Touareg Ignition Coil Conversion

[redneck truck]

I took Jeremy@034's word that the coils for an '04 v8 Touareg produce a more powerful spark and enable the use of plugs with bigger gaps. My initial impression is that they are no different; the only judge will be a top speed pull to see if I picked up any power :-) either way, I've got 20 fewer bolts to remove every time I want to pull my valve covers (I also clearanced the engine cover brackets so the coils can slip past them, making removal unnecessary), so thats nice.

So, I've got 8 factory 4.2 coils available if anyone has the need for them. All Hitachi yellow bolt-down 06B 905 115 E.

[alterdcreations]

is it a direct swap?

[redneck truck]

Yup. You just need the base plates (part #077 905 390, approx. $5 each) that snap down into the holes formerly used to secure the coils. I'll post up a few pictures when I get back to the computer.

[redneck truck]

[alterdcreations]

Very cool! Thanks for sharing

[4ringAR]

Clean! I wonder if you could cut those spacers to 3-coils(instead of 4) and use them for the 2.0T coil swap instead of paying $100+ for billet ones....

[redneck truck]

What do you mean by 3-coils?

[4ringAR]

For the 2.7T...since its a V6, there are 3 coils per bank, not 4.

Or are those spacers individual...I cant tell if its one big spacer that spans the whole bank or if they are individual.

[redneck truck]

Nope, one spacer. Does the 2.7T valve cover have the bolt holes for the coils?

[redneck truck]

Misspoke: one spacer per coil. Guess that means I did a good job on the barbecue grill painted valve covers, eh?

[4ringAR]

Yeah, the APB 2.7(early allroad/A6, and all S4) have 2-bolt coil packs, newer 2.7's(BEL code) have pushdown coilpacks already.

And yes, did a good job matching the color on it. I couldnt tell!

[Vinchenzo51]

Yeah if those base plates work on the APB motor, the S4 guys will be thrilled. They are paying $100 for billet plates through 034.

For the 2.7T, its like $18/coil for the 2.0 coils, then it would be $5 per plate (using the ones you found). Dre just bought 2.0 connector repair kits for dirt cheap and made his own (so thats another cost saving option) which would make this 2.0 coil conversion for the B5 guys almost 1/3 the price they currently pay (which is like $600 or something lol)

[Castor Troy]

interesting. next time a coil dies on the s6, i'll be doing this

[redneck truck]

I keep reading about connector repair kits. What fails?

[4ringAR]

I keep reading about connector repair kits. What fails?

You buy the connector repair kits to wire in the 2.0T coils and delete ICMs. (if youre good at wiring)

[redneck truck]

Is it a cut/splice job, or does it require de-pinning? How long are the kits?

[Scotty@Advanced]

You buy the connector repair kits to wire in the 2.0T coils and delete ICMs. (if youre good at wiring)

The 4.2 ICMS are already in the coils.

[blkrhyno]

Is it a cut/splice job, or does it require de-pinning? How long are the kits?

I would like to know this also, if I wanted to delete my ICM is it just a cut/splice job ?

[alterdcreations]

so us 4.2 guys do not need to re-pin correct?
my 4.2 is like red neck's...4 wire connector

[redneck truck]

Correct.

[A6Avant]

Very cool

[Gumby]

This is really cool... Do you have a part number for the coil bracket? I'd love to see if I can get one to work on my a4.

[4ringAR]

This is really cool... Do you have a part number for the coil bracket? I'd love to see if I can get one to work on my a4.

Its Part# 077 905 390

Looks like genuineaudiparts.com has them for under $4/each, so about $15 for 4, $23 for 6, plus shipping. Super cheap. Id be pretty motivated to do this swap if these work instead of the billet machined pieces ECS/Integrated currently sell for over $100/set.


Post your results if you try it.

[ddillenger]

I inquired into having the coil plugs made overseas, price is reasonable but I don't have a need for 1000 of them-lol. You can get them on ebay for around 10 bucks per for you 2.7 guys. Couple that with 20 dollar coils and you can do the full conversion for under 200 bucks.

