06 Aero Rotor Size?

06AeroJLA · 03-10-2010, 06:24 AM

I'm looking for new brake pads and in my search have noticed that for a 2006 9-3 Aero there are 2 different front rotor size options, and 2 different pad options depending on the rotor size (obviously). One is 302mm diameter and the other is a 314mm diameter. Anyone know what the OEM size would be for the fronts? Or what options on the vehicle may make the difference in the rotor sizes?

Rudedog · 03-10-2010, 09:20 AM

The rotor(s) size of your car are defined in the plate ID in pillar "B" drivers door. On your VIN placard is a row of letter combination describing what brakes belong on the car.

The first couple describes the front brake disc.

AA: 15" 285mm
AB: 16" 302mm (mounted on all US 4cyl)
AC: 16"+ 314mm (mounted on 2.8 V6)
AD: 17" 345mm (starting from 2008 only on Turbo X)

The second couple describes the rear discs

BA: 15" 278mm (from 2003 to 2007 on 1.8i, 2.0t, 1,9JTD. From 2008 on only mounted on 1.8i)
BB: 16" 292mm
BC: 16" 292mm only on XWD

The third couple describes front brake caliper

CA: 15"
CB: 16"
CC: 16"+
CD: 17"

The fourth couple describes rear brake caliper

DA: 15"
DB: 16"

06AeroJLA · 03-10-2010, 10:49 AM

Awesome! Thanks!

03-10-2010, 06:24 AM	#1
06AeroJLA TSLMember Join Date: Feb 2010 Location: Berkley, MI Posts: 61	06 Aero Rotor Size? I'm looking for new brake pads and in my search have noticed that for a 2006 9-3 Aero there are 2 different front rotor size options, and 2 different pad options depending on the rotor size (obviously). One is 302mm diameter and the other is a 314mm diameter. Anyone know what the OEM size would be for the fronts? Or what options on the vehicle may make the difference in the rotor sizes? __________________ 2006 9-3 Aero

03-10-2010, 09:20 AM	#2
Rudedog Live, eat, and sleep by TSL Join Date: Jul 2006 Location: Brunswick Maryland Posts: 1,452	The rotor(s) size of your car are defined in the plate ID in pillar "B" drivers door. On your VIN placard is a row of letter combination describing what brakes belong on the car. The first couple describes the front brake disc. AA: 15" 285mm AB: 16" 302mm (mounted on all US 4cyl) AC: 16"+ 314mm (mounted on 2.8 V6) AD: 17" 345mm (starting from 2008 only on Turbo X) The second couple describes the rear discs BA: 15" 278mm (from 2003 to 2007 on 1.8i, 2.0t, 1,9JTD. From 2008 on only mounted on 1.8i) BB: 16" 292mm BC: 16" 292mm only on XWD The third couple describes front brake caliper CA: 15" CB: 16" CC: 16"+ CD: 17" The fourth couple describes rear brake caliper DA: 15" DB: 16" __________________ RG Rude WASSAAB member 1997 900SE Talladega (SQR stage 4) 1999 9-3SE T5 Suite (stage 2) 2006 9-3SS Aero (BSR PPC)

03-10-2010, 10:49 AM	#3
06AeroJLA TSLMember Join Date: Feb 2010 Location: Berkley, MI Posts: 61	Awesome! Thanks! __________________ 2006 9-3 Aero