E46 BMW Social Directory E46 FAQ 3-Series Discussion Forums BMW Photo Gallery BMW 3-Series Technical Information E46 Fanatics - The Ultimate BMW Resource BMW Vendors General E46 Forum The Tire Rack's Tire Wheel Forum Forced Induction Forum The Off-Topic The E46 BMW Showroom For Sale, For Trade or Wanting to Buy

Welcome to the E46Fanatics forums. E46Fanatics is the premiere website for BMW 3 series owners around the world with interactive forums, a geographical enthusiast directory, photo galleries, and technical information for BMW enthusiasts.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact contact us.

Go Back   E46Fanatics > E46 BMW > General E46 Forum

General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

Reply
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 04-26-2010, 04:09 PM   #1
Nicad
Registered User
 
Join Date: Oct 2009
Location: Toronto
Posts: 261
My Ride: e36 M3/4 e46 325it
Spark Plugs....How much??

I would bet it costs about $400 locally from a dealer to have the spark plugs changed once you factor in taxes and miscellaneous rag and solvent fees. I was shocked when they said $209 just for the Plugs from the local dealer.

I Bought them for $96 (same model NGK's) from a local supplier. I think there must be some counterfeit ones floating about.
Nicad is offline   Reply With Quote
Ads by Google

Guests, get your FREE E46Fanatics.com membership to remove this ad.
Old 04-26-2010, 04:16 PM   #2
2004bmw330ci
Registered User
 
Join Date: Dec 2007
Location: Thousand Oaks
Posts: 110
My Ride: 02 330ci 3pedals!
I paid about $15.00 each. My buddy got his for as low as $8.00...So it varys...
As for paying to get it done don't bother! It takes literally like 30mins to do!
2004bmw330ci is offline   Reply With Quote
Old 04-26-2010, 05:19 PM   #3
TLM
Registered User
 
Join Date: Feb 2005
Location: SF Bay Area
Posts: 70
My Ride: 2001 325i Touring
That wouldn't surprise me to see a $400+ bill for a spark plug change at a dealer.

It's a pretty easy job to do on your own though. $8.50 a plug at autohausaz.com and 30 mins of your time and you will save $340 bucks.

I searched around for info on plug change frequency and it seems pretty consistent most guys/gals here change plugs every 50-60K. That's what I'm doing as well and so far so good. Plugs had a bit of brown chalky stuff on them, but the insulator and electrode were still in decent shape.

If your car has over 100K might think about oxygen sensors too. Again, probably get a whopping big number if the dealer did the work, but you will again save a bundle by doing it yourself. It's also an easy 30 mins job (as long as you don't drop the socket down into the motor, doh!
TLM is offline   Reply With Quote
Old 04-26-2010, 05:41 PM   #4
Megalocnus
Registered User
 
Join Date: Oct 2008
Location: Los Angeles, CA
Posts: 2,008
My Ride: 05 330i ZHP/MT
NGK pack of six- $42.
http://www.bimmerzone.com/parts-spec...park-plugs.htm
I guess you can find them a bit chepaer than this elsewhere...
Megalocnus is online now   Reply With Quote
Old 04-26-2010, 07:08 PM   #5
E46330iguy
Registered User
 
Join Date: Sep 2009
Location: Canada,SK
Posts: 2,411
My Ride: Supercharged 330i
Spark plugs .com
__________________
Winter Authority When Hell freezes over,we'll play Hockey there too



you've Met a terrible fate haven't you ?


KONI /Michelin/Stoptec/Borla/ Bimmerbrake / MTechII/AA Stage one (for now) Automatic--->5 speed swap/ UUC High performance clutch kit

Questions about Header wrap? clickHere
Supercharger build thread click Here
E46330iguy is offline   Reply With Quote
Old 04-26-2010, 07:16 PM   #6
bAby norAA
Registered User
 
Join Date: Feb 2010
Location: Vermont
Posts: 513
My Ride: 01 BMW 330i
Quote:
Originally Posted by Nicad View Post
I would bet it costs about $400 locally from a dealer to have the spark plugs changed once you factor in taxes and miscellaneous rag and solvent fees. I was shocked when they said $209 just for the Plugs from the local dealer.

