[TT3 iN NyC]

Did a few pulls with my new e-tune and got a CEL. No reduced power message but idle was very rough.

I have about 39,700 miles. Do you think it's wise to replace the coil packs along with the spark plugs?

[firemanjust1]

I would do it all at once why not its cheap and it is good maintenence. If not you will have to deal with same issue on another cylinder at any point in the near future.

[TT3 iN NyC]

Originally Posted by firemanjust1

I would do it all at once why not its cheap and it is good maintenence. If not you will have to deal with same issue on another cylinder at any point in the near future.

Makes sense. Thanks!

[TT3 iN NyC]

Does anyone know where I can get oem coil packs online? Or the latest part number?

[135Pats]

ECS, Turner, etc. I think I ended up buying coils from Amazon last time heh.

For reference, I do plugs every 10K, coils every 20K. It's overkill but the single turbo cars tend to blow through plugs quickly.

[TT3 iN NyC]

Originally Posted by 135Pats

ECS, Turner, etc. I think I ended up buying coils from Amazon last time heh.

For reference, I do plugs every 10K, coils every 20K. It's overkill but the single turbo cars tend to blow through plugs quickly.

Thanks Pat.

I was on the ECS tuning website. There's one complete set for $417 that is OEM BMW labeled and one for $317 that is Bosch. Any difference between the two of them besides the $100 difference?

[MK335i]

Originally Posted by TT3 iN NyC

Thanks Pat.

I was on the ECS tuning website. There's one complete set for $417 that is OEM BMW labeled and one for $317 that is Bosch. Any difference between the two of them besides the $100 difference?

I just replace all 6 of mine (coils and Sparks), I ordered the stock bosch spark plugs off some random site and DELFI coils off of Amazon.

Here is the link for the coil.

http://www.amazon.com/gp/product/B00...?ie=UTF8&psc=1

I can't find where I ordered the sparks.

[135Pats]

Originally Posted by TT3 iN NyC

Thanks Pat.

I was on the ECS tuning website. There's one complete set for $417 that is OEM BMW labeled and one for $317 that is Bosch. Any difference between the two of them besides the $100 difference?

Go OEM/Bosch. They're basic spark components, nothing exotic here.

I always buy 6+1 so that way I have a fresh coil for testing if/when inevitable misfires turn up.

[335NJ]

Replace all 6 plugs, I wouldn't replace the coils unless I knew they were old/high mileage, or determined faulty. Move the coil from the missing cylinder if it continues to misfire after plugs and see if the misfire follows it, then replace that coil.

[TT3 iN NyC]

Originally Posted by 335NJ

Replace all 6 plugs, I wouldn't replace the coils unless I knew they were old/high mileage, or determined faulty. Move the coil from the missing cylinder if it continues to misfire after plugs and see if the misfire follows it, then replace that coil.

I have about 40k miles/7 years on the original coils. I don't think they were ever changed.

[335NJ]

Originally Posted by TT3 iN NyC

I have about 40k miles/7 years on the original coils. I don't think they were ever changed.

Doesn't necessarily mean they're bad, but I have about the same mileage/time as you without any issues on the coils, however everyone's car is different. To play it safe you could buy the coils, but I wouldn't say you HAVE to unless they're a problem.

[TT3 iN NyC]

Originally Posted by 335NJ

Doesn't necessarily mean they're bad, but I have about the same mileage/time as you without any issues on the coils, however everyone's car is different. To play it safe you could buy the coils, but I wouldn't say you HAVE to unless they're a problem.

Got ya. Thanks!

[mweisdorfer]

Coils are usually good for 100k if you do not track the car. If you track it, probably around 50k.

Plugs on an N54 need to be replaced every 45k for a daily driver. If you track it, probably 25k.

Make sure you look into using some dialectic grease for the coils.

[TT3 iN NyC]

Originally Posted by mweisdorfer

Coils are usually good for 100k if you do not track the car. If you track it, probably around 50k.

Plugs on an N54 need to be replaced every 45k for a daily driver. If you track it, probably 25k.

Thanks. I've had the car for 7 years. FBO for about 3.5. I've changed the plugs once before but never the coils. I don't track, only 39,700 miles on an 07. Think coils can go bad with time?

[nikitino25]

Originally Posted by MK335i

I just replace all 6 of mine (coils and Sparks), I ordered the stock bosch spark plugs off some random site and DELFI coils off of Amazon.

Here is the link for the coil.

http://www.amazon.com/gp/product/B00...?ie=UTF8&psc=1

I can't find where I ordered the sparks.

Those are really cheap, how are they working for you? Any reason to get OEM or Bosch instead of these?

[dbond]

Originally Posted by nikitino25

Those are really cheap, how are they working for you? Any reason to get OEM or Bosch instead of these?

Why get aftermarket if original Bosch is the same price?

http://www.amazon.com/BMW-E82-Igniti...+0+221+504+470

[nikitino25]

Is Bosch the OEM supplier?

[Jeff@TopGearSolutions]

Originally Posted by 335NJ

Replace all 6 plugs, I wouldn't replace the coils unless I knew they were old/high mileage, or determined faulty. Move the coil from the missing cylinder if it continues to misfire after plugs and see if the misfire follows it, then replace that coil.

I second this.

[335NJ]

Originally Posted by nikitino25

Is Bosch the OEM supplier?

Yes.

[TT3 iN NyC]

So the car sounds like a damn diesel truck when it's started. lol. Would it be safe to drive it like that to the shop?

I downgraded to the stage 2 drive map and car threw the following codes...previously I had a PTF map

P29D0
P30A3
P29CD
P29CC

[MK335i]

Originally Posted by dbond

Why get aftermarket if original Bosch is the same price?

http://www.amazon.com/BMW-E82-Igniti...+0+221+504+470

I ordered both sets......

the Bosch ones are from some dude in California, came in no box, all 6 coils in one bag, inside a postage bag, inside another postage bag.

Looked like he just found 6 bosch used coils laying around his garage and shipped them. they were covered in dust so I returned those.

The DELFI all came in separate boxes in sealed bubble wrap bags.

You take your choice.....

[MK335i]

Originally Posted by nikitino25

Is Bosch the OEM supplier?

Yes BOSCH is the OEM but the DELPHI ones I purchased are great.