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What model turbo came stock on the 2001 A4? KO3/K03s?

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Old 04-22-2008, 04:16 AM
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JSS
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Default What model turbo came stock on the 2001 A4? KO3/K03s?

Ok, so I hear that in 2001 the VW GTI 1.8T switched turbos from the K03 to the K03s making for a distinction between 2001 and 2001.5 GTIs in regards to performance and reliability. Does anyone know if the same holds true for the A4? I am looking at buying an early 2001 A4 but all of the specs I find simply tell me 170hp (20 up from the 2000 A4) and do not go into any detail about early versus late year model differences. I'd appreciate the help. Thanks!
Old 04-22-2008, 04:20 AM
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Default some came with a KO3 and some came with the KO3s I think it depends on

the build date.
Old 04-22-2008, 05:00 AM
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Default As far as I know, all '01's have the s

the ECU switched to CH post Nov. '00 builds,


99 something on the vin.

170hp is s


Could be wrong though....
Old 04-22-2008, 09:41 AM
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does it have anything to do with the little red accent on the 1.8t badge?
Old 04-22-2008, 11:14 AM
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Default 2000+ A4's got the 703J K03, which has updated bearings and seals.

The GTI's are the only us market car that got bigger compressor wheels on the k03(ala k03 sport) starting in the year 2001.

The MY2001+ A4's went from 150hp to 170hp, by raising the boost pressure from 7psi to 10.5psi.
Old 04-22-2008, 11:16 AM
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That's the 170 designation
Old 04-22-2008, 05:33 PM
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Default Thanks everyone!

I think nOyxl/Kyle's post seems to be the most accurate based on the other research I did throughout the day (I wasn't able to get the actual model number though...nice work man). It seemed like everyone I spoke to today had a slightly different answer...even the service dept of the Audi dealership here didn't know the answer or were too lazy to look it up for me. I really appreciate everyone's help; thanks for your time.

I just purchased a 2001 A4 about an hour ago! It's my first Audi and I'm stoked. I'm already starting to plan the mods...

Cheers!
Old 05-10-2013, 09:08 PM
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Default Reviving an old thread...

So is it gospel that no B5 1.8T A4's EVER shipped with anything but a K03 non-sport?
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