***spark Plug***

[Ahbengdriver]

1. how often should SP be changed

2. What is a good spark plug to use on our BMWs

3. What is the effect of using a SP which is not in good conition.

 

[futron.sim]

Re: ***spark Plug***

1. How often? That depends on what plugs you are using. If using normal copper plugs, should be around 20-30,000KM. If iridium ones, it will be longer. Some have claimed to use them over 100K.

2. Good plugs? Denso/NGK plugs are good. Bosch IR fusion is another good one.

3. Engine stuttering, misfiring....are common issues associated with worn out plugs.

 

[yogi_lite]

Re: ***spark Plug***

Why not use original BMW spark plugs? i recently reverted back to originals and i do feel the difference. Should be able to last you 60,000km...

 

[T6]

Re: ***spark Plug***

When it comes to spark plus, I also advocate using OEM ones. They are the most reliable to me.

 

[Jason8822]

Re: ***spark Plug***

what is the brand and type of the oem plug?

 

[Ahbengdriver]

Re: ***spark Plug***

what is the brand and type of the oem plug?

good question. BMW always 'white label' one . Do they use Bosch?

BTW, i recently experience jerking in my 335 when I WOT on a few occasions. Its been suspected that I have a fuel pump problem which is gonna cost me some $$ to replace . Was wondering if spark plugs could also be an issue. Car has done 22000 km, could any of the spark plugs be an issue?

 

[kenntona]

Re: ***spark Plug***

BTW, i recently experience jerking in my 335 when I WOT on a few occasions. Its been suspected that I have a fuel pump problem which is gonna cost me some $$ to replace. Was wondering if spark plugs could also be an issue. Car has done 22000 km, could any of the spark plugs be an issue?

Mis-firing? Possible with cylinders 5 & 6. Gotta drop by BVO to verify.......

 

[Ahbengdriver]

Re: ***spark Plug***

Mis-firing? Possible with cylinders 5 & 6. Gotta drop by BVO to verify.......

pls elaborate WTF is mis-firing as I ve never heard this term since after I ROD from national sevice .

How come yr cylinder 5 n 6 ok, or are they more tuakee?

 

[Jason8822]

Re: ***spark Plug***

Read from Denso and NGK website that misfiring could be due to worn plugs.
Try going to their website for some idea what is misfiring. IA IA ... haha

DENSO SPARK PLUGS

This jerking is quite obvious misfiring because the aircon cutting out and in does not cause such big respond neither does the change in the cam setting etc.

I experience such jerking recently while waiting at traffic light and my plug is 45k now, but PML told me its due to change only at 100k.
Anyway, i will be going PML before CNY for oil change after which will change my plug to denso iridium with slightly colder heat range (IK-22) at outside workshops.

 

[futron.sim]

Re: ***spark Plug***

good question. BMW always 'white label' one . Do they use Bosch?

BTW, i recently experience jerking in my 335 when I WOT on a few occasions. Its been suspected that I have a fuel pump problem which is gonna cost me some $$ to replace . Was wondering if spark plugs could also be an issue. Car has done 22000 km, could any of the spark plugs be an issue?

Only way to be sure is to remove your plugs to check. But its possible for plugs to foul esp. by carbon or overheating if its not of the correct heat range.

 

[Ahbengdriver]

Re: ***spark Plug***

When it comes to spark plus, I also advocate using OEM ones. They are the most reliable to me.

Read from Denso and NGK website that misfiring could be due to worn plugs.
Try going to their website for some idea what is misfiring. IA IA ... haha

DENSO SPARK PLUGS

This jerking is quite obvious misfiring because the aircon cutting out and in does not cause such big respond neither does the change in the cam setting etc.

I experience such jerking recently while waiting at traffic light and my plug is 45k now, but PML told me its due to change only at 100k.
Anyway, i will be going PML before CNY for oil change after which will change my plug to denso iridium with slightly colder heat range (IK-22) at outside workshops.

how much is the DENSO ? u changing all 6 plugs?

 

[satinGHOST|r!der]

Re: ***spark Plug***

how much is the DENSO ? u changing all 6 plugs?

From what I have experienced so far, OEM is by far the most reliable ones. DENSO ones are not designed for our rides because there are issues with gapping which causes the misfiring. Also, the OEMs to me, have a better reliability rate than after market ones. Thats just my personal experience.

 

[totoseow]

Re: ***spark Plug***

anyone here heard or use brisk plugs?

 

[Jason8822]

Re: ***spark Plug***

how much is the DENSO ? u changing all 6 plugs?

Got a quote at $128 for 6pcs IK-22

anyone here heard or use brisk plugs?

Snowdog of J4C introduced it to me but i'm not quite confident of the Russian product.
Its got a unique ground electrode shaped like flower petals.

But since some reputable workshop dare to sell us this product, it must have passed their confidence test. Right?

 

[totoseow]

Re: ***spark Plug***

i have no idea.....700 bucks for 10 plugs is crazy price. i was tempted but i stuck to OEM.

 

[Jason8822]

Re: ***spark Plug***

From what I have experienced so far, OEM is by far the most reliable ones. DENSO ones are not designed for our rides because there are issues with gapping which causes the misfiring. Also, the OEMs to me, have a better reliability rate than after market ones. Thats just my personal experience.

Omar,

I tot the gap are predetermined with each model of plug with specific heat range?
Have been checking out aftermarket plug for quite some time but totally missed the gap issue.
What plug have you used in your car other than oem?
Because its my first set since taking delivery of my car, i have no experience with Denso on BMW.
My confidence with Denso comes from the improvement and gains i had from fitting them on toyota and lexus in my family only.

Jason

 

[Jason8822]

Re: ***spark Plug***

i have no idea.....700 bucks for 10 plugs is crazy price. i was tempted but i stuck to OEM.

toto...!!!!

you mean $700 for 10 pcs of brisk ???
then i die die will not let them change my plug liao.
btw, maybe M5 use plug with some special characteristics la.

jason

 

[Jason8822]

Re: ***spark Plug***

toto,

you referring to 10pcs for your lambo or which car?

jason

 

[totoseow]

Re: ***spark Plug***

ya lambo....my carchia no need plugs one.

 

[satinGHOST|r!der]

Re: ***spark Plug***

As far as i know at that time, Denso plugs require manual gapping of 0.5 or something like that for the E46. Which is why I went for the Volk plugs for the e46 which was nothing short of fantastic. It performed and took alot of beating. Zilch problem. Paid kinda high for the Spec 2's but they were well worth the price IMHO. For newer cars, I suggest keeping it stock untill at a later time where it is safer to do. As engines become more technically complex, it takes similarly a longer time for a product to stand the test of time. Just my 2cents.

Cheers!

Omar,

I tot the gap are predetermined with each model of plug with specific heat range?
Have been checking out aftermarket plug for quite some time but totally missed the gap issue.
What plug have you used in your car other than oem?
Because its my first set since taking delivery of my car, i have no experience with Denso on BMW.
My confidence with Denso comes from the improvement and gains i had from fitting them on toyota and lexus in my family only.

Jason