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.

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BMW 1 3 SERIES E81 E87 E90 E90N E91 E92 E93 Brake Servo Unit 6775930

Part no. rhd-6775930

BMW 1 3 SERIES E81 E87 E90 E90N E91 E92 E93 Brake Servo Unit 6775930

£23.95

Free delivery: Mar 19

If paid before 14:00

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BMW E81 E87 E90 E91 Brake Servo Master Cylinder Brake Booster Unit 6788042

Part no. 6788042

BMW E81 E87 E90 E91 Brake Servo Master Cylinder Brake Booster Unit 6788042

£13.95

Free delivery: Mar 19

If paid before 14:00

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Mini R50 Brake Servo Unit Brake Master Cylinder 6757181

Part no. 6757181

Mini R50 Brake Servo Unit Brake Master Cylinder 6757181

£23.95

Free delivery: Mar 19

If paid before 14:00

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BMW 1 3 X1 Series E81 E84 E87 E90 E91 E92 E93 Brake Servo Vacuum Pipe

Part no. rhd-7577337

BMW 1 3 X1 Series E81 E84 E87 E90 E91 E92 E93 Brake Servo Vacuum Pipe

£13.95

Free delivery: Mar 19

If paid before 14:00

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BMW 1 3 4 Series F20 F21 F30 F31 F32 Brake Servo Unit Master Cylinder 6798419

Part no. rhd-6798419

BMW 1 3 4 Series F20 F21 F30 F31 F32 Brake Servo Unit Master Cylinder 6798419

£18.95

Free delivery: Mar 19

If paid before 14:00

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BMW 1 3 Series E81 E87 E90 E91 Brake Servo Unit Master Cylinder 6785645

Part no. rhd-6785645-1

BMW 1 3 Series E81 E87 E90 E91 Brake Servo Unit Master Cylinder 6785645

£18.95

Free delivery: Mar 19

If paid before 14:00

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Mini Cooper One R55 R56 R60 R61 Brake Servo Unit Master Cylinder 6788953

Part no. 6788953

Mini Cooper One R55 R56 R60 R61 Brake Servo Unit Master Cylinder 6788953

£23.95

Free delivery: Mar 19

If paid before 14:00

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BMW E60 E61 E63 E64 Brake Booster Master Cylinder Unit 6765937

Part no. 6765937-1

BMW E60 E61 E63 E64 Brake Booster Master Cylinder Unit 6765937

£47.95

Free delivery: Mar 19

If paid before 14:00

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Mini Cooper One R56 Brake Servo Unit Master Cylinder Expansion Tank 6770909

Part no. 6770909

Mini Cooper One R56 Brake Servo Unit Master Cylinder Expansion Tank 6770909

£28.95

Free delivery: Mar 19

If paid before 14:00

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Mercedes-Benz A W169 Brake Fluid Reservoir Screw Filler Tank Cap A2024300014

Part no. A2024300014

Mercedes-Benz A W169 Brake Fluid Reservoir Screw Filler Tank Cap A2024300014

£13.95

Free delivery: Mar 19

If paid before 14:00

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Mini Cooper One R50 R52 R53 Vacuum Pipe Brake Servo 6761456

Part no. rhd-6761456-1

Mini Cooper One R50 R52 R53 Vacuum Pipe Brake Servo 6761456

£13.95

Free delivery: Mar 19

If paid before 14:00

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BMW F20 F21 F30 F31 F32 F80 F82 Brake Master Cylinder Reservoir Tank Cap 6851090

Part no. 6851090

BMW F20 F21 F30 F31 F32 F80 F82 Brake Master Cylinder Reservoir Tank Cap 6851090

£13.95

Free delivery: Mar 19

If paid before 14:00

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BMW X5 E70 Brake Brakes Master Cylinder Servo Booster Unit 6774622

Part no. 6774622

BMW X5 E70 Brake Brakes Master Cylinder Servo Booster Unit 6774622

£61.95

Free delivery: Mar 19

If paid before 14:00

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BMW X5 E53 Power Brake Servo Unit Master Cylinder 6757706

Part no. 6757706

BMW X5 E53 Power Brake Servo Unit Master Cylinder 6757706

£37.95

Free delivery: Mar 19

If paid before 14:00

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BMW X5 X6 E70 E71 Brake Servo Unit Master Cylinder 6791410 6791409

