Coil packs

4.2 V8 40v biturbo - 450 bhp
4.2 V8 40v biturbo - 480 bhp (plus)
Foxmeister
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Coil packs

Post by Foxmeister » Fri Jan 20, 2023 8:46 pm

Are these still available from Audi or does anybody know where they can be purchased? (Original)

Or as an alternative, which other non OE are tried and tested and a good alternative?

Foxmeister
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Re: Coil packs

Post by Foxmeister » Sat Jan 21, 2023 3:29 pm

Also, which is considered as cylinder 2, from front looking at engine, is it left side second plug towards the windscreen?

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Shoppinit
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Re: Coil packs

Post by Shoppinit » Sat Jan 21, 2023 4:02 pm

Second from the front on the left when looking at the engine from the front of the car.
Daytona RS6 C5 Avant. Viper'd, Billies, Waggers, MTM box brain, C6 stoppers, xcarlink, R8 coolant cap (woohoo)
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."

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Shoppinit
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Re: Coil packs

Post by Shoppinit » Sat Jan 21, 2023 4:24 pm

Plenty of possibilities on autodoc:

https://www.autodoc.co.uk/spares-search ... 06B905115E

I'd probably go for a Beru one. Or NGK.
Daytona RS6 C5 Avant. Viper'd, Billies, Waggers, MTM box brain, C6 stoppers, xcarlink, R8 coolant cap (woohoo)
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."

Foxmeister
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Re: Coil packs

Post by Foxmeister » Sat Jan 21, 2023 5:15 pm

Shoppinit wrote:
Sat Jan 21, 2023 4:02 pm
Second from the front on the left when looking at the engine from the front of the car.
Cheers Shopp, started the job today and found the wiring has original markings so it’s the one expected and as you’ve pointed out 👍🏻

Foxmeister
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Re: Coil packs

Post by Foxmeister » Sat Jan 21, 2023 5:19 pm

Shoppinit wrote:
Sat Jan 21, 2023 4:24 pm
Plenty of possibilities on autodoc:

https://www.autodoc.co.uk/spares-search ... 06B905115E

I'd probably go for a Beru one. Or NGK.
It’s currently Hitachi that’s in and look to be oem, are they notoriously crap and better to get different or replace with Hitachi as all seem the same?

This is a if need be scenario, came back from MOT with it missing and they scanned and said cylinder 2, expect it to be the coil pack etc, plugs are really due now so replacing them first and see if that cures it, if not it’s coil next

Currently removing Denso Iridium IK22, should I be concerned? They seem to be similar price to NGK and that’s what I’m putting back in. Plug 2 looks a bit wet, I’ll follow up with some pics as I go, more on it all tomorrow as I’m out for a good feed tonight, back on it first thing

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Re: Coil packs

Post by Mɐʇʇ » Sun Jan 22, 2023 12:35 pm

I’ve got hella ones in from ECP. They have been fine.
https://www.eurocarparts.com/p/hella-413440400
"not a professional engineer, mechanic and mechanist"

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Re: Coil packs

Post by Mɐʇʇ » Sun Jan 22, 2023 12:36 pm

Re. Plugs. Only put the correct OE NGK ones in, imvho.
Too many times I’ve used an equivalent on something and then had to chase niggling misfires and coil pack failures, only to eventually reset to the correct NGK ones. (My old Saab was very particular!)
"not a professional engineer, mechanic and mechanist"

steve2003rs6
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Re: Coil packs

Post by steve2003rs6 » Sun Jan 22, 2023 1:04 pm

Yeah NGK only
I think I read in the FAQ section.
Use others at your risk or something like that.
So I have always used NGK.

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Shoppinit
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Re: Coil packs

Post by Shoppinit » Sun Jan 22, 2023 4:34 pm

Yeah. The NGK OE spec ones only. Otherwise you’re playing Russian roulette.
Daytona RS6 C5 Avant. Viper'd, Billies, Waggers, MTM box brain, C6 stoppers, xcarlink, R8 coolant cap (woohoo)
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."

Foxmeister
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Re: Coil packs

Post by Foxmeister » Sun Jan 22, 2023 8:35 pm

Well I discovered the Denso are very fine in comparison to the NGK, electrode tip etc

Anyway, here’s some pics of how it went

Here’s plug no 2
3A6E8DD7-CBB0-457D-9150-9E4543B031CA.jpeg
CAEE6E31-6166-4E32-83A7-43BE72677FAA.jpeg
Compared to the other 3
A288C163-F894-4EB2-B20E-53FD4BBA131A.jpeg
They look healthy enough, but 2 does have a cleaner electrode which would indicate the non firing/coil issue

First 4 out and new NGK ready to go in
2E97C408-B97B-407E-83DE-756426E8E753.jpeg
Cheeky in progress pic
D0C9891D-F610-42BF-8D27-1458509B936F.jpeg

Foxmeister
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Re: Coil packs

Post by Foxmeister » Sun Jan 22, 2023 8:43 pm

I found this on the other bank, first plug at front of engine
3434CDFC-042A-4E08-864F-82C49D84E70E.jpeg
Is this normal? Or has somebody knackered a thread on a coil previously? It wasn’t even in tight, came out in my hand
E3DA0913-7F8F-4CA4-AD7F-75705E4C09CA.jpeg
I managed to get it to catch putting it back in, so it’s got a better fit now at least

New vs old
B6A44D70-7039-4870-AC2F-AFC526E89ABF.jpeg
And it going back together
C22C048D-DD4B-4B10-BDDA-2303C26B1ABB.jpeg
The results????


Balls… still missing and eml on, so a new coil has been ordered and awaiting now to go back through it all again soon

All removed
432F5CDE-8A8E-4508-A265-3BD70F525429.jpeg
Definitely due a change anyway and looking forward to the first proper drive after the coil is swapped to see how the NGK perform but expect I should notice the difference

Lander91
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Re: Coil packs

Post by Lander91 » Sun Jan 22, 2023 10:47 pm

Is that your garage work bench?

Capture33232.JPG
Also, have you done the trick of swapping the coil in question to another cylinder and seen if the error follows it?

Foxmeister
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Re: Coil packs

Post by Foxmeister » Mon Jan 23, 2023 8:22 am

That’s the kitchen Lander, no women in my house to nag me anymore :wink:

No, haven’t done the swap as I don’t have a code reader and it’s a lot to strip and assemble etc, tbh the coils aren’t as expensive as I expected so cheap enough to have a bash, if it’s not that I’m definitely snookered anyway

Lander91
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Re: Coil packs

Post by Lander91 » Mon Jan 23, 2023 10:50 pm

Foxmeister wrote:
Mon Jan 23, 2023 8:22 am
That’s the kitchen Lander, no women in my house to nag me anymore :wink:

No, haven’t done the swap as I don’t have a code reader and it’s a lot to strip and assemble etc, tbh the coils aren’t as expensive as I expected so cheap enough to have a bash, if it’s not that I’m definitely snookered anyway
Kitchen, workshop, bathroom, bedroom.. either way I like your style! Get a bottle of Classic Laddie in there to even out the colour palette.

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