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Discussion Starter #1
11" & 11.3" Passat Front Rotor-Interchangable? How to tell?

I think most of you have noticed that I've got a Drilled/Slotted/Drilled and Slotted Rotor GB going in the GB forum. I'm a little confused...

I'm of the understanding that the change from 11" to 11.3" rotors happened @ 1999.5 and if you have VIN # up to X12410, you have the 11" rotors. So when does it manifest itself in cars? 2000? 1999?

- Is there any easy way to tell?
- Are the 11" and 11.3" rotors interchangable?

TIA!
 

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Uh oh...I better measure my rotors before I Paypal my order for the GB. I assumed the front rotors on my early '99 were 11.3" but now I'm not so sure.
 

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First I"ll just say I"m by no means an expert but according to the VW ETKA Years up to MY 2000 have 282MMx25 Rotors. All 2000 MY passats with the VIN 124900 and LOWER have the older style 11.0 rotors.

If you have a 2000 Passat and your VIN is greater the 124900 then you *should* have the 11.3" rotors. (288x25)

 

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I just called my local VW stealership (Westside) and the parts guy confirmed that the front rotors on my early 99 are 282mm x 25mm ($83.63 each!) but didn't know or at least claimed not to know if the larger 288mm x 25mm rotors are interchangeable. I hope someone knows so I can cancel my order with S_Klass if necessary. :???:
 

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My car was produced in August '98( MY 99) and have 11.3" (288mm) front discs. Friend of mine and member of CB5 as well, Geri have his car also produced on '98 but very begenning and have 11" (282mm) front discs.
Two days ago he swaped his OE 282mm discs for 288mm discs (bought in VW shop, with Part# like mines),plane bolt on procedure. Only point that he did not tell me is did he changed his calliper brackets to clear bigger diamenter. Pads and calipers remaining same.
As long as disc is 25mm thick you do not need to change calipers or pads.
Hope this helped.
 

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Discussion Starter #8
Nenad - so what you're saying is that going from 11" rotors to 11.3" rotors requires an upgrade of caliper brackets i.e. it's not a fully interchangable part?

Nenad - what's your VIN?

Can I also get confirmation of the VIN cutoff? Is it those ending before 124900 or
12410?
 

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VIN: WVWZZZ3BZXE162354
production date August 31st 1998 (Model Year 99-note letter X in VIN)

I am not saying that ist is neccesary to change brackets it this case altough it is logicaly to think of it, you are moving from diameter 282mm to 288mm, i.e. diameter diff is 6mm so caliper should go a bit "backward"
I'll send now mail to Geri and ask him did he changed brackets, if not- than you are o.k.
 

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already bought mines, if the brackets are necessary, I might as well go ahead and get the brembo calipers I want :lol: ! (Why do I seem to find excuses in order to spend money on my car) :oops:
 

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Nenad said:
My car was produced in August '98( MY 99) and have 11.3" (288mm) front discs. Friend of mine and member of CB5 as well, Geri have his car also produced on '98 but very begenning and have 11" (282mm) front discs.
Two days ago he swaped his OE 282mm discs for 288mm discs (bought in VW shop, with Part# like mines),plane bolt on procedure. Only point that he did not tell me is did he changed his calliper brackets to clear bigger diamenter. Pads and calipers remaining same.
As long as disc is 25mm thick you do not need to change calipers or pads.
Hope this helped.
That was the info I was trying to find out, thanks Nenad
 

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I have a '99 with VIN ending XE179176 - I believe it was built 2/99. My front disc measures 11". FWIW.
 

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Nenad is right, I just found this out by accident I guess because I went off the vin# and what ImportRP.com told me, so I thought I had the 11.3 inch ~288mm rotors.

I just measured my old rotors now, and I measured 11 1/8 inches ~ 282 mm.

I'm guessing that if the parts places goes by VIN, they are actually checking if our cars have the right carrier for the rotors we want, not wether the cars have 288m rotors or not.

If you look at the diagram Nenad provided, it shows two different rotors 282mm or 288m but the same carriers.

I replaced my rotors with 288m ATE Power discs. They seemed to have enough clearance when I installed them, and I did not hear any metal on metal contact after driving. :weirdo:
 

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Ok, well I just checked my Bentley manual.

Vehicles to VIN 3B Y 000 001 with 1.8t have the 280 mm rotors as oppossed to 282 mm.

Like Nenad said...you'll probably have to get different carriers.





Interesting...the V6 models starting from 2001 have 312mm discs, but still have the FN3 calipers like the others.

 

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Thanks LIVE4SPEED, Nenad and JokerUNM for the excellent info relating to this subject :thumbup:

I'll be replacing my stock rotors and pads (58k) soon thanks to S_Klass's group buy :wink:
 

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Looks like passat from 99 to 2002 has gone through few rolling changes on the front brakes alone... There are total of 4 caliper carrier part# available for passat model.

1999 - 8E0 615 125 (282x25mm)
2000 and up - 4A0 615 125A (288x25mm)
2001 and up - 4B0 615 125A (312x25mm) - early W8?.
I couldn't get the part# for the current W8 carrier that house 323x28mm rotor. (probably same one used on the B5 S4)

I guess dremeling 1999 model carrier to fit 288x25mm rotor may be too risky?...
 
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