How should you inspect and replace brake discs on Audi 90?

Jack up the front or rear of the car and support it on axle stands before removing the roadwheel. Rotate the disc and examine it for deep scoring or grooving; while light scoring is normal, excessive damage requires the disc to be removed and renewed or reground within specified limits by a suitably-equipped engineering works. To ensure even braking, both front or both rear brake discs should be renewed or reground simultaneously. Remove the front or rear brake calliper and bracket without disconnecting the hydraulic hose, suspending the calliper by wire from the coil spring to avoid straining the hose. After removing the brake pads, use a micrometer in several positions to check the disc thickness; if it is worn down to the specified minimum thickness, both front or both rear discs should be renewed or reground together. Remove the countersunk cross-head screw and withdraw the brake disc from the hub. Refitting is a reversal of removal, ensuring that the mating faces of the hub and disc are clean.

Genuine Audi 90 Brake Disc

Disc Rotor

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5 Brake Discs found

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Audi 90 Brake Rotor Part Number: 443-615-301-B
$77.35 MSRP: $100.00
You Save: $22.65 (23%)
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Product Specifications
- Other Name: Brake Disc; Rotor
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 1988-1991 Audi 90 | Base | 4 Cyl 2.0 L GAS, 5 Cyl 2.3 L GAS
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Audi 90 Brake Rotor Part Number: 893-615-301-A
$121.38 MSRP: $170.00
You Save: $48.62 (29%)
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Product Specifications
- Other Name: Brake Disc
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 1990-1991 Audi 90 | Base | 5 Cyl 2.3 L GAS
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Audi 90 Rotor Part Number: 8A0-615-601
$60.33 MSRP: $78.00
You Save: $17.67 (23%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Brake Disc
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 1988-1991 Audi 90 | Base | 4 Cyl 2.0 L GAS, 5 Cyl 2.3 L GAS
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Audi 90 Rotor Part Number: 895-615-301-B
$77.35 MSRP: $100.00
You Save: $22.65 (23%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Brake Disc
- Replaces: 8A0-615-301-C
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 1993-1995 Audi 90 | Base, CS, S, Sport | 6 Cyl 2.8 L GAS
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Audi 90 Rotor Part Number: 443-615-601
$82.11 MSRP: $106.15
You Save: $24.04 (23%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Brake Disc
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 1993-1995, 1988-1991 Audi 90 | Base, CS, S, Sport | 4 Cyl 2.0 L GAS, 5 Cyl 2.3 L GAS, 6 Cyl 2.8 L GAS

Audi 90 Brake Disc

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Audi 90 Brake Disc Parts and Q&A

Brake Rotor
443-615-301-B
Q: How should you inspect and replace brake discs on Audi 90?
A:
Jack up the front or rear of the car and support it on axle stands before removing the roadwheel. Rotate the disc and examine it for deep scoring or grooving; while light scoring is normal, excessive damage requires the disc to be removed and renewed or reground within specified limits by a suitably-equipped engineering works. To ensure even braking, both front or both rear brake discs should be renewed or reground simultaneously. Remove the front or rear brake calliper and bracket without disconnecting the hydraulic hose, suspending the calliper by wire from the coil spring to avoid straining the hose. After removing the brake pads, use a micrometer in several positions to check the disc thickness; if it is worn down to the specified minimum thickness, both front or both rear discs should be renewed or reground together. Remove the countersunk cross-head screw and withdraw the brake disc from the hub. Refitting is a reversal of removal, ensuring that the mating faces of the hub and disc are clean.