How to clean and reassemble a front Brake Caliper on Audi 90?

Clean the exterior of the calliper, ensuring no foreign matter enters the hydraulic hose aperture, then mount the calliper in a vice. Prise the dust cap(s) from the groove(s) in the calliper and place a piece of wood in the calliper jaws, opposite the piston(s). Use air pressure from a foot pump through the hydraulic fluid inlet to force the piston(s) from the bore(s), removing each piston separately if twin pistons are fitted by blocking one with wood. Use a pad of rubber on wood and a G-clamp to cover the open cylinder while removing the remaining piston. Carefully prise the piston seal(s) from the bore(s) without scratching the bore surface and remove the dust cap(s) from the piston(s). Unscrew the bleed screw, clean all components with methylated spirit, and allow them to dry. Examine the piston and bore surfaces for corrosion and scoring; if evident, the calliper should be renewed completely, but if the surfaces are good, obtain a repair kit with new seals. Begin reassembly by smearing a little brake cylinder fluid on the bore(s) and piston(s), then locate the piston seal(s) in the bore groove(s). To refit the piston, position the dust cap on the plain end of the piston, offer the piston to the calliper, and use a screwdriver to lift the dust cap into the groove, pressing the piston into the bore until the dust cap snaps into the groove on the outer end. Fit a new rubber cap on the bleed screw, apply a little brake fluid to the threads, and tighten the bleed screw into the calliper. For the Girling calliper, apply a little grease to the guide pins before inserting them, and for the Teves calliper, check the guide pin bushes made of Teflon and renew them if necessary, also checking the rubber bushes.

Genuine Audi 90 Brake Caliper

Caliper

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18 Brake Calipers found

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Audi 90 Caliper Part Number: 853-615-423-AX
$293.79 MSRP: $410.00
You Save: $116.21 (29%)
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Product Specifications
- Position: Left
- 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
View related parts
Audi 90 Caliper Part Number: 853-615-424-AX
$293.79 MSRP: $410.00
You Save: $116.21 (29%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Position: Right
- 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 Caliper Part Number: 443-615-124-FX
$104.06 MSRP: $145.00
You Save: $40.94 (29%)
Ships in 1-2 Business Days
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Product Specifications
- Position: Right
- Replaces: 443-615-124-F
- 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
View related parts
Audi 90 Caliper Part Number: 443-615-123-FX
$129.25 MSRP: $180.28
You Save: $51.03 (29%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Position: Left
- Replaces: 443-615-123-F
- 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 Caliper Part Number: 853-615-424-X
$192.37 MSRP: $267.95
You Save: $75.58 (29%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Position: Right
- Replaces: 853-615-424
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 1988 Audi 90 | Base | 4 Cyl 2.0 L GAS, 5 Cyl 2.3 L GAS
View related parts
Audi 90 Caliper Part Number: 895-615-124
$282.03 MSRP: $395.00
You Save: $112.97 (29%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Position: Right
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 1993-1994, 1990-1991 Audi 90 | Base, CS, S | 5 Cyl 2.3 L GAS, 6 Cyl 2.8 L GAS
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Audi 90 Caliper Part Number: 8A0-615-423-X
$243.81 MSRP: $340.00
You Save: $96.19 (29%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Position: Left
- 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
View related parts
Audi 90 Caliper Part Number: 8A0-615-424-X
$243.81 MSRP: $340.00
You Save: $96.19 (29%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Position: Right
- 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
View related parts
Audi 90 Caliper Part Number: 893-615-123-B
$296.31 MSRP: $415.00
You Save: $118.69 (29%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Position: Left
- 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
View related parts
Audi 90 Caliper Part Number: 893-615-124-B
$296.31 MSRP: $415.00
You Save: $118.69 (29%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Position: Right
- 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
View related parts
Audi 90 Axle Assembly Part Number: 895-615-123
$310.59 MSRP: $435.00
You Save: $124.41 (29%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Caliper; Axle Assembly, Link Kit
- Position: Left
- 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
View related parts
Audi 90 Caliper Part Number: 895-615-123-A
$351.29 MSRP: $492.00
You Save: $140.71 (29%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Position: Left
- 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
View related parts
Audi 90 Caliper Part Number: 895-615-124-A
$351.29 MSRP: $492.00
You Save: $140.71 (29%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Position: Right
- 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
View related parts
Audi 90 Caliper Part Number: 443-615-423-AX
$310.45 MSRP: $433.33
You Save: $122.88 (29%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Position: Left
- 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
View related parts
Audi 90 Caliper Part Number: 443-615-424-AX
$310.45 MSRP: $433.33
You Save: $122.88 (29%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Position: Right
- 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
View related parts
Audi 90 Caliper Part Number: 443-615-423-X
$189.67 MSRP: $262.70
You Save: $73.03 (28%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Position: Left
- Replaces: 443-615-423
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 1988 Audi 90 | Base | 4 Cyl 2.0 L GAS, 5 Cyl 2.3 L GAS
View related parts
Audi 90 Caliper Part Number: 853-615-423-X
$199.39 MSRP: $276.32
You Save: $76.93 (28%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Position: Left
- Replaces: 853-615-423
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 1988 Audi 90 | Base | 4 Cyl 2.0 L GAS, 5 Cyl 2.3 L GAS
View related parts
Audi 90 Caliper Part Number: 443-615-424-X
$196.04 MSRP: $233.46
You Save: $37.42 (17%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Position: Right
- Replaces: 443-615-424
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 1988 Audi 90 | Base | 4 Cyl 2.0 L GAS, 5 Cyl 2.3 L GAS