Part no. 6791410

BMW X5 X6 E70 E71 Brake Servo Unit Master Cylinder 6791410 6791409

£66.95

Free delivery: Mar 19

If paid before 14:00

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Brake Servo Mercedes W212 E-Class Booster Unit Master Cylinder A2124301230

Part no. rhd-A2124301230

Brake Servo Mercedes W212 E-Class Booster Unit Master Cylinder A2124301230

£85.95

Free delivery: Mar 19

If paid before 14:00

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BMW E90 LCI X1 E84 Z4 E89 Mini R55 R56 R60 Pressure Sensor Brake Servo 6856290

Part no. 6856290-1

BMW E90 LCI X1 E84 Z4 E89 Mini R55 R56 R60 Pressure Sensor Brake Servo 6856290

£28.95

Free delivery: Mar 19

If paid before 14:00

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BMW Mini Cooper One 1 R55 R56 R60 R61 Brake Servo Unit Master Cylinder 6786583

Part no. 6786583-1

BMW Mini Cooper One 1 R55 R56 R60 R61 Brake Servo Unit Master Cylinder 6786583

£32.95

Free delivery: Mar 19

If paid before 14:00

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Brake Servo BMW X3 E83 Unit Master Cylinder 3403547

Part no. 3450589

Brake Servo BMW X3 E83 Unit Master Cylinder 3403547

£32.95

Free delivery: Mar 19

If paid before 14:00

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Audi A3 8P Brake Servo Booster Master Cylinder 1K2614105AT

Part no. rhd-1K2614105AT

Audi A3 8P Brake Servo Booster Master Cylinder 1K2614105AT

£23.95

Free delivery: Mar 19

If paid before 14:00

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BMW 1 3 4 Series 1 F20 F21 F30 F31 F32 Brake Servo Unit Master Cylinder 6798419

Part no. rhd-6798419-1

BMW 1 3 4 Series 1 F20 F21 F30 F31 F32 Brake Servo Unit Master Cylinder 6798419

£18.95

Free delivery: Mar 19

If paid before 14:00

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Mini R55 R56 R60 R61 Brake Servo Braking Unit Master Cylinder 6863499

Part no. 6863499

Mini R55 R56 R60 R61 Brake Servo Braking Unit Master Cylinder 6863499

£23.95

Free delivery: Mar 19

If paid before 14:00

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BMW 3 Series E92 E93 320i N43 Brake Servo Unit Master Cylinder 6775932

Part no. rhd-6775932-1

BMW 3 Series E92 E93 320i N43 Brake Servo Unit Master Cylinder 6775932

£28.95

Free delivery: Mar 19

If paid before 14:00

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BMW Mini One R50 R52 Brake Servo Unit Master Cylinder Expansion Tank 6778723

Part no. 6778723

BMW Mini One R50 R52 Brake Servo Unit Master Cylinder Expansion Tank 6778723

£47.95

Free delivery: Mar 19

If paid before 14:00

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

Part no. 6786556-1

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

£47.95

Free delivery: Mar 19

If paid before 14:00

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Mercedes-Benz Sprinter W906 Brake Booster Servo Master Cylinder A9064300308

Part no. rhd-A0004311927

Mercedes-Benz Sprinter W906 Brake Booster Servo Master Cylinder A9064300308

£47.95

Free delivery: Mar 19

If paid before 14:00

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Mini Cooper One F55 F56 Engine Vacuum Pipe Hose Line Brake Servo 8513331

Part no. 8513331

Mini Cooper One F55 F56 Engine Vacuum Pipe Hose Line Brake Servo 8513331

£13.95

Free delivery: Mar 19

If paid before 14:00

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Brake Servo Mercedes W207 A207 C207 Booster Master Cylinder A2074300130

Part no. rhd-A2074300130

Brake Servo Mercedes W207 A207 C207 Booster Master Cylinder A2074300130

£56.95

Free delivery: Mar 19

If paid before 14:00

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

Part no. 6778826-1

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

£42.95

Free delivery: Mar 19

If paid before 14:00

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Mini Cooper One R55 R56 R57 Brake Master Cylinder Reservoir Tank Cap 6770607

