Workshop for current Saab models > Saab 9-3 Sport Saloon / Convertible / Combi (Wagon/Estate) / Turbo X / AWD (2003 on)

Brake disc data

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phoenix:
Brake disc  diameters (for MY07 cars, others should be the same, I am checking...)
Code positions are 7 for front, 8 for rear




Front

"Saab Brake Size" - Code - Dimensions - Engine

15" brake:  AA 285mm dia. - 25mm thick  Z18XE, B207E/L, Z19DT/H, (Not CV Z19DTH)

16" brake:  AB 302mm dia. - 28mm thick  B207R, (CV Z19DTH), All US (except B284L)

16"+ brake: AC 314mm dia. - 28mm thick  B284L, Z19DTR
 
17" brake:  AD 345mm dia. - 30mm thick  B284R

Rear


"Saab Brake Size" - Code - Dimensions - Engine

15" brake:  BA 278mm dia. - 12mm thick (unventilated solid disc)  Z18XE, B207E/L, Z19DTH (not CV Z19DTH)

16" brake:  BB 292mm dia. - 20mm thick (ventilated) B207R / B284L, Z19DTR (CV Z19DTH/R)

16" brake:  BC 292mm dia. - 20mm thick (ventilated) B284R (4WD, larger centre hole)

chris_de_ze:
Mine is a 2003 2.0T (B207R) and it is equipped with 314mm front discs.
So not only the B284 have 314mm discs but the early Aero's as well.

Steve McF:
Is there any braking performance benefit to having 314mm front discs rather than 302mm? i.e. would they be a better choice on a remapped car?

phoenix:
Yes, the larger diameter alone gives an improved stopping power. The pads also have a greater area. Together they are a very worthwhile upgrade.

Steve McF:
Great - my discs will need doing at some point in the next year or so, so that might be the time to upgrade ;)

Need to source callipers off a scrap early Aero first though ;)

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