 AMG Brake Master Cylinder Booster A2044303230
£28.95
Free delivery: Jul 23
If paid before 14:00
-15%
Part no. 2753129
Mini Cooper D R55 R56 W16 Diesel Power Brake Vacuum Pipe Hose 2753129
Promo price
£28.95
£24.61
Free delivery: Jul 23
If paid before 14:00
-5%
Part no. 6796726
Servo Cylinder BMW F10 F11 Brake Booster Master Unit 6796726
Promo price
£13.95
£13.25
Free delivery: Jul 23
If paid before 14:00
-40%
Part no. 6851099
Brake Servo BMW F30 F31 F32 F33 Unit Master Cylinder 6851099 4081079
Promo price
£28.95
£17.37
Free delivery: Jul 23
If paid before 14:00
-15%
Part no. rhd-A2044305029
Vacuum Pipe Mercedes W204 S204 C207 Line Hose Brake Servo Unit A2044305029
Promo price
£18.95
£16.11
Free delivery: Jul 23
If paid before 14:00
-5%
Part no. A0009051001
Mercedes W213 S213 Pressure Sensor Brake Booster Vacuum Servo A0009051001
Promo price
£13.95
£13.25
Free delivery: Jul 23
If paid before 14:00
-40%
Part no. rhd-A0054306430
Mercedes SLK R171 Brake Servo Brake Master Cylinder Booster A0054306430
Promo price
£37.95
£22.77
Free delivery: Jul 23
If paid before 14:00
-15%
Part no. 6854640-2
Brake Servo Unit Mini F55 F56 F57 Braking Unit Master Cylinder 6854640
Promo price
£28.95
£24.61
Free delivery: Jul 23
If paid before 14:00
-40%
Part no. 6873440
BMW F45 X1 F48 Brake Servo Unit Master Cylinder 6872076 Automatic
Promo price
£42.95
£25.77
Free delivery: Jul 23
If paid before 14:00
-40%
Part no. rhd-A1714300130
Mercedes SLK R171 Brake Servo Brake Master Cylinder Booster A1714300130
Promo price
£47.95
£28.77
Free delivery: Jul 23
If paid before 14:00
-40%
Part no. A0009051701
Mercedes W205 X253 Pressure Sensor Brake Booster A0009051701
Promo price
£23.95
£14.37
Free delivery: Jul 23
If paid before 14:00
-15%
Part no. 8W0612103K
Brake Servo Audi A4 B9 A5 F5 Braking Unit Master Cylinder Booster 8W0612107
Promo price
£56.95
£48.41
Free delivery: Jul 23
If paid before 14:00
-40%
Part no. rhd-A2124302330
Mercedes W212 Brake Servo Booster Master Cylinder Unit A2124302330
Promo price
£37.95
£22.77
Free delivery: Jul 23
If paid before 14:00
-40%
Part no. A4474310200
Mercedes Vito W447 Brake Servo Booster Master Cylinder Braking Unit A4474300208
Promo price
£142.95
£85.77
Free delivery: Jul 23
If paid before 14:00
-40%
Part no. 51928238
Citroen Relay Fiat Ducato Brake Servo Booster Master Cylinder 51928238
Promo price
£28.95
£17.37
Free delivery: Jul 23
If paid before 14:00
-5%
Part no. rhd-A2464301129
Vacuum Hose Mercedes W176 W246 A B Class Brake Servo Pipe Line A2464301129
Promo price
£13.95
£13.25
Free delivery: Jul 23
If paid before 14:00
-40%
Part no. 6889231
Brake Servo BMW F40 F44 JCW Master Cylinder Brake Booster Unit 6883890
Promo price
£37.95
£22.77
Free delivery: Jul 23
If paid before 14:00
-15%
Part no. 6782289
BMW F10 F11 F13 F01 Brake Servo Fluid Expansion Tank Bottle Reservoir 6782289
Promo price
£18.95
£16.11
Free delivery: Jul 23
If paid before 14:00
Part no. RHD-7T162B195BB
Ford Transit Connect Mk2 Brake Booster Servo Master Cylinder 7T16-2B195-BB
£61.95
Free delivery: Jul 23
If paid before 14:00
-15%
Part no. 9C11-2B195-CB
Ford Transit MK7 2.2 TDCi Brake Servo Brake Booster Power Assist Master Cylinder
Promo price
£104.95
£89.21
Free delivery: Jul 23
If paid before 14:00
-40%
Part no. 8K0612103K
Audi S5 8T Brake Servo Master Cylinder Vacuum Booster 8K0612103K
Promo price
£23.95
£14.37
Free delivery: Jul 23
If paid before 14:00
-40%
Part no. rhd-A1664301130-1
Mercedes W166 Brake Servo Booster Master Cylinder Module A1664301330
Promo price
£94.95
£56.97
Free delivery: Jul 23
If paid before 14:00
-40%
Part no. rhd-A2464300930-2
Mercedes W176 W246 Brake Servo Booster Master Cylinder A2464301330
Promo price
£37.95
£22.77
Free delivery: Jul 23
If paid before 14:00
-40%
Part no. RHD-6873432
BMW F45 F46 Brake Servo Booster Unit Master Cylinder 6872077
Promo price
£23.95
£14.37
Free delivery: Jul 23
If paid before 14:00
Part no. RHD-7L6612101C
Volkswagen Touareg 7L Brake Servo Booster Master Cylinder 7L6612101C
£85.95
Free delivery: Jul 23