Part no. 6770607

Mini Cooper One R55 R56 R57 Brake Master Cylinder Reservoir Tank Cap 6770607

Product currently unavailable

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BMW 1 3 4 Series F20 F21 F30 F31 F32 Brake Servo Unit Master Cylinder 4081077

Part no. rhd-4081077

BMW 1 3 4 Series F20 F21 F30 F31 F32 Brake Servo Unit Master Cylinder 4081077

£16.95

Free delivery: Mar 19

If paid before 14:00

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X1 E84 6775930

Part no. rhd-6775930-1

X1 E84 6775930

£23.95

Free delivery: Mar 19

If paid before 14:00

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BMW Mini Cooper One F55 F56 F57 Brake Servo Unit Master Cylinder 6854640

Part no. 6854640

BMW Mini Cooper One F55 F56 F57 Brake Servo Unit Master Cylinder 6854640

£13.95

Free delivery: Mar 19

If paid before 14:00

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Brake Servo Unit BMW F20 F21 F22 F30 F31 M Sport Brake Master Cylinder 6798425

Part no. rhd-6798425-1

Brake Servo Unit BMW F20 F21 F22 F30 F31 M Sport Brake Master Cylinder 6798425

£23.95

Free delivery: Mar 19

If paid before 14:00

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Brake Servo Mercedes Sprinter W907 W910 Booster Master Cylinder Unit A9104300000

Part no. A9104310900-1

Brake Servo Mercedes Sprinter W907 W910 Booster Master Cylinder Unit A9104300000

£113.95

Free delivery: Mar 19

If paid before 14:00

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Mini Cooper R50 R52 Brake Servo Vacuum Hose Pipe 6761453

Part no. 6761453

Mini Cooper R50 R52 Brake Servo Vacuum Hose Pipe 6761453

£13.95

Free delivery: Mar 19

If paid before 14:00

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BMW X3 E83 Brake Servo Unit Master Cylinder 293403547061 3403547

Part no. 3450589-1

BMW X3 E83 Brake Servo Unit Master Cylinder 293403547061 3403547

£28.95

Free delivery: Mar 19

If paid before 14:00

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BMW 1 3 SERIES E81 E87 E90 E91 E92 LCI Brake Servo Unit Master Cylinder 6775932

Part no. rhd-6775932-2

BMW 1 3 SERIES E81 E87 E90 E91 E92 LCI Brake Servo Unit Master Cylinder 6775932

£28.95

Free delivery: Mar 19

If paid before 14:00

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

Part no. 8K0612103M-1

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

£42.95

Free delivery: Mar 19

If paid before 14:00

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BMW Z4 E85 Roadster Servo Brake Unit Master Cylinder 6769850

Part no. 6769850

BMW Z4 E85 Roadster Servo Brake Unit Master Cylinder 6769850

£37.95

Free delivery: Mar 19

If paid before 14:00

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Mercedes ML W164 Brake Servo Brake Master Cylinder Booster Unit A1644301530

Part no. A1644310627

Mercedes ML W164 Brake Servo Brake Master Cylinder Booster Unit A1644301530

£42.95

Free delivery: Mar 19

If paid before 14:00

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BMW 1 3 E81 E87 E90 E91 E92 N43 N47 Brake Servo Unit Vacuum Pipe Hose 8678618

Part no. rhd-8678618

BMW 1 3 E81 E87 E90 E91 E92 N43 N47 Brake Servo Unit Vacuum Pipe Hose 8678618

£18.95

Free delivery: Mar 19

If paid before 14:00

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Audi S5 8T Brake Servo Master Cylinder Vacuum Booster 8K0612103M  8K0 612 107 C

Part no. 8K0612103M

Audi S5 8T Brake Servo Master Cylinder Vacuum Booster 8K0612103M 8K0 612 107 C

£28.95

Free delivery: Mar 19

If paid before 14:00

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Mercedes W205 Brake Servo Booster Master Cylinder Module A2054300130

Part no. rhd-A2054300130

Mercedes W205 Brake Servo Booster Master Cylinder Module A2054300130

£18.95

Free delivery: Mar 19

If paid before 14:00

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Brake Servo Unit BMW F30 LCI F87 M2 F80 M3 Brake Master Cylinder 7849876 2284896

