Does a 2006 Audi A4 have an interference or non-interference engine?

If your belt broke you'll need to replace the head Audi's have non-interference engines so when belts snap it causes all kinds of havoc

Yes.
As far as I now, all B5 A4 generation engine have interference engines, even the older 12 valve 6 cylinder engines.

How would anyone know that?

Is it an interferance engine?

You obviously have to do some testing & checking
to answer that,not every broken belt results in bent valves

• Kia Spectrs and Sortage are non interference. All other Kia engines are interference. So your vehicle is non-interference.
  

• Hope this helps.

Hi Sam,
The 1.8 Audi engine is referred as "interference" style engine. The timing belt breaks, then the pistons and the valves can "interfere" with each other. Actually hitting each other. Possibly bending valves and or cracking pistons. So--------
Some money will need to be spent to find out if further damage other than the timing belt replacement.
This process can get real expensive.
Check around carefully and ask a lot of questions before proceeding.
You could spend many, many, hundreds of U.S. dollars with no results if you are not careful.
Wayne

if the belt snaps the engine is fu...d.change it every 60k.NOT 80k as suggested by Audi.dont forget the tensioner as this normally goes first.

There is a oil level sensor that is at the bottom of the engine oil pan. There is also an oil pressure switch that threads into the back of the engine block.

Could be a broken motor mount, so that one of the pulleys is scraping a shroud or some other fixed item.
Examine the area around the pulleys and see if there is bare metal below one of them.
If so, have the motor mounts checked.

It is fairly easy, you do need a special cam alignment too, it can be purchased online for $99. You also need a 2 jaw puller to remove the cam gears.

Care must be taken when servicing this engine as it is an interference engine and if the belt is installed wrong the valves will be bent.

what is the liter size of your engine? the 1.8L is an interference engine. generally all Audi engines are interference engines, and timing belt breakage can bend valves, the sure way to determine without detailed maintenance information, install a new belt, once the belt is on immediately run a compression test, if timing marks are good and compression fails, valves are bent.