I Bought them for $96 (same model NGK's) from a local supplier. I think there must be some counterfeit ones floating about.
counterfeit spark plugs? lol

you paid way to much for spark plugs. next time shop around a bit, and you'll find much better prices.
__________________

| VF Supercharged Stage 1.5| Southbend Stage 2 Clutch | ZHP Cams | Technik Headers |
bAby norAA is offline   Reply With Quote
Old 04-26-2010, 08:30 PM   #7
Nicad
Registered User
 
Join Date: Oct 2009
Location: Toronto
Posts: 261
My Ride: e36 M3/4 e46 325it
Quote:
Originally Posted by bAby norAA View Post
counterfeit spark plugs? lol

you paid way to much for spark plugs. next time shop around a bit, and you'll find much better prices.
Everything from Jet impeller blades to Viagra has a counterfeit component if there is money in it. In Canada, we don't have as many options for discounted parts unfortunately.
Nicad is offline   Reply With Quote
Old 04-26-2010, 08:32 PM   #8
Nicad
Registered User
 
Join Date: Oct 2009
Location: Toronto
Posts: 261
My Ride: e36 M3/4 e46 325it
Quote:
Originally Posted by Megalocnus View Post
NGK pack of six- $42.
http://www.bimmerzone.com/parts-spec...park-plugs.htm
I guess you can find them a bit chepaer than this elsewhere...
Nice price, will remember that. I just wanted some while I had the car apart. That 6th coil sure gave me a hard time coming out. Will be quicker next time unless I forget how to do it.
Nicad is offline   Reply With Quote
Old 04-26-2010, 11:12 PM   #9
Rubenk
Registered User
 
Join Date: Mar 2010
Location: KCMO
Posts: 1,696
My Ride: M35A2
Im sorry guys, I cant help but laugh at you!

Total plugs cost about 12.50$ for me and its about 30 minutes worth of work.

Pay me 100$ and i'll do it for you parts included!!
Rubenk is offline   Reply With Quote
Old 04-27-2010, 12:19 AM   #10
Nicad
Registered User
 
Join Date: Oct 2009
Location: Toronto
Posts: 261
My Ride: e36 M3/4 e46 325it
Quote:
Originally Posted by Rubenk View Post
Im sorry guys, I cant help but laugh at you!

Total plugs cost about 12.50$ for me and its about 30 minutes worth of work.

Pay me 100$ and i'll do it for you parts included!!
What model plug are you getting 6 for $!2.50 for?
Nicad is offline   Reply With Quote
Old 04-27-2010, 12:25 AM   #11
Rubenk
Registered User
 
Join Date: Mar 2010
Location: KCMO
Posts: 1,696
My Ride: M35A2
Ngk-V-Power-Copper 2.49 each.

Those 4 tip plugs are a gimmick. Electricity takes the path of least resistance, those quad tip shits are not working like they advertise.
Rubenk is offline   Reply With Quote
Old 04-27-2010, 03:16 AM   #12
Megalocnus
Registered User
 
Join Date: Oct 2008
Location: Los Angeles, CA
Posts: 2,008
My Ride: 05 330i ZHP/MT
Quote:
Originally Posted by Rubenk View Post
Ngk-V-Power-Copper 2.49 each.

Those 4 tip plugs are a gimmick. Electricity takes the path of least resistance, those quad tip shits are not working like they advertise.
The quad tip is not meant to produce four sparks simultaneously. The primary purpose of this design is to extend the life of the spark plug. When one prong wears or oxydises excessively, the next one will take over. If there is only one ground electrode, the spark is gone when it wears out. A center electrode made of platinum alloy is also more durable than a copper one.

I replaced my sparks with NGK OEM at 120K miles. The old ones had some wear of course, but were still good. I've read people here saying their cars run better after they replaced spark plugs, but there was no noticeable improvement when I replaced mine.

Therefore you are very likely not saving any money with these cheap spark plugs in a long run since you are going to replace them more frequently.

Anyway, I'm glad these copper ones work for you, but don't want them in my car if you offer me $100 and come to install them yourself.

Last edited by Megalocnus; 04-27-2010 at 03:19 AM.
Megalocnus is online now   Reply With Quote
Old 04-27-2010, 11:18 AM   #13
Rubenk
Registered User
 
Join Date: Mar 2010
Location: KCMO
Posts: 1,696
My Ride: M35A2
If your plugs are "wearing" away like you speak of you have big problems, what you speak of simply doesnt happen. The only thing the other prongs do is shield the one prong that is arcing, therefore reducing the combustion mixture's exposure to spark.

I'm sure you'll find the majority of racers run copper plugs at their track. I challenge you to find any evidence that they are better than the single tip plug of your choice.
Rubenk is offline   Reply With Quote
Old 04-27-2010, 11:25 AM   #14
JJR4884
Registered User
 
Join Date: Oct 2006
Location: Nowhere
Posts: 18,183
My Ride: BMW
dealer charges $26 per plug haha

i bought mine for like $7 each off of alloemparts.com or something like that
__________________
JJR4884 is offline   Reply With Quote
Old 04-27-2010, 01:25 PM   #15
nathancarter
Registered User
 
Join Date: May 2007
Location: Riverview, FL
Posts: 1,394
My Ride: 02 330i
Quote:
Originally Posted by Rubenk View Post
If your plugs are "wearing" away like you speak of you have big problems, what you speak of simply doesnt happen. The only thing the other prongs do is shield the one prong that is arcing, therefore reducing the combustion mixture's exposure to spark.
oops, no. Google "spark plug electrode wear" and enlighten yourself.