If paid before 14:00
-15%
Part no. 6889070
BMW X1 F48 Brake Servo Booster Unit Master Cylinder 6889070
Promo price
£37.95
£32.26
Free delivery: Jul 23
If paid before 14:00
Part no. BK31-2B195-AH
Ford Transit Mk8 Brake Servo Booster Master Cylinder Unit BK31-2B195-AH
£80.95
Free delivery: Jul 23
If paid before 14:00
-5%
Part no. 6785916
BMW Z4 E89 Roadster Cabrio Brake Servo Unit Master Cylinder 6785916
Promo price
£13.95
£13.25
Free delivery: Jul 23
If paid before 14:00
-15%
Part no. RHD-5Q2614105AR
Audi A3 8V Brake Servo Booster Master Cylinder 5Q2614105AR
Promo price
£23.95
£20.36
Free delivery: Jul 23
If paid before 14:00
-40%
Part no. rhd-6799928
BMW i3 I01 Hybrid Electric Brake Booster Servo Unit Master Cylinder 6799928
Promo price
£56.95
£34.17
Free delivery: Jul 23
If paid before 14:00
-40%
Part no. A6540703132-1
Mercedes W213 OM654 Diesel Vacuum Pipe Line Hose Brake Booster Servo A6540703132
Promo price
£23.95
£14.37
Free delivery: Jul 23
If paid before 14:00
-15%
Part no. 8K0612103N-1
Audi A5 8T 2.0 TDI CNHA Brake Servo 8K0612103N
Promo price
£23.95
£20.36
Free delivery: Jul 23
If paid before 14:00
-5%
Part no. rhd-7598231
BMW 5 7 Series F01 LCI N57N F10 F11 N47N Vacuum Hose Line Pipe Servo Brake
Promo price
£13.95
£13.25
Free delivery: Jul 23
If paid before 14:00
-15%
Part no. RHD-5N2614105K
Audi Q3 8U 2.0 TFSI Brake Servo Master Cylinder Unit 5N2614105K
Promo price
£47.95
£40.76
Free delivery: Jul 23
If paid before 14:00
-5%
Part no. RHD-8K2611931N
Audi S5 8T MAP Pressure Brake Servo Vacuum Hose Pipe Line Sensor 8K2611931N
Promo price
£13.95
£13.25
Free delivery: Jul 23
If paid before 14:00
-15%
Part no. RHD-6R2614105D-1
Skoda Fabia Mk2 Brake Servo Booster Master Cylinder Braking Unit 6R2614105D
Promo price
£47.95
£40.76
Free delivery: Jul 23
If paid before 14:00
-15%
Part no. 7846664
Brake Servo BMW F10 M5 F13 F12 M6 Unit Master Cylinder Booster 2284395
Promo price
£94.95
£80.71
Free delivery: Jul 24 – 31
If paid before 14:00
-15%
Part no. 6786685
BMW F01 F02 F07 GT Brake Servo Booster Master Cylinder Unit Container 6786685
Promo price
£18.95
£16.11
Free delivery: Jul 23
If paid before 14:00
-40%
Part no. 6874524
Brake Servo BMW G30 G31 Master Cylinder Brake Booster Unit Module 6861210
Promo price
£66.95
£40.17
Free delivery: Jul 23
If paid before 14:00
-40%
Part no. 6871456
Brake Servo BMW X3 F25 Unit Master Cylinder Booster Diesel 6871456
Promo price
£42.95
£25.77
Free delivery: Jul 23
If paid before 14:00
-5%
Part no. RHD-4G2612103H
Brake Servo Audi A6 C7 A7 4G Booster Master Cylinder Unit 4G2612103H
Promo price
£13.95
£13.25
Free delivery: Jul 23
If paid before 14:00
-5%
Part no. RHD-A1694300330
Mercedes W169 W245 Brake Servo Booster Master Cylinder Unit A1694300330
Promo price
£13.95
£13.25
Free delivery: Jul 23
If paid before 14:00
-15%
Part no. BJ32-2B195-AC
Range Rover Evoque L538 Brake Servo Master Cylinder Brake Booster BJ32-2B195-AC
Promo price
£18.95
£16.11
Free delivery: Jul 23
If paid before 14:00
-40%
Part no. A2214302530
Mercedes W221 Brake Servo Brake Master Cylinder Booster Unit A2214302130
Promo price
£66.95
£40.17
Free delivery: Jul 23
If paid before 14:00
-40%
Part no. rhd-A1774308100
Brake Booster Mercedes CLA C118 Coupe Petrol OM282 Master Cylinder Reservoir
Promo price
£142.95
£85.77
Free delivery: Jul 23
If paid before 14:00
Brake boosters and force regulators for optimal pressure distribution
Optimal servos and braking force correctors
Brake boosters and brake force regulators are key components of the braking system that support its efficiency and improve driving safety. The brake booster increases braking force, reducing the effort required from the driver, while the brake force regulator optimizes the distribution of force to the vehicle's axles, preventing wheel lock-up. In the Global Parts automotive store, you will find a wide selection of used car parts, including brake boosters and brake force regulators, ideal for brands such as BMW, Audi, Mercedes, Volkswagen, Mini, and others.