Audi 90 Brake Caliper

Choose original equipment manufacturer Brake Caliper for great performance and strong durability. They use Audi's official craftsmanship and high-grade materials, and meet strict quality standards. Are you looking for quality Brake Caliper at a good price? Come to our online store. We carry a wide range of genuine parts for your Audi 90 and the prices are competitive. Each part comes with the manufacturer's warranty. You can install with confidence and get steady results. Over time, you'll save money and avoid hassle. Keep your maintenance simple and protect your vehicle with OEM parts. Get the quality your 90 needs now.

Audi 90 Brake Caliper Parts and Q&A

Caliper
853-615-423-AX
Q: How to clean and reassemble a front Brake Caliper on Audi 90?
A:
Clean the exterior of the calliper, ensuring no foreign matter enters the hydraulic hose aperture, then mount the calliper in a vice. Prise the dust cap(s) from the groove(s) in the calliper and place a piece of wood in the calliper jaws, opposite the piston(s). Use air pressure from a foot pump through the hydraulic fluid inlet to force the piston(s) from the bore(s), removing each piston separately if twin pistons are fitted by blocking one with wood. Use a pad of rubber on wood and a G-clamp to cover the open cylinder while removing the remaining piston. Carefully prise the piston seal(s) from the bore(s) without scratching the bore surface and remove the dust cap(s) from the piston(s). Unscrew the bleed screw, clean all components with methylated spirit, and allow them to dry. Examine the piston and bore surfaces for corrosion and scoring; if evident, the calliper should be renewed completely, but if the surfaces are good, obtain a repair kit with new seals. Begin reassembly by smearing a little brake cylinder fluid on the bore(s) and piston(s), then locate the piston seal(s) in the bore groove(s). To refit the piston, position the dust cap on the plain end of the piston, offer the piston to the calliper, and use a screwdriver to lift the dust cap into the groove, pressing the piston into the bore until the dust cap snaps into the groove on the outer end. Fit a new rubber cap on the bleed screw, apply a little brake fluid to the threads, and tighten the bleed screw into the calliper. For the Girling calliper, apply a little grease to the guide pins before inserting them, and for the Teves calliper, check the guide pin bushes made of Teflon and renew them if necessary, also checking the rubber bushes.