I just dropped mine in for the 40k. I asked about the plugs and one of the real techs was in while I was at the desk. He said the intake covers need to come off. Perhaps that's what the tool is for?

 

I think T10094 is for pulling the coil packs. I had no problem doing it by hand. Just give 'em a little twist if they don't come right up.

The only tools you'll need are a 5mm hex bit, a 5/8" spark plug socket, 6" extention bar for your ratchet, 3/8" ratchet and a torque wrench.

 

Per Bentley, VAG tool T40039 is for pulling "press-in" coils.
For V6 only - there is VAG tool T10029...(conventional spark plug wires)
Manual also says "wiggle free" press-in coil as well.
There is a VAG tool for the spark plugs (VAG 3122B), but a normal sparkplug socket and extension work fine.
Torque wrench is a must. I have one for in/lbs, and one for ft/lbs.
5mm is for intake manifold side section(s) for sure.
I'm doing mine tomorrow, and will do a short write-up. It doesn't look bad.
I'm afraid to even ask what the dealer would charge for 8 stock NGK's and labor to replace them...My guess is around 250.00 to 300.00?

 

If you want plugs for your W8 go to www.rockauto.com. They are less than $7 each. If you go somewhere else make sure you get the right ones. Some places are selling the V6 NGPs for the W8. No one here has posted a DIY for replacing plugs on a W8 for if you do it, document it for us all.

BTW, coil packs are easy to remove with your fingers. Unless you have an AEB engine which requires an Allen wrench.

 

BTW, coil packs are easy to remove with your fingers. Unless you have an AEB engine which requires an Allen wrench.

Agree - Also, line-up the spark plug wire leading out from the coil pack so theres slack when you pull-up on the pack, minimizing stretching of the wire to the hold clips and to the distributor.