Construction and purpose of brake boosters and brake force regulators – definition and operating principle
A brake booster (vacuum booster) is a component of the brake assist system that uses pressure differences—most commonly vacuum generated by the engine or a vacuum pump—to increase the pressure applied to the brake master cylinder. In practice, this means the driver can generate 3–5 times more braking force with the same pedal pressure. Standard boosters have a diameter of 7 to 11 inches, which directly affects the level of assistance. A brake force regulator is a rear-axle pressure regulator responsible for dynamically adjusting pressure in the rear circuit based on the vehicle's load. In vehicles without an electronic EBD system, it operates mechanically or hydraulically, limiting pressure to the rear wheels during sudden braking. This helps maintain driving stability and proper traction. In modern designs, such as in BMW 3 Series, Audi A4, or Volkswagen Passat models, the function of a classic regulator is often supported by an ABS/EBD system, although the regulator itself remains responsible for the base calibration of braking force distribution.
Characteristics of brake boosters and brake force regulators
Brake boosters and brake force regulators are components installed within the braking system, usually between the brake pedal and the master cylinder or in the hydraulic circuit of the rear axle. A booster typically consists of a housing, a diaphragm, a control valve, and a pushrod, while a regulator consists of a body, pressure channels, and a regulating element. These parts serve to reduce the force required on the pedal and to maintain the correct front-to-rear braking proportions.
What functions do brake boosters and brake force regulators perform?
Brake boosters and brake force regulators play essential roles in the braking system:
- Increasing braking force – The booster amplifies the pressure on the brake pedal, which facilitates effective braking.
- Optimizing braking force distribution – The brake force regulator prevents rear-axle wheel lock-up, especially in low-traction conditions.
- Improving driving comfort – Thanks to the smooth operation of the braking system, driving becomes more comfortable and safer.
Comparison of construction and application of components
| Component | Main function | Cooperating area | What to check before selection |
|---|---|---|---|
| Brake booster | Assisting pressure on the master cylinder | Brake pedal, master cylinder, vacuum line | Diameter, mounting type, pushrod length, compatibility with the master cylinder |
| Brake force regulator | Regulating pressure in the rear axle circuit | Brake lines, rear axle, suspension components | Line layout, adjustment method, body and load version |
| Set with master cylinder | Transmitting and amplifying force and generating pressure | Booster, master cylinder, fluid reservoir | OEM number, mounting spacing, circuit type, and equipment compatibility |
Technical parameters and compatibility with the braking system
In practice, the compatibility of a brake booster and brake force regulator with the vehicle depends on several technical parameters:
- booster diameter (e.g., 8", 9", 10"),
- type of mounting to the firewall,
- length of the pushrod interacting with the master cylinder,
- type of master cylinder (single- or dual-circuit),
- type of system (ABS / ABS + EBD / non-ABS).
Example operating parameters
| Component | Function | Typical parameters | Impact on safety |
|---|---|---|---|
| Brake booster | Assisting pressure force | Vacuum 0.6–0.9 bar, diameter 7–11" | Shortening braking distance by several meters at 100 km/h |
| Brake force regulator | Rear axle pressure regulation | Proportional pressure reduction as load increases | Driving stability and slip limitation |
Properly matching these components to the vehicle model directly affects braking efficiency, even wear of pads and discs, and optimal operation of the entire hydraulic system.
