Muray

I bought a torque wrench so I can take the wheels on and off correctly without damaging the rotors. However, it didn't come with lug nut adapters. I couldn't tell what size they were by looking at them, especially since I have the titanium package and they were covered by plastic caps. Which almost got damaged as I tried to take them off. Know any way of taking those plastic caps off without damaging them? And more importantly, what size lug nuts do our cars use? And just for kicks I removed to the spare tire to look at the spare tire kit...pretty neat but what is the big power-amplier looking thing right under the spare tire? Taking those plastic caps off is gonna be a bitch if I don't have the right tools in case of a flat!

m444

The lug heads are 17mm. The tool to remove the caps in in the trunk tool kit.

http://www.ecstuning.com/Audi-B8_S4-Quattro-3.0T/Wheels/Tools/ES4328/

Muray

Okay thanks, I'll look for it in the trunk.

thomasjordan

Are you looking at the battery under the spare tire? The amps are in the side of the trunk above the wheel well.

redrocker55

Yep...it's the battery and it's by far the biggest battery I've ever seen in a passenger vehicle. That thing is industrial sized. Unless someone has come out with a replacement battery compatible with our S4 in the past 6 months...I believe that battery is going to be tough to find anywhere but at a dealer.

skiracerblah

Amp is on driver side trunk compartment. Its the metal box with the aluminum heatsinks at the top



The black box below it is aftermarket amp...

Muray

I must be looking at the battery. I won't be finding it at the local Autozone for sure.