Part no. 7849876

Brake Servo Unit BMW F30 LCI F87 M2 F80 M3 Brake Master Cylinder 7849876 2284896

£47.95

Free delivery: Mar 19

If paid before 14:00

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Mini Cooper R55 R56 R57 R60 Brake Servo Unit Master Cylinder 6863498

Part no. 6863498

Mini Cooper R55 R56 R57 R60 Brake Servo Unit Master Cylinder 6863498

£28.95

Free delivery: Mar 19

If paid before 14:00

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

Part no. 8K0612103E

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

£37.95

Free delivery: Mar 19

If paid before 14:00

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Mini Cooper R56 Brake Servo Unit Master Cylinder 6770606

Part no. 6770606

Mini Cooper R56 Brake Servo Unit Master Cylinder 6770606

£47.95

Free delivery: Mar 19

If paid before 14:00

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Mercedes-Benz A B Class W169 W245 Brake Servo Master Cylinder A1694300330

Part no. A1694301230

Mercedes-Benz A B Class W169 W245 Brake Servo Master Cylinder A1694300330

£13.95

Free delivery: Mar 19

If paid before 14:00

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BMW F20 F21 F22 F30 F31 F32 M Sport Brake Servo Unit Master Cylinder 6798425

Part no. rhd-6851096

BMW F20 F21 F22 F30 F31 F32 M Sport Brake Servo Unit Master Cylinder 6798425

£32.95

Free delivery: Mar 19

If paid before 14:00

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BMW 7 Series E65 E66 Power Braking Servo Unit Master Cylinder 6769213

Part no. 6769213

BMW 7 Series E65 E66 Power Braking Servo Unit Master Cylinder 6769213

£42.95

Free delivery: Mar 19

If paid before 14:00

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BMW Z4 Series E85 2.0i N46 Vacuum Hose Line Pipe Servo Brake 7547579

Part no. rhd-7547579

BMW Z4 Series E85 2.0i N46 Vacuum Hose Line Pipe Servo Brake 7547579

£18.95

Free delivery: Mar 19

If paid before 14:00

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Mercedes W166 Brake Servo Booster Master Cylinder Module A1664301330

Part no. rhd-A1664301130

Mercedes W166 Brake Servo Booster Master Cylinder Module A1664301330

£94.95

Free delivery: Mar 19

If paid before 14:00

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BMW 5 6 Series E60 E61 E63 E64 N62 N62N Vacuum Pipe Hose Line 7611335

Part no. rhd-7610750

BMW 5 6 Series E60 E61 E63 E64 N62 N62N Vacuum Pipe Hose Line 7611335

£18.95

Free delivery: Mar 19

If paid before 14:00

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Audi RS3 8V VW Golf Mk7 GTI Brake Servo Booster Master Cylinder 5Q2614105BJ

Part no. RHD-5Q2614105BJ

Audi RS3 8V VW Golf Mk7 GTI Brake Servo Booster Master Cylinder 5Q2614105BJ

£47.95

Free delivery: Mar 19

If paid before 14:00

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BMW 3 4 Series F30 LCI F32 F80 M3 F82 Brake Servo Unit Master Cylinder 2284896

Part no. rhd-7849876

BMW 3 4 Series F30 LCI F32 F80 M3 F82 Brake Servo Unit Master Cylinder 2284896

£56.95

Free delivery: Mar 19

If paid before 14:00

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Mercedes Vito Viano W639 Brake Servo Booster Unit Master Cylinder A0014300108

Part no. RHD-A0014300108

Mercedes Vito Viano W639 Brake Servo Booster Unit Master Cylinder A0014300108

£28.95

Free delivery: Mar 19

If paid before 14:00

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Mini Cooper One F55 F56 F57 Brake Servo Unit Master Cylinder 6854640

Part no. 6854640-1

Mini Cooper One F55 F56 F57 Brake Servo Unit Master Cylinder 6854640

£18.95

Free delivery: Mar 19

If paid before 14:00

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Brake Servo Mercedes Sprinter W907 W910 Booster Master Cylinder Unit A9104300000

