Ignition Coils

4.2 V8 40v Naturally Aspirated - 339bhp
Bhopper2
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Ignition Coils

Post by Bhopper2 » Mon Mar 01, 2010 6:25 pm

Hi all,

I have had 2 ignition coils fail over the last 4 weeks, and am therefore considering that it may also be worth replacing the other 6 to save myself future problems.

I have found them for sale at EuroCarParts for approx £25 each (S4 Ignition Coils) - does anybody know if these are any good, or is it worth paying the extra money for the OEM ones from Audi?

Does anybody have any suggestions for other alternatives that I should consider?

Many thanks,

Ben.

no_RS
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RE: Ignition Coils

Post by no_RS » Mon Mar 01, 2010 7:31 pm

Worth checking what the revision code is , latest I heard is rev Q but suggest you confirm with a stealer..

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Virdee Autos
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RE: Ignition Coils

Post by Virdee Autos » Mon Mar 01, 2010 9:28 pm

If buying from ECP, make sure its the Bremi make, and not any other.

I think another way to tell the newer ones is that they have a recessed top, unlike the flat original ones.
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Post by Bhopper2 » Mon Mar 01, 2010 11:26 pm

Hi,

Just checked and they are definitely the BREMI ones - are these ones good then?

Are there any better ones I should consider?

Many thanks,

Ben.

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verysideways
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Post by verysideways » Tue Mar 02, 2010 12:30 pm

I paid about that for coils from Doug at MRC.
We keep four spare in the car (since the S4 breaking down on tour would not be funny!).
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Virdee Autos
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Post by Virdee Autos » Tue Mar 02, 2010 10:14 pm

Yeah Bremi are OE

They have gone up slightly at the dealer. RRP is £28+VAT IIRC
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Noggy Blue RS4 - 710N's | Supersprint Exhaust | RS6 Calipers/RS4 Discs | Aero Wipers | B7 rear wiper | Pioneer AVIC-F10BT | Alcantara dash | Alcantara headlining | 15mm spacers | Pentagon Tints/Supaglass | After-run mod | Carbon steering wheel | R8 engine bay caps | Brushed Alu plate plinth |

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Post by Bhopper2 » Wed Mar 03, 2010 12:56 am

Excellent - many thanks for that!

I shall buy the BREMI ones from EuroCarParts and fit these.

Cheers,

Ben.

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chunky79
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Post by chunky79 » Wed Mar 03, 2010 7:30 am

Good look with the offside bank one's, they are a pain.
Are you changing the spark plug's at the same time?

Dunc
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Post by Bhopper2 » Wed Mar 03, 2010 8:00 pm

Spark plugs were done at the last service a few weeks ago, so they are fine.

Any advice on the offside bank? I can see that the cold air feed ducting will need to be removed, but I'm hoping the airbox itself can stay in place.

Cheers,

Ben.

chunky79 wrote:Good look with the offside bank one's, they are a pain.
Are you changing the spark plug's at the same time?

Dunc

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marv
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Post by marv » Thu Mar 04, 2010 11:07 am

I had one on the offside changed by an Audi Tech at the roadside, and I'm pretty sure he just removed the ducting, which is easy to do (I've had to do it quite a few times changing sidelight bulbs), but not the airbox.
| '04 S4 Avant (B6) | NOW SOLD :(

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chunky79
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Post by chunky79 » Fri Mar 05, 2010 7:49 am

I think i had to take the air box apart to change the coils on mine.
I changed all mine together cause thats what audi advise (probably to make money)

Dunc
previous- Pug 205 gti, 306 gti, 309 gti Goodwood.
Audi S3, S4 V8 avant.
Porsche Macan Turbo.
Gone but NEVER forgotten - C5 RS6 Misano red avant.

Now - Empty garage

If you don't know where you're going, any road will take you there!

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Post by Bhopper2 » Fri Mar 05, 2010 2:29 pm

I think you're right. Looking more closely at the engine bay, I can't see anyway of getting to the torx screw that holds the ignition loom in place at the rear offside (by cylinders 3 & 4) without getting the airbox out the way :cry:

Anybody got any good tips, or is it easiest just to remove the airbox to access the screw?

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chunky79
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Post by chunky79 » Fri Mar 05, 2010 5:10 pm

Just go for it mate. You'll be suprised at how quick you can do it. It's just soul destroying if you look in advance.

Dunc
previous- Pug 205 gti, 306 gti, 309 gti Goodwood.
Audi S3, S4 V8 avant.
Porsche Macan Turbo.
Gone but NEVER forgotten - C5 RS6 Misano red avant.

Now - Empty garage

If you don't know where you're going, any road will take you there!

Bhopper2
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Post by Bhopper2 » Sat Mar 06, 2010 10:23 am

ok, I'll give it a go :D

Many thanks for all your help - much apprecaited!

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Done it

Post by Bhopper2 » Sun Mar 14, 2010 7:51 pm

For those thinking of replacing all 8 ignition coils themselves, I have discovered it is not as daunting a task as I originally thought - even for a 'spanner novice' like me :D

Taking it very slowly this weekend, I had all 8 done in about 45 mins to an hour, including a short test drive and tea break after each bank was completed.

The nearside bank is fine, requiring just the coolant expansion bottle to be loosened from its bracket to allow the coil for cylinder 8 to be removed.

The offside bank is a little more tricky, requiring the top of the airbox to be loosened (but not entirely removed). This is a case of removing 2 screws to separate the top from the bottom of the airbox, two hoses to be removed, and the MAF connector to be disconnected. Once this is done, the top can be pulled upwards a few inches to make room to access the ignition coils at the rear of the engine (cylinders 3 & 4).

I used a 1 hour paid login (for 4 Euros) to www.erwin.audi.com for instuctions on removing the airbox cover - this was for my own peace of mind, though in retrospect it is fairly obvious once you get started.

Many thanks to all here that offered advice - much appreciated!

Cheers,

Ben. :D

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