what is make different between 325i and 318i spring?

[markus_74]

hello,

need info what are different between 318i and 325i front and rear spring? what is the effect it i use 318i spring on 325i engine?

more stiff and rigid? or ..

thank you
markus

[kipsy]

Yes the 325 spring is a 'stronger' spring. Designed for different weights. I used a 318 spring on a 320 recently and the front end was too low and easily bottomed onto the bump stops. The other way around would lift up front end and make the ride a little firmer. (325-318)

[kipsy]

Rear I think is the same

[markus_74]

thank you kipsy and if i use 325i touring on limousine does it will be more firmer? because i think touring is more heavy than limousine

[kipsy]

I think it would be but I've never tried to be honest.

[markus_74]

i just check etk/real oem that many of oem spring there including the one like mine that is euro version of m40 318i with air conditioning, and i surprised that the spring also used in 320, 325 so this is made me confused.

i think i will change my spring with the hardest that oem have but it seem mine is hardest

[sweep]

If you use 318i front springs on a car with a 325i engine in it will sit to low and bottom out buy either 320i front springs or 325i ones markus

[markus_74]

how to know it is 325i or 318i spring?

[sweep]

is there any paint markings on them?

[markus_74]

It is all black no paint marking on it. So it is? And what paint markind for 325i air cond sedan?