Part no. A9104310900

Brake Servo Mercedes Sprinter W907 W910 Booster Master Cylinder Unit A9104300000

£94.95

Free delivery: Mar 19

If paid before 14:00

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BMW F20 F21 F22 F30 F31 Brake Servo Unit Master Cylinder 6798423

Part no. 6798423-1

BMW F20 F21 F22 F30 F31 Brake Servo Unit Master Cylinder 6798423

£23.95

Free delivery: Mar 19

If paid before 14:00

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Mercedes-Benz A B W176 W246 Brake Servo Booster Master Cylinder A2464301330

Part no. rhd-A2464300930

Mercedes-Benz A B W176 W246 Brake Servo Booster Master Cylinder A2464301330

£13.95

Free delivery: Mar 19

If paid before 14:00

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Mercedes W177 W205 W213 Pressure Sensor Brake Booster Vacuum Servo A0009055204

Part no. A0009055204

Mercedes W177 W205 W213 Pressure Sensor Brake Booster Vacuum Servo A0009055204

£18.95

Free delivery: Mar 19

If paid before 14:00

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Mini Cooper F55 F56 F60 Vacuum Pipe Hose Line Brake Servo 8654731

Part no. RHD-8654731

Mini Cooper F55 F56 F60 Vacuum Pipe Hose Line Brake Servo 8654731

£18.95

Free delivery: Mar 19

If paid before 14:00

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BMW F10 F11 Brake Booster Master Cylinder Servo Unit 6796726

Part no. 6796726-1

BMW F10 F11 Brake Booster Master Cylinder Servo Unit 6796726

£18.95

Free delivery: Mar 19

If paid before 14:00

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BMW Z4 Series E85 Brake Servo Vacuum Hose Pipe 6759932

Part no. 7500299-1

BMW Z4 Series E85 Brake Servo Vacuum Hose Pipe 6759932

£23.95

Free delivery: Mar 19

If paid before 14:00

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Vacuum Pipe Mercedes W176 W246 Line Hose Brake Booster Servo A2464300929

Part no. rhd-A2464300929

Vacuum Pipe Mercedes W176 W246 Line Hose Brake Booster Servo A2464300929

£13.95

Free delivery: Mar 19

If paid before 14:00

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BMW 1 3 4 Series F20 F30 F32 Brake Servo Master Cylinder Container Reservoir

Part no. rhd-6851094

BMW 1 3 4 Series F20 F30 F32 Brake Servo Master Cylinder Container Reservoir

£13.95

Free delivery: Mar 19

If paid before 14:00

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Mercedes W176 W246 Brake Servo Booster Expansion Tank Cover Cap A2464300330

Part no. A2464300930-1

Mercedes W176 W246 Brake Servo Booster Expansion Tank Cover Cap A2464300330

£13.95

Free delivery: Mar 19

If paid before 14:00

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Servo Cylinder BMW F10 F11 Brake Booster Master Unit 6796726

Part no. 6796726

Servo Cylinder BMW F10 F11 Brake Booster Master Unit 6796726

£13.95

Free delivery: Mar 19

If paid before 14:00

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Brake Servo Unit BMW F20 F21 F22 F30 F31 Master Cylinder 6798423

Part no. 6798423

Brake Servo Unit BMW F20 F21 F22 F30 F31 Master Cylinder 6798423

£32.95

Free delivery: Mar 19

If paid before 14:00

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Audi A5 8T 2.0 TDI CNHA Brake Servo 8K0612103N

Part no. 8K0612103N

Audi A5 8T 2.0 TDI CNHA Brake Servo 8K0612103N

£28.95

Free delivery: Mar 19

If paid before 14:00

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Mercedes ML W164 Vacuum Pipe Line Hose Brake Servo Unit A1644300729

Part no. rhd-A1644302129

Mercedes ML W164 Vacuum Pipe Line Hose Brake Servo Unit A1644300729

£13.95

Free delivery: Mar 19

If paid before 14:00

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Vacuum Pipe Mercedes W204 S204 C207 Line Hose Brake Servo Unit A2044305029

Part no. rhd-A2044305029

Vacuum Pipe Mercedes W204 S204 C207 Line Hose Brake Servo Unit A2044305029

£18.95

Free delivery: Mar 19

If paid before 14:00

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Mercedes-Benz A B Class W169 W245 1 Brake Servo Master Cylinder A1694300330

