How to test and replace the Brake Booster servo unit on 1992 Audi 100?

To check the brake booster, press the brake a few times, press on the pedal to start the engine and observe the pedal give. In case of fault, check the check valve or the vacuum pump and change the brake booster accordingly. This can be removed by taking off parts, refitting and measuring accurately, greasing and bleeding the system.

Genuine 1992 Audi 100 Brake Booster

Brake Power Booster

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3 Brake Boosters found

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1992 Audi 100 Pressure Metering Valve Part Number: 443-614-151-H
$250.61 MSRP: $351.00
You Save: $100.39 (29%)
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Product Specifications
- Other Name: Regulator; ABS Regulator, Brake Booster
- Item Weight: 2.40 Pounds
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 443-614-151-H
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following 1992 Audi 100 Submodels:
- Base, CS, E, S | 5 Cyl 2.3 L GAS, 6 Cyl 2.8 L GAS
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1992 Audi 100 Brake Booster Part Number: 4A0-612-107-A
$322.73 MSRP: $452.00
You Save: $129.27 (29%)
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Product Specifications
- Other Name: Brake Servo
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 4A0-612-107-A
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following 1992 Audi 100 Submodels:
- Base, CS, S | 6 Cyl 2.8 L GAS
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1992 Audi 100 Pressure Metering Valve Part Number: 443-614-151-B
$413.26 MSRP: $578.80
You Save: $165.54 (29%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Regulator; Brake Booster
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 443-614-151-B
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following 1992 Audi 100 Submodels:
- Base, CS, S | 5 Cyl 2.3 L GAS, 6 Cyl 2.8 L GAS

1992 Audi 100 Brake Booster Parts and Q&A

Q: How to test and replace the Brake Booster servo unit on 1992 Audi 100?
A: To check the brake booster, press the brake a few times, press on the pedal to start the engine and observe the pedal give. In case of fault, check the check valve or the vacuum pump and change the brake booster accordingly. This can be removed by taking off parts, refitting and measuring accurately, greasing and bleeding the system.