How to remove and test the Brake Booster vacuum hose and valve on 1991 Audi 100?

In order to un-hook the vacuum hose, loosen up the connection between the servo unit; be careful not to damage the grommet. Unclip the hose, disconnect it to the manifold/pump and take it away. Check the hose and the valve on any damage and replace them. Refitting: Have a good fit, with routing and sure connections.

Genuine 1991 Audi 100 Brake Booster

Brake Power Booster

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2 Brake Boosters found

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1991 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 1991 Audi 100 Submodels:
- Base, CS, E, S | 5 Cyl 2.3 L GAS, 6 Cyl 2.8 L GAS
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1991 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 1991 Audi 100 Submodels:
- Base, CS, S | 5 Cyl 2.3 L GAS, 6 Cyl 2.8 L GAS

1991 Audi 100 Brake Booster Parts and Q&A

Q: How to remove and test the Brake Booster vacuum hose and valve on 1991 Audi 100?
A: In order to un-hook the vacuum hose, loosen up the connection between the servo unit; be careful not to damage the grommet. Unclip the hose, disconnect it to the manifold/pump and take it away. Check the hose and the valve on any damage and replace them. Refitting: Have a good fit, with routing and sure connections.