Part no. rhd-A1694301230-1

Mercedes-Benz A B Class W169 W245 1 Brake Servo Master Cylinder A1694300330

£13.95

Free delivery: Mar 19

If paid before 14:00

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Mercedes Vito W447 Brake Servo Booster Master Cylinder Module A4474300208

Part no. rhd-A4474300208

Mercedes Vito W447 Brake Servo Booster Master Cylinder Module A4474300208

£47.95

Free delivery: Mar 19

If paid before 14:00

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Mercedes W164 W203 C209 Servo Travel Sensor Brake Pedal A1635401217

Part no. A1635401217

Mercedes W164 W203 C209 Servo Travel Sensor Brake Pedal A1635401217

£18.95

Free delivery: Mar 19

If paid before 14:00

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Mercedes SLK R171 Brake Servo Brake Master Cylinder Booster A1714300330

Part no. rhd-A1714300330

Mercedes SLK R171 Brake Servo Brake Master Cylinder Booster A1714300330

£47.95

Free delivery: Mar 19

If paid before 14:00

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

Part no. 2753129

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

£28.95

Free delivery: Mar 19

If paid before 14:00

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BMW F45 X1 F48 Brake Servo Unit Master Cylinder 6872076 Automatic

Part no. 6873440

BMW F45 X1 F48 Brake Servo Unit Master Cylinder 6872076 Automatic

£42.95

Free delivery: Mar 19

If paid before 14:00

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Mercedes SLK R171 Brake Servo Brake Master Cylinder Booster A1714300130

Part no. rhd-A1714300130

Mercedes SLK R171 Brake Servo Brake Master Cylinder Booster A1714300130

£47.95

Free delivery: Mar 19

If paid before 14:00

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Mercedes W212 Brake Servo Booster Master Cylinder Unit A2124302330

Part no. rhd-A2124302330

Mercedes W212 Brake Servo Booster Master Cylinder Unit A2124302330

£37.95

Free delivery: Mar 19

If paid before 14:00

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Ford Transit Mk8 Brake Booster Servo Unit Master Cylinder GK31-2B195-CB

Part no. GK31-2B195-CB

Ford Transit Mk8 Brake Booster Servo Unit Master Cylinder GK31-2B195-CB

£37.95

Free delivery: Mar 19

If paid before 14:00

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BMW F01 F02 Brake Servo Unit Master Cylinder 6790454 6786586 6782289

Part no. 6790454

BMW F01 F02 Brake Servo Unit Master Cylinder 6790454 6786586 6782289

£32.95

Free delivery: Mar 19

If paid before 14:00

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

Part no. 8K0612103E-2

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

£37.95

Free delivery: Mar 19

If paid before 14:00

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Brake Servo BMW F40 F44 JCW Master Cylinder Brake Booster Unit 6883890

Part no. 6889231

Brake Servo BMW F40 F44 JCW Master Cylinder Brake Booster Unit 6883890

£37.95

Free delivery: Mar 19

If paid before 14:00

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Mercedes W213 S213 Pressure Sensor Brake Booster Vacuum Servo A0009051001

Part no. A0009051001

Mercedes W213 S213 Pressure Sensor Brake Booster Vacuum Servo A0009051001

£13.95

Free delivery: Mar 19

If paid before 14:00

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Mercedes SLK R171 Brake Servo Brake Master Cylinder Booster A0054306430

Part no. rhd-A0054306430

Mercedes SLK R171 Brake Servo Brake Master Cylinder Booster A0054306430

£37.95

Free delivery: Mar 19

If paid before 14:00

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Mercedes W166 Brake Servo Booster Master Cylinder Module A1664301330

Part no. rhd-A1664301130-1

Mercedes W166 Brake Servo Booster Master Cylinder Module A1664301330

£94.95

Free delivery: Mar 19

If paid before 14:00

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Brake Servo Unit Mini F55 F56 F57 Braking Unit Master Cylinder 6854640

Part no. 6854640-2

Brake Servo Unit Mini F55 F56 F57 Braking Unit Master Cylinder 6854640

£28.95

Free delivery: Mar 19

If paid before 14:00

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Volkswagen VW Scirocco Mk3 Brake Servo Master Cylinder Booster Unit 1K2614105BA

