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X3 E83 (2004 - 2010)
Talk about the E83 BMW X3 in this forum!

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  #1  
Old 02-26-2014, 03:41 PM
Tennis dad Tennis dad is offline
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ignition coil replacement

engine started running a little rough and service light came on this week. I brought it to my Indie right away and after diagnosing the problem replaced the ignition coil on #4 cylinder. Got out of the there for a little over $200 bucks the same day.
It seems that the rub is that this engine has an ignition coil for each cylinder and if one goes it's likely that the rest will.
Yikes! this sounds like trouble down the road repair-wise.
Comments? suggestions?
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  #2  
Old 02-26-2014, 07:37 PM
joylove joylove is offline
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Buy Bosch coil packs and fit them yourself.
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  #3  
Old 02-26-2014, 07:43 PM
mtbrdad mtbrdad is offline
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My 2003 Honda Odyssey and 2003 Taurus both have coil packs over the plugs and at 105k miles a few of the Hondas failed. I'd say they are pretty common items on most cars now and yes at some point they are going to fail.
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  #4  
Old 02-26-2014, 07:53 PM
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AzNMpower32 AzNMpower32 is offline
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2 of them went bad on my X3 back in 08.2013. They are easy to replace yourself; I bought the 2 for approx 72 $.
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  #5  
Old 02-26-2014, 09:37 PM
Burning2nd Burning2nd is offline
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you can get a set of 6 for under 400$
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"Burning 2nd is a lot like vitamin tonic. Overly harsh, tastes like crap, but somewhere in all that there's good intent......just have to learn to read between the lines, actually you have to squint really hard to see the good, but its there somewhere"
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  #6  
Old 02-27-2014, 03:11 AM
ncord ncord is offline
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Ignition Coil 2006 BMW X3 3.0i 6 Cyl 3.0L Bosch Ignition Coil X3 Bosch
Price: $ 29.95
Qty: 5.00
Part #: W0133-1662925
AUTOPARTS WAREHOUSE.COM
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  #7  
Old 02-27-2014, 04:42 AM
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cagui1223 cagui1223 is offline
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Quote:
Originally Posted by Tennis dad View Post
engine started running a little rough and service light came on this week. I brought it to my Indie right away and after diagnosing the problem replaced the ignition coil on #4 cylinder. Got out of the there for a little over $200 bucks the same day.
It seems that the rub is that this engine has an ignition coil for each cylinder and if one goes it's likely that the rest will.
Yikes! this sounds like trouble down the road repair-wise.
Comments? suggestions?
It is recommended to replace all 6 coil packs when one fails. They're extremely easy to replace. Each cost approximately $40.00 for a total of $240.

I had the exact same issue where 1 coil pack failed. At the time I only had funds to buy 1. Car has been running great since.
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  #8  
Old 02-27-2014, 04:45 AM
jlex jlex is offline
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Would be nice to know the year & no. of miles on the OP's car.

Also, has anyone tested their coils to see if they're going bad? Would a resistance test using a DMM tell you anything?
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  #9  
Old 02-27-2014, 02:22 PM
Tennis dad Tennis dad is offline
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thank you all for the quick and informative replies.
The vehicle is a 2008 X3 with 70k miles
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  #10  
Old 02-27-2014, 06:54 PM
Supercourse Supercourse is online now
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Few different price ranges mentioned above?

On checking, I see that the online discounted price for a Bosch coil is:

- about $30 for the M54 engine

- about $43 for the N52 engine

(Prices taken from eEuropeparts.com because for Canadians they do $19.99 shipping/brokerage/taxes included for orders over $199. U.S. orders over $99 get free shipping.)

Genuine BMW ones would be about twice the price I imagine.
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  #11  
Old 02-27-2014, 07:36 PM
swampX3 swampX3 is offline
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coil testing

we have tested a load of the small auto coil overs .....some decent results checking resis etc .....we test the megga marine units on ~ 50-100,000 bhp off gas fueled LNG tanker engines etc in the same manner......biggest problem is they mostly seem to start to fail under high heat while running......a good scope will catch the decay best I think......we do like the regular interval change method ......50ish thousand miles in autos.....do plugs and coils together and be as done with it as poss
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  #12  
Old 02-28-2014, 08:22 AM
joylove joylove is offline
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Quote:
Originally Posted by Supercourse View Post

- about $43 for the N52 engine.
Bargain. For me at least, I'd sooner do all the plugs and coils in one go, rather than spend my time dismantling the engine every few weeks doing the job piecemeal only to save a few bucks.

Do it once, do it right.
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  #13  
Old 03-01-2014, 01:59 PM
jlex jlex is offline
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So you guys are thinking I should go ahead and replace all the coil packs on my '05 X3 (has 90,000 miles)? Did all the spark plugs along w/ VC gasket last summer.
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  #14  
Old 03-01-2014, 03:04 PM
Burning2nd Burning2nd is offline
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no not unless they are bad...
replace whats bad.. and keep one on the shelf.
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  #15  
Old 03-01-2014, 06:03 PM
joylove joylove is offline
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Quote:
Originally Posted by jlex View Post
So you guys are thinking I should go ahead and replace all the coil packs on my '05 X3 (has 90,000 miles)? Did all the spark plugs along w/ VC gasket last summer.
Depends how much you value your time. Personally 6 lost weekends is a lot.
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  #16  
Old 03-03-2014, 04:48 AM
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cagui1223 cagui1223 is offline
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Quote:
Originally Posted by jlex View Post
So you guys are thinking I should go ahead and replace all the coil packs on my '05 X3 (has 90,000 miles)? Did all the spark plugs along w/ VC gasket last summer.
Goes back to the saying "If it ain't broken, don't fix it!".

