Technical Data; Brakes, Wear Limits - Audi A8 2003 Workshop Manual

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Technical data

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Brakes, wear limits

(ARL003290; Edition 03.2013)
Diagonally split dual-circuit braking system with ABS, EBPD, EDL, ASR, ESP, ECD and EPB
Brake caliper
Factory code (PR No.)
Ventilated brake disc
Brake disc, thickness
Brake disc, wear limit
Brake caliper, piston
Brake pad thickness
Brake pad wear limit (in‐
cluding backplate and
damper plate)
1) Special security vehicle
⇒ "1 Front brakes (PR 1LG) ", page 38
⇒ "2 Front brakes (PR 1LJ, 1LL, 1LM, 1LK)", page 46
Note
When performing repair work on brakes, hairline cracks are
♦
often found on the friction surface of the brake discs. Hairline
cracks up to a length of 10 mm do not present a technical
problem and do not justify a renewal of brake discs.
Brake discs with cracks going all the way across the friction
♦
surface must be renewed.
Brake caliper
Factory code (PR
No.)
Ventilated brake ∅ mm
disc
Brake disc, thick‐ mm
ness
Brake disc, wear
limit
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Brake caliper, 6 ∅ mm
piston monoblock
Brake system
Front brakes
FNR FNR G60
G60 (16")
(16")
1LG 1LG
∅ mm 321 323
mm 30 30
mm 28 28
∅ mm 60 60
mm 20.3 20.3
mm 9 9
Ceramic front brakes
Brembo M6 Al
1LW
380
38
The minimum thickness of the
brake disc is stamped onto the
brake disc hub as a wear limit
specification.
2 x 32/ 36/ 38
Brake system - Edition 03.2013
FNR 42 AL FNR 42 AL
(17") (18")
1LL, 1LM 1LJ, 1LK
360 385
34 36
32 34
2 x 42 2 x 42
20.43 20.43
9 9
Audi A8 2003 ➤
FNR 42 AL
(18")
1LJ,
1)
385
36
34
2 x 42
20.43
9
1. Brakes, wear limits
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