Selection by OEM number and system version
The selection of these parts should take into account the OEM part number, interchangeable numbers, body type, and vehicle equipment. The brake booster must match in diameter, mounting point, and pushrod length, while the regulator must match the routing of the lines and the adjustment method. For parts such as a BMW E46 brake booster, it is also worth comparing the master cylinder version and the presence of cooperating systems, such as brake master cylinders.
Why is it worth taking care of brake boosters and brake force regulators?
Malfunction of brake boosters and brake force regulators can lead to reduced braking efficiency and increased risk on the road. Typical symptoms of failure include:
- Hard brake pedal – May indicate a failure of the brake booster.
- Uneven braking – Problems with the brake force regulator can cause excessive braking on one axle.
- Noises during braking – A damaged booster or regulator can generate unusual sounds. If replacement is necessary, at Global Parts you will find suitable used car parts that will restore the full efficiency of the braking system.
Braking system operation procedure – step by step
- The driver presses the brake pedal.
- The booster uses vacuum to increase the pressure on the master cylinder.
- The master cylinder generates hydraulic pressure in the brake lines.
- The brake force regulator adjusts the pressure proportion between the front and rear axles.
- Calipers press the pads against the discs, generating friction and reducing vehicle speed. In a properly functioning system, the braking force distribution is on average about 60–70% front / 30–40% rear, which ensures stability and optimal use of tire grip.
Cooperating elements and typical inspection points
The vacuum port, booster hose, pedal pushrod, and brake hoses, lines, and connectors are elements that directly affect the proper operation of assistance and pressure regulation. The booster seal is a detail responsible for the tightness of the connection and maintaining the proper operating conditions of the vacuum system. If you are looking for a component such as a booster seal, check the seating diameter, the condition of the contact surface, and compatibility with the booster housing.
How to choose the right brake boosters and brake force regulators?
When choosing brake boosters and brake force regulators, pay attention to several key aspects:
- Compatibility with the vehicle model – Every braking system has its specific technical requirements. At Global Parts, you will find brake boosters and brake force regulators perfectly matched to BMW, Audi, Mercedes, Volkswagen, Mini, and others.
- Technical condition – Used parts should be free from leaks, mechanical damage, and defects in pneumatic systems.
- Compatibility with the braking system – Ensure that the selected components are consistent with the design and specification of your vehicle.
Matching, OEM, VIN, and integration with other components
The selection of a brake booster and brake force regulator should take into account structural compatibility with the master cylinder, brake lines, and the ABS system. In practice, matching is done based on the model, year, engine version, and the vehicle's VIN. These elements work directly with:
- the master cylinder,
- the brake fluid reservoir,
- the ABS/ESP module,
- brake calipers and wheel cylinders. Proper compatibility ensures not only safety but also savings in operating costs – the correct pressure distribution reduces uneven wear of friction elements and improves the durability of the entire system.
Practical selection of parts for specific car versions
When looking for parts for a specific model, for example, a BMW E46, it is good to verify the OEM number, booster diameter, line layout, and how it works with the ABS and ESP system. Such verification is especially important when the car was produced in several engine variants and with different braking equipment. Additionally, the guide How to extend the life of used car parts? may be helpful, as it provides tips on how to assess the condition and usage of components.
Why is it worth choosing used brake boosters and brake force regulators?
Used car parts, such as brake boosters and brake force regulators, are a practical solution that allows for savings while maintaining high quality. By choosing used braking system components, you gain:
- Lower costs – Used components are significantly cheaper than new ones but offer equally high quality.
- Ecology – Recycling parts supports environmental protection and reduces waste.
- Wide offer – In our store, you will find used brake boosters and brake force regulators for many car brands.
How to take care of brake boosters and brake force regulators?
To ensure brake boosters and brake force regulators work reliably for a long time, it is worth following a few rules:
- Regular inspections – Check the condition of braking system components during periodic technical inspections.
- Maintain the correct brake fluid level – Low fluid levels can lead to damage to the booster and other components.
- Respond to symptoms of failure – Noises, uneven braking, or problems with the brake pedal are signals that faulty parts should be replaced.
FAQ
| Question | Answer |
|---|---|
| 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. |
Summary: brake boosters and brake force regulators at the Global Parts automotive store
Brake boosters and brake force regulators are essential braking system components that increase braking efficiency and precision. The Global Parts offer includes used components matched to many versions of cars from brands such as BMW, Mercedes, Mini, and others, taking into account data such as brand, condition, OEM part number, and interchangeable numbers. We invite you to contact us – we are here to help! For more information and interesting facts, we also invite you to visit our automotive blog.