Personally, if $$$ is not an issue then get 6 new coil packs. If they're working fine, not throwing out codes / misfires then keep the current ones.
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  #17  
Old 03-03-2014, 12:17 PM
jlex jlex is offline
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Quote:
Originally Posted by cagui1223 View Post
Goes back to the saying "If it ain't broken, don't fix it!".

Personally, if $$$ is not an issue then get 6 new coil packs. If they're working fine, not throwing out codes / misfires then keep the current ones.
You and I think alike.... maybe I'm just cheap, but I really hate to remove good parts unless there's a problem. In the case of an expansion tank, I'll make a pre-emptive strike to replace it as a failure there will surely leave you stranded. I'm thinking that if a single coil pack goes bad, I've still got 5 good cylinders to get me home... no emergency. I think I'll get one to throw in the glove box in case something happens if I'm on the road. A code should tell me which cylinder is going bad... from there, I should be able to replace it pretty easily in less than an hour.
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  #18  
Old 03-03-2014, 12:49 PM
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cagui1223 cagui1223 is offline
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If I had the funds, I honestly would change them. I like to think maybe the engine will run crisper? :P

It's all the other things can possibly go wrong that make you think twice before changing something that hasn't gone bad... For example:

Over the summer I decided to change the spark plugs on my sisters car. Very easy job on a Honda fit. As I was removing one of the bolts that held 1 coil pack in place, the bolt snapped in half. I was able to change the spark plugs, but now I couldn't hold down 1 coil pack in place. Drove it to the local shop which had to partially unmount the motor to tilt it forward in order to get the clearance necessary to torch the thing out. so a $40 job had just turned into a $250 job. Just two months ago she traded the car in for a brand new Subaru. Money that could have been saved.



Last edited by cagui1223; 03-03-2014 at 12:51 PM.
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  #19  
Old 03-03-2014, 01:23 PM
jlex jlex is offline
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Ouch... things like that happen. Takes skill to work on an engine, but luck is a necessary ingredient...
Don't know if it's hype or not, but some of the sites I've looked at say they should all be replaced at the same time... maybe voltage variations between old and new... who knows?
The least expensive Bosch set I've found can be had at AutohauzAZ for $152.64... free shipping. Still on the fence on this one although a full set isn't going to kill me like I thought.
Looks like the OP paid $200 for a single coil replacement at the stealership. DIY all 6 for about $150 isn't looking too bad.

Last edited by jlex; 03-03-2014 at 01:26 PM.
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  #20  
Old 03-03-2014, 02:16 PM
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cagui1223 cagui1223 is offline
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Quote:
Originally Posted by jlex View Post
... some of the sites I've looked at say they should all be replaced at the same time... maybe voltage variations between old and new... who knows?...
I've read this as well. Even the local shop that works on European vehicles said they should all be replaced even if only 1 fails.


Quote:
Originally Posted by jlex View Post
...The least expensive Bosch set I've found can be had at AutohauzAZ for $152.64... free shipping. Still on the fence on this one although a full set isn't going to kill me like I thought. Looks like the OP paid $200 for a single coil replacement at the stealership. DIY all 6 for about $150 isn't looking too bad.
Well, when you put it that way, 1 coil replacement at the stealership for $200 OR 6 pack of coils for $150 as a DIY? Certainly sounds reasonable to replace them all at the same time

Last edited by cagui1223; 03-03-2014 at 02:21 PM.
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  #21  
Old 03-03-2014, 05:18 PM
DangermouseX3 DangermouseX3 is offline
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I view these things as having been built to a certain tolerance and, on average, they will fail at x miles. However they won't all fail at once, more like on a bell-curve.

So I will replace the first one, by itself, but when that second one goes, then the failure rate is ramping up and it makes sense to do the remaining 5 together.

They aren't very expensive, but they aren't free either.

Just my 2c.


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  #22  
Old 03-04-2014, 03:38 AM
joylove joylove is offline
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Lets not forget, these are not fuses or light bulbs that either work or don't work; they are more like spark plugs in that their performance will degrade before they fail completely.
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  #23  
Old 03-04-2014, 04:38 AM
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cagui1223 cagui1223 is offline
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... their (coil packs) performance will degrade before they fail completely.
Well said!
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  #24  
Old 03-06-2014, 03:09 PM
rdc8118 rdc8118 is offline
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Quote:
Originally Posted by Supercourse View Post
Few different price ranges mentioned above?

On checking, I see that the online discounted price for a Bosch coil is:

- about $30 for the M54 engine

- about $43 for the N52 engine

(Prices taken from eEuropeparts.com because for Canadians they do $19.99 shipping/brokerage/taxes included for orders over $199. U.S. orders over $99 get free shipping.)

Genuine BMW ones would be about twice the price I imagine.
Thanks for the link (www.eeuroparts.com). Rolling in shipping/brokerage/taxes is definitly a plus - no surprises. Even with the difference in exchange rate, they're half the price quoted from local BMW dealer.
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