Pottie

Hello guys....I m doing a favor for my brother...
He ll be replacing those plugs pretty soon and I wonder what brand of plugs that is good for C240, which type of bosch that work good in C240
Also beside changin the plugs what other service do we need to perform and how many plugs he would need to change....
In my experience ML430 using 16EA since it takes 2EA per valve....
so I was wonder if C240 using 12EA, is anyone can help us to varify
Thank s in advance......

advans

I'm looking into replacing spark plugs this coming summer as well.

Im set for NGK-I-VI, and my backup ones are denso iridium ik16

yeuchau

i thought all 6 cyclinder use 6 spark plugs??
and since 240 is V6, so 6 spark plugs
correct me if i am wrong

rlee02135

they use 2 spark plugs per cylinder

Cappa26

2 per cylinder. So 12. Pricy

advans

yeap. my gf's dad recently changed iridium sparks on their accord, they only needed 4, at $18 each, its $72.

our V6 with 12 plugs, at $20 each= $216.

yeuchau

12, that's a lot

JKETCH

Yes and whats worse is when you have the car apart and realize there are two per cylinder!

alexhui

Is there any reasons or recommendations to change spark plugs?

I wanted to replace my spark plugs when I changed my ignition coil.
I asked my mechanic to change them at 72,500 miles, and he asked me to wait until 100,000 miles to change all 12 of them.

He said that these Platium spark plugs are good for 100,000 miles.

Thanks.

JKETCH

I did mine sooner. Probably around 60K. Eventhough they say they are good until 100K I like to be safe. I was changing out the ignition harness anyways and figured I might as well get the plugs changed out before hand. I think it is personal preference and I definetly had more time on the plugs after taking them out but I wouldn't say much, not another 40K miles anyways.

C230 Sport Coup

20 each? How do you figure.
I pay 7 each for NGK iridium from Winchester Auto.

Pottie

Thank s for the respond guys....
Im my experience with ML430 Benz using 2plugs/clynder...so I figure C240 also using same application...
So I guess NGK are good as well since last time I m using Bosch
Thanks for the input guys