in your garage to make future searches easy.

Condition Value
expand_moreFront axle brake disc diameter
expand_moreWith 15" chassis
FN3 brake calipers 11.34 in
HP2 brake calipers 1.03 ft
expand_moreWith 16" chassis
FN3 brake calipers 1.02 ft
HP2 brake calipers 1.06 ft
expand_moreFront axle brake disc thickness
FN3 brake calipers 0.98 in
HP2 brake calipers 1.18 in
expand_moreFront axle brake disc minimal thickness
FN3 brake calipers 0.91 in
HP2 brake calipers 1.1 in
expand_moreFront axle brake lining thickness
expand_moreFN3 brake calipers
With backing plate 0.75 in
expand_moreHP2 brake calipers
With backing plate 0.67 in
expand_moreFront axle brake lining minimal thickness
With backing plate 0.28 in
expand_moreFront axle brake piston diameter
FN3 brake calipers 2.24 in
HP2 brake calipers 1.69 in
expand_moreRear axle brake disc diameter
expand_moreAll Audi diesel V6 2.5 L AFB engines
C38 brake calipers 9.65 in
expand_moreAll other modifications
C43 brake calipers 10.59 in
expand_moreRear axle brake disc thickness
expand_moreAll Audi diesel V6 2.5 L AFB engines
C38 brake calipers 0.39 in
expand_moreVariant 1
C43 brake calipers 0.87 in
expand_moreVariant 2
C43 brake calipers 0.79 in
expand_moreAll other modifications
expand_moreVariant 1
C43 brake calipers 0.87 in
expand_moreVariant 2
C43 brake calipers 0.79 in
expand_moreRear axle minimal brake disc thickness
expand_moreAll Audi diesel V6 2.5 L AFB engines
C38 brake calipers 0.31 in
expand_moreVariant 1
C43 brake calipers 0.79 in
expand_moreVariant 2
C43 brake calipers 0.71 in
expand_moreAll other modifications
expand_moreVariant 1
C43 brake calipers 0.79 in
expand_moreVariant 2
C43 brake calipers 0.71 in
expand_moreRear axle brake lining thickness
With backing plate 0.67 in
expand_moreRear axle minimal brake lining thickness
With backing plate 0.28 in
expand_moreRear axle brake piston diameter
expand_moreAll Audi diesel V6 2.5 L AFB engines
expand_moreVariant 1
C38 brake calipers 1.5 in
C43 brake calipers 1.69 in
expand_moreVariant 2
C38 brake calipers 1.42 in
C43 brake calipers 1.61 in
expand_moreAll other modifications
expand_moreVariant 1
C43 brake calipers 1.69 in
expand_moreVariant 2
C43 brake calipers 1.61 in

Brake system is the most important system in your 1998 A8. Check pads and disks from time to time and replace them as they worn below minimum thickness allowed by Audi.

Please be noted that all capacities listed here are approximate. Check fluid levels when adding or refilling as recommended in your 1998 Audi A8 user's manual. Keep in mind that all information here is provided “as is” without any warranty of any kind.

Before doing any DIY service please check your insurance policy and Audi warranty policy for your region. In some regions DIY service may invalidate your warranty.

Conquer your fears and never give up!

DIY car service is not as difficult as it looks like and it might save you thousands of dollars per year. It might be even fun and a good thing to do with your kids on a weekend to teach them how basic machinery works. It's really hard to screw something up and damage your car permanently if you use right tools, follow Audi A8 service manual and use right parts and fluids in prescribed amounts. Even modern cars stuffed with electronics can be serviced in your garage or even in your driveway. Changing engine oil, brake fluid, ATF, replacing brake pads, and etc. It's all may be done by yourself in a mater of a couple of hours.

Doing basic service for your 1998 Audi A8 you're not only saving money, but also also improving your technical skills and learning something new.

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