How can the operation of the braking system vacuum pump be checked on 1992 Audi 100?

In order to test the braking system vacuum pump, disconnection of the vacuum pipe and attachment of a gauge to the pump would be required. Once the engine has started, test the vacuum; in case it is considerably low, the pump can be in a faulty condition. Components are not sold separately, so they have to be replaced.

Genuine 1992 Audi 100 Vacuum Pump

Vacuum Pressure Pump

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2 Vacuum Pumps found

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1992 Audi 100 Vacuum Pump Part Number: 4B0-907-325
$185.64 MSRP: $260.00
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Product Specifications
- Replaces: 811-907-325
- Item Weight: 1.50 Pounds
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 4B0-907-325
- 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 Vacuum Pump Part Number: 8L0-862-257-N
$921.86 MSRP: $1191.80
You Save: $269.94 (23%)
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Product Specifications
- Other Name: Pump; Vacuum Pump
- Item Weight: 2.40 Pounds
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 8L0-862-257-N
- 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

1992 Audi 100 Vacuum Pump Parts and Q&A

Q: How can the operation of the braking system vacuum pump be checked on 1992 Audi 100?
A: In order to test the braking system vacuum pump, disconnection of the vacuum pipe and attachment of a gauge to the pump would be required. Once the engine has started, test the vacuum; in case it is considerably low, the pump can be in a faulty condition. Components are not sold separately, so they have to be replaced.