[Gumby]

Its Part# 077 905 390

Looks like genuineaudiparts.com has them for under $4/each, so about $15 for 4, $23 for 6, plus shipping. Super cheap. Id be pretty motivated to do this swap if these work instead of the billet machined pieces ECS/Integrated currently sell for over $100/set.

Post your results if you try it.

It doesn't even look like it'll be that much. From rednecks picture it looks like the bracket is a single piece for all four cylinders. If that's the case, you would only need one for a 1.8t, and two for a 2.7t. You would just have to trim one cylinder off for the v6 cars.

[4ringAR]

X-posted to the S4 forum
http://www.audizine.com/forum/showth...18#post8401818

[4ringAR]

It doesn't even look like it'll be that much. From rednecks picture it looks like the bracket is a single piece for all four cylinders. If that's the case, you would only need one for a 1.8t, and two for a 2.7t. You would just have to trim one cylinder off for the v6 cars.

he said they are individual

[Gumby]

he said they are individual

I realized that after I looked up the part number you posted. I just skimmed over the thread earlier.

Reading comprehension: fail.

[redneck truck]

I realized that after I looked up the part number you posted. I just skimmed over the thread earlier.

Reading comprehension: fail.

Haha, we've all been there! Does the factory 2.7t pin fit into the 4.2 connector? If it does, just buy 6 blank 4-pin connectors and 6 pins with wire leads. I bet they're $3 a piece, so you put the extra pin in the empty hole and splice it to where it needs to go, you're only clipping one wire, rather than your whole harness.

Alternately, isnt the extra pin just another ground? Buy a lot of brown wire and some plastic wire loom and run all the new pins to common grounds on the heads, and rewrap the harnesses with new tape and loom.

[csosnowski]

Did your adapters come with the gaskets or do they even need them? I was checking out the parts diagram and noticed there is a gasket thats meant to go under the adapter plate. Where I live they use crushed lava on the roads for traction and it gets everywhere so I want to seal it out from getting in the spark plug holes.

[redneck truck]

There is an o-ring groove cut in the hitachi coil to attempt to seal it to the valve cover. However, the plates have no such groove, and when I pulled them off the motor, no gasket or o-ring was there. However, the new Touareg coils have an airtight rubber barb fitting that seals them to the spark plug bores, so no gasket should be necessary.

[csosnowski]

I see, well i ordered the little gaskets anyway. Only $3 each, the parts diagram looks like they go beneath the adapter plate.

[redneck truck]

I'd like to see this diagram. Please post up a picture so i can make some sense of it. Keep in mind that if you're using parts not specifically intended for that platform, the factory parts diagram may no longer apply. While you're at it, take a look at the new coils and see how well the rubber at the tops of the sticks seals up the spark plug bores. The gaskets were necessary before because the original coils did not seal off the bores. The snap-down adapter plates use christmas tree fasteners and will not exert a clamping load on a rubber seal, so they will do no good and may adversely impact coil fitment.

[csosnowski]

[redneck truck]

That's interesting! Maybe it was a later revision. What are the gaskets made of? The only ones I've seen are an o-ring shaped like the plate, with a round cross-section. Maybe a flat, sticky gasket would work, but I still don't believe they are necessary.

[redneck truck]

Does that gasket have a part number?

[geeky]

Cross Post from the S4 section:

They showed up today.




They fit well, but with the way 2 of the corners are radiused, will not cover the hole in our vc completely. Keep this in mind if you are one to get in there often with a hose and clean the engine. Also nice to see 2 sets of indexing slots.




Side by side with an alum set I have. Thickness is close enough.




Not sure how the washer will fit in here with no groove. I like ddilingers idea with the rtv. Might help hold the adapter on when pulling the coils.





Not sure when I will get around to installing. Will prob get my car up and running first on the stock setup, then switch over.
Live Dave said, b6 3.0 look shorter and the indexing tabs might need to be modded to work (they seem too thick for the slots).

[redneck truck]

I'm probably going to drill all the adapters and run some 6mm plastic windscreen screws down the bores. that way, they're removable, but only when I say. The christmas tree clips wear out quickly.

[ilyafil]

AWESOME!!! I was just about to dish out $100 for the black billet ones!