Spark Plug Replacement Interval for 4.2 engine?

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Dec 8, 2017 | 10:27 AM

Galco

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Joined: Oct 2007

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From: Southern California

Spark Plug Replacement Interval for 4.2 engine?

Hello all, before I get flamed for what should be a basic question, I did search and was unable to confirm Audi's recommended replacement interval on spark plugs for the most common US V8 4.2 petrol engine.

The link from Audi on its recommended service intervals is below along with a screen grab specific to spark plugs; but it doesn't list the 4.2 motor???

So, does anyone know the AUDI recommended replacement mileage or timing interval?

https://www.audiusa.com/content/dam/...-Year-2006.pdf

Thanks in advance!

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Dec 8, 2017 | 02:06 PM

Jack88

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Joined: Mar 2015

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From: California

Sure, according to that literature, you need it every 55k miles.

Dec 8, 2017 | 07:29 PM

MP4.2+6.0

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From: SF Bay Area, CA

55K miles, first interval only. 60K all intervals thereafter. So, 55K, 115K, 175K, etc.

Dec 8, 2017 | 10:44 PM

ltooz_a6_a8_q7

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Joined: Sep 2003

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From: Fremont, CA

When the gas mileage drops 3 miles or engine isn't running smoothly or 60k miles or when I get bored because it starts right up, idles smoothly and doesn't break...
Cheers,
Louis