Part no. RHD-1K2614105BA

Volkswagen VW Scirocco Mk3 Brake Servo Master Cylinder Booster Unit 1K2614105BA

£47.95

Free delivery: Mar 19

If paid before 14:00

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Mercedes W205 X253 Pressure Sensor Brake Booster A0009051701

Part no. A0009051701

Mercedes W205 X253 Pressure Sensor Brake Booster A0009051701

£23.95

Free delivery: Mar 19

If paid before 14:00

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BMW Z4 E89 Roadster Cabrio Brake Servo Unit Master Cylinder 6785916

Part no. 6785916

BMW Z4 E89 Roadster Cabrio Brake Servo Unit Master Cylinder 6785916

£13.95

Free delivery: Mar 19

If paid before 14:00

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£56.95

Free delivery: Mar 19

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Mercedes Vito W447 Brake Servo Booster Master Cylinder Braking Unit A4474300208

£142.95

Free delivery: Mar 19

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Mini Cooper R55 R56 R57 R60 Brake Servo Unit Master Cylinder 6863498

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Mercedes W205 Brake Servo Booster Master Cylinder Module A2384300100

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Brake boosters and force regulators for optimal pressure distribution

Brake boosters and force regulators for optimal pressure distribution

Optimal servos and braking force correctors

Brake servo and brake boosters are key components of the braking system, supporting its efficiency and improving driving safety. A brake booster increases braking power, reducing driver effort, while a brake booster optimizes the distribution of force across the vehicle's axles, preventing wheel lockup. At Global Parts, you'll find a wide selection of used car parts , including brake boosters and brake boosters, ideal for BMW , Audi , Mercedes , Volkswagen , Mini , and more .

What are servos and brake force correctors – definition and principle of operation

A brake booster (vacuum booster) is a component of a brake assist system that uses pressure differential (usually vacuum generated by the engine or a vacuum pump) to increase the force applied to the brake master cylinder. In practice, this means the driver can generate up to 3–5 times more braking power with the same pedal pressure. Standard servos range in diameter from 7 to 11 inches, which directly affects the power assist. The brake force regulator (rear axle pressure regulator) dynamically adjusts rear brake pressure based on vehicle load. In vehicles without electronic EBD, it operates mechanically or hydraulically, limiting pressure on the rear wheels during heavy braking. This maintains directional stability and traction. In modern designs (e.g. in the BMW 3 Series, Audi A4 or Volkswagen Passat models), the function of the classic equalizer is often supported by the ABS/EBD system, but the controller itself is still responsible for the basic calibration of the braking force distribution.

What are the functions of servos and braking force correctors ?

Servos and brake force regulators play important roles in the braking system:

  • Increased braking power – The servo increases the pressure on the brake pedal, which facilitates effective braking.
  • Optimised brake force distribution – Brake force regulator prevents the rear wheels from locking, especially in low grip conditions.
  • Improved driving comfort – Thanks to the smooth operation of the braking system, driving becomes more comfortable and safe.

Technical parameters and compatibility with the braking system

In practice, the compatibility of the servo and the brake force corrector depends on several technical parameters:

  • servo diameter (e.g. 8", 9", 10"),
  • type of attachment to the front bulkhead,
  • length of the pin cooperating with the brake master cylinder,
  • pump type (1- or 2-circuit),
  • type of system (ABS / ABS + EBD / without ABS).

Example operating parameters

ElementFunctionTypical parametersImpact on safety
Brake servoPressure force supportVacuum 0.6–0.9 bar, diameter 7–11"Shortening the braking distance by up to several meters at 100 km/h
Brake force correctorRear axle pressure adjustmentProportional pressure reduction with load increaseTraction stability and slip limitation

Correct matching of these components to the vehicle model directly affects braking efficiency, even wear of pads and discs, and optimal operation of the entire hydraulic system.

Why is it worth taking care of servos and braking force correctors ?

Malfunctioning brake boosters and regulators can lead to reduced braking performance and increased road safety. Typical symptoms include:

  • Hard brake pedal – May indicate a brake booster failure.
  • Uneven braking – Problems with the brake booster can cause excessive braking on one axle.
  • Noises when braking – A damaged servo or equalizer can produce unusual noises. If you need a replacement, you'll find the right used car parts at Global Parts that will restore full efficiency to your braking system.