Here, I'll save you some clicks:

This spark plug shown below has served its useful life and should be replaced. Voltage required to fire the plug has approximately doubled and will continue to increase the longer the engine operates.

Even higher voltage requirements (as much as 100%) above normal may occur when the engine is accelerated quickly. Poor engine performance and a loss of fuel economy are traits of worn spark plugs.






Quote:
Originally Posted by Rubenk View Post
I'm sure you'll find the majority of racers run copper plugs at their track. I challenge you to find any evidence that they are better than the single tip plug of your choice.
Long, reliable service life = better. Most platinum-topped 4-prong plugs are rated for 100k (though I choose to replace mine at Inspection II or about 60k intervals).

What's the service life of your copper plug of choice?

And, comparing "what racers do" to the street cars being discussed in this thread... well, it's simply not relevant. Do you run 100+ octane "like the racers do" when you're driving to work or the liquor store? No? GTFO.
nathancarter is offline   Reply With Quote
Old 04-27-2010, 01:38 PM   #16
quacktoduck
Registered User
 
Join Date: Oct 2008
Location: Seattle/Honolulu
Posts: 73
My Ride: e39
i got my ngk 2667s for 5.25each got the oreillys buddy discount but im sure i can get more
best plugs evarrrrrrr
quacktoduck is offline   Reply With Quote
Old 04-27-2010, 01:47 PM   #17
trizzuth
Registered User
 
Join Date: May 2005
Location: Rondoland
Posts: 5,093
My Ride: gobbles oil like a B
if I were you, I'd cross the freakin border since you are close and find an advance auto parts. Got mine there for $7 each, $42 total for the car.
__________________
trizzuth is offline   Reply With Quote
Old 04-27-2010, 02:27 PM   #18
Megalocnus
Registered User
 
Join Date: Oct 2008
Location: Los Angeles, CA
Posts: 2,008
My Ride: 05 330i ZHP/MT
Quote:
Originally Posted by Rubenk View Post
If your plugs are "wearing" away like you speak of you have big problems, what you speak of simply doesnt happen. The only thing the other prongs do is shield the one prong that is arcing, therefore reducing the combustion mixture's exposure to spark.

I'm sure you'll find the majority of racers run copper plugs at their track. I challenge you to find any evidence that they are better than the single tip plug of your choice.

Of course spark firing wears the electrodes- of any plug design. Ever seen a used plug?
The copper single ground electrode sparks have their advantages though - the copper has higher electric and heat conductivity. The latter helps when preignition becomes an issue - at very high RPMs, boosted engines injecting a lot of fuel, etc. This is why they are of choice for racing. However, the race cars' spark plugs are replaced just as often as brakes and tires - sometimes on a daily basis. If they are kept running longer, the copper would quickly become of disadvantage.

The shielding effect of the non-arcing three prongs you are talking about should be negligible if anything - these prongs are not standing between the arc and the fuel mixture.

You will convince me the copper plugs are better for my stock engine if there is any credible evidence that they have ever improved performance, reduced emmisions, etc.
While no such evidence exists, I'll stick with the more durable and reliable OEM spark plugs, thank you very much.

Last edited by Megalocnus; 04-27-2010 at 09:50 PM.
Megalocnus is online now   Reply With Quote
Old 04-27-2010, 02:56 PM   #19
Stingray230sx
Registered User
 
Join Date: Apr 2008
Location: Charleston WV
Posts: 191
My Ride: 2001 330Ci,
9.39 each from my local napa (oem and in stock)...so 56.34 plus tax out the door
Stingray230sx is offline   Reply With Quote
Old 04-27-2010, 03:49 PM   #20
Kubica
Registered User
 
Join Date: Apr 2008
Location: Boston
Posts: 4,378
My Ride: 2003 325xi
Quote:
Originally Posted by Rubenk View Post
Im sorry guys, I cant help but laugh at you!

Total plugs cost about 12.50$ for me and its about 30 minutes worth of work.

Pay me 100$ and i'll do it for you parts included!!
I can't help but laugh at you since you used the wrong plugs.
Kubica is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Censor is ON





All times are GMT -5. The time now is 07:57 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
(c) 1999 - 2011 performanceIX Inc - privacy policy - terms of use