A4 (B6 Platform) Discussion Discussion forum for the B6 Audi A4 produced from 2002-2005

Rough Idle and explanation from dealer:

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Old 03-05-2003, 02:10 PM
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Default Rough Idle and explanation from dealer:

Took the A4 in for it's 10k check up and had a list of things to get fixed.
Told them about a rough idle in the 1200-1400rpm range. During cold start and any other time.

His explanation was that it's the secondary air induction.

Is he full of **** or what?
Old 03-05-2003, 02:34 PM
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Default Re: Rough Idle and explanation from dealer:

My '03 A4 1.8T idles REAL rough sometimes when I start it, I mean the sound of the vibrations hurts your ears. Any ideas what it is? And does Audi change you oil before 10k miles, thats my only guess to my problem, that the oil is worn out.
Old 03-05-2003, 02:47 PM
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Default Not rough but loud...

My 1.8T idles loud when I first start it in the morning, so much so that I can make the house windows rattle slightly. I just tell everyone it's on account of the V12 I got lurking under the hood.
Old 03-05-2003, 02:58 PM
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Default ask vx211. He mentioned something about a 2nd pump turning on when it's cold.

My car's loud in the morning but i don't get rough idle. Your dealer might be right.
Old 03-05-2003, 03:24 PM
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Default you're right. Not rough but loud! It has to be the worst idling engine I've ever had.

It's only in the 1200-1400 rpm range. even in gear. Just a lot of low frequency noise!
It sucks!
Old 03-05-2003, 05:06 PM
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Default Same here. I almost vibrated my garage shelf off the wall.

It idles very smooth but the exhaust is still raunchy. I wondered if they did it on purpose for effect. Or maybe it's for emmission control?
Old 03-05-2003, 05:20 PM
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Default i have a Tiptronic and the idle makes my whole body shake...

it's freakin' ridiculous. side mirrors, my hands, cups...etc everything shakes and trembles.

maybe it could be a health hazard.
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