Step-by-step procedure for system operation during braking

  1. The driver presses the brake pedal.
  2. The servo uses vacuum to increase the pressure on the brake master cylinder.
  3. The pump generates hydraulic pressure in the brake lines.
  4. The brake force regulator regulates the pressure ratio between the front and rear axles.
  5. The calipers press the pads against the discs, generating friction and reducing the vehicle's speed. In a properly functioning system, the braking force distribution is on average around 60-70% front / 30-40% rear, which ensures stability and optimal use of tire grip.

How to choose the right servos and braking force correctors ?

When choosing servos and brake force correctors, there are several key aspects to consider:

  • Vehicle-specific fit – Every braking system has its own specific technical requirements. At Global Parts, you'll find brake boosters and brake boosters perfectly matched to BMW , Audi , Mercedes , Volkswagen , Mini , and more .
  • Technical condition – Used parts should be free from leaks, mechanical damage and pneumatic system defects.
  • Brake System Compatibility – Make sure the components you choose are compatible with your vehicle's design and specifications.

Fit, OEM, VIN and integration with other components

The selection of a brake servo and brake booster should take into account design compatibility with the brake master cylinder, brake lines, and ABS system. In practice, matching is based on the vehicle's model, year, engine version, and VIN. These elements work directly with:

  • brake pump,
  • brake fluid reservoir,
  • ABS/ESP module,
  • calipers and brake cylinders. Proper compatibility ensures not only safety, but also savings in operating costs – proper pressure distribution reduces uneven wear of friction elements and improves the durability of the entire system.

Why is it worth choosing used servos and braking force correctors ?

Used car parts , such as used servos and brake force correctors , is a practical solution that allows you to save money while maintaining high quality. By choosing used braking system components, you gain:

  • Lower costs – Used components are much cheaper than new ones, but offer equally high quality.
  • Ecology – Recycling parts supports environmental protection and reduces waste.
  • A wide range – In our store you will find used servos and braking force regulators for the most popular car brands.

How to take care of servos and braking force correctors ?

To ensure that servos and brake force correctors function 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 proper brake fluid level – Low fluid levels can damage the servo and other components.
  • Respond to symptoms of malfunction – Noises, uneven braking or problems with the brake pedal are signals that faulty parts need to be replaced. If replacement is necessary, Global Parts has the right used car parts to restore the effectiveness and reliability of your braking system.

FAQ – Frequently asked questions about servos and brake force regulators

QuestionAnswer
What is a brake booster?A servo is a vacuum amplifier that increases the pressure on the brake master cylinder. This allows the driver to brake effectively with less effort.
What is a brake force regulator?The equalizer is a pressure regulator in the rear circuit that adjusts the braking force to the vehicle load and prevents the rear axle from locking.
How does brake booster work?The system uses the pressure difference (vacuum approx. 0.6–0.9 bar) to increase the pressure transmitted to the brake master cylinder.
Does the servo work with the ABS system?Yes. The servo assists in generating pressure, and the ABS/EBD system electronically controls its distribution between the wheels.
What are the symptoms of a faulty servo?The most common symptom is a hard brake pedal and increased force required to stop the vehicle.
Why is a brake booster important?It is responsible for the vehicle's stability during braking, especially during sudden stops and with changing vehicle loads.
How to choose the right servo for your car?Please take into account the model, year, engine version and compatibility with the brake master cylinder and ABS system.

Summary: Servos and Brake Power Regulators at the Global Parts Automotive Store

Brake boosters and brake boosters are essential components of the braking system, increasing braking efficiency and precision. By maintaining their technical condition, you can improve driving comfort and safety. The Global Parts automotive store invites you to browse our wide selection of original used car parts . Whether you're looking for car parts for BMW , Audi , Volkswagen , Mercedes, Mini , and more, you'll find them at competitive prices. We strive to ensure every customer finds the right parts for their car, and if you have any questions or concerns about selecting the right components, we're happy to help! Please contact us – we're here to help! For more information and interesting facts, visit our automotive blog .

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