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- A6-C5 - (Typ 4B, 1997–2004) (https://www.audiforum.ca/a6-c5-typ-4b-1997%962004-80/)

- - Confusion on spark plugs (https://www.audiforum.ca/a6-c5-typ-4b-1997%962004-80/confusion-spark-plugs-16812/)

nemohm

Feb 26, 2008 03:51 PM

Confusion on spark plugs

Would you suggest spark plugs model for 2003 A6 2.7T BEL?

(Bentley suggests BKR6ES - copper? good for 15k?

also there are Bosch plugs that are not even listed on Bosch's website)

Does somebody know what model are the plugs sold by the dealers?

Snow Rocket

Apr 1, 2008 08:23 PM

Re: Confusion on spark plugs

Go with an Iridium fine wire electrode, supposed to be stronger spark and easier on ignition components. My car had bosch platinum +4's with an audi logo on them. I can not find any bosch plugs for my car!?!

My car used to hesitate for a second after startup as the high idle dropped to normal, with new plugs its smooth as a kitten. Maybe just needed new plugs, maybe the Iridium plugs work better.

Got them from part source, $10 a piece.

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