[Anth_Mercuri]

hey Guys,


Can someone direct me to a reliable source to purchase these parts?

I am confident to do a DIY, just need some support in which parts i should be buying.

Obviously BMW have quoted me $300 to change the spark plugs which i think i can do myself for a cheaper price.


What iridium plugs do you recommend?

and where can i source the coils?

Thanks

[totti84]

Owners manual should tell you what spark plug you need in the specifications section, then buy them on ebay

[sjf430]

I bought my coils and plugs from advan, just give them ur Vin number and nothing else to worry about (from memory it was $60 a coil..forget about plugs) and they get it for you same day before a certin time

[Drill]

This might help with the coil install

[aiball]

I was looking into this not too long ago:

oem bosch coils
$25ea + $40 postage for the set

http://www.ebay.com.au/itm/380812967...84.m1423.l2649


spark plugs - follow whats in the manual for part number.
if i remember correctly, pricing is not too bad comparing local/overseas sources.

[Scotty89]

A common replacement is NGK 5992 platinum iridium spark plugs.

They have a single grounding probe, which allows you to gap them. It is recommended to gap them from 0.022" to 0.025". They come out of the box with a much larger gap which will not work at all in the BMW.

Edit: Sorry I just read you have a 325i. Just get the OEM bosch plugs - there's no point getting gappable plugs if you're not modding boost or performance.

[bmshez]

Is it worth changing the plugs and coils when your N52 hits a certain number of kms? Or only when you start noticing the typical signs?

[Drill]

Originally Posted by bmshez

Is it worth changing the plugs and coils when your N52 hits a certain number of kms? Or only when you start noticing the typical signs?

Misfires and rough idling are a sign that they need replacing
Also good to change them if you are doing a Cobb or JB4 tune
I did my sparks and ignition coils at 100K cost around $600 all up

[Scotty89]

Originally Posted by Drill

Misfires and rough idling are a sign that they need replacing
Also good to change them if you are doing a Cobb or JB4 tune
I did my sparks and ignition coils at 100K cost around $600 all up

I thought this when I first opened the thread too, but I keep forgetting that it's a 325, so no JB4.


I wouldn't bother changing them unless you have rough idle or check engine light.

The reason it is often recommended to replace them is with a tune on the 335's, it is common to get limp mode if the spark plugs or coils are old.

I had limp modes on my 335 when standard, until I changed spark plugs and coils. Without boost on the 325, I'd expect it'd be much less of a problem.

[djpro1]

get em for about 35$ each delivered a pop (amazon sometimes has some good deals for bosch coils).

Will take you only 30 mins to replace them all if you know how to get the engine cover off.

[essex_lad]

bmw are doing a recall on the 325 and 330 coils so you can get them done for free.

[Anth_Mercuri]

Originally Posted by essex_lad

bmw are doing a recall on the 325 and 330 coils so you can get them done for free.

How current is this?

If i can my local BMW they will do the replacement?

[essex_lad]

I had mine done about 4 months ago and yer I just asked them to look up recalls on the off chance and coils popped up then they booked my car in and done it free of charge.

[Anth_Mercuri]

Originally Posted by essex_lad

I had mine done about 4 months ago and yer I just asked them to look up recalls on the off chance and coils popped up then they booked my car in and done it free of charge.

Just called my Local dealer and no Coil Recall available. he said there has never been one. Should i contact other dealers?

[essex_lad]

what engine is it?

[Anth_Mercuri]

Originally Posted by essex_lad

what engine is it?

325i

2.5L v6

N52

[7smurfs]

Supercheap sell the plugs for something like $80-$100 for set of 4

[SPQR M3]

Originally Posted by Anth_Mercuri

325i

2.5L in-line 6

N52

Fixed that for you.

[Drill]

Originally Posted by Scotty89

I thought this when I first opened the thread too, but I keep forgetting that it's a 325, so no JB4.


I wouldn't bother changing them unless you have rough idle or check engine light.

The reason it is often recommended to replace them is with a tune on the 335's, it is common to get limp mode if the spark plugs or coils are old.

I had limp modes on my 335 when standard, until I changed spark plugs and coils. Without boost on the 325, I'd expect it'd be much less of a problem.

Oh r we talking 325? My bad.... I should pay closer attention

[essex_lad]

ah the recall was for n53 engines.