M20B25 Cooling systems.

[Nay]

Right, being an E30 i'm almost sure they are interchangable.

I have a facelift car with the early 325i motor and early cooling system.

If I have a facelift design cooling system, I take it its just a case of "plug'n'play" swap? Or are there any distinct differences I need to be aware about?

Cheers,
Nay.

[e21Jason]

Early and late different pump and rad, not sure of the change over date.

Jason

[Nay]

Early and late different pump and rad, not sure of the change over date.

Jason

Cheers. Jason, you seem to be the one helping out a lot!

I know the "clear" differences between the two, so I know what set ups i have. But I knew the later rad was different, as was most of the set up.

The water-pump is new to me so I'll need a new water pump. Is the 320i waterpump the same as a 325i? If so I have a relatively new on the 320i where I'll be getting most of my facelift cooling from (bar the rad) and using that as my basis.

I was more woried about diffent hose fittings (number of hoses to), and generally parts that might only apply to one but not the other.

[Barx325i]

They're the same pump

[e21Jason]

the early late have different outlets, but you can use any pump on any m20 as long as you have the rest of the bits to go with it.

I much prefer the face lift rad, so i put the face lift cooling onto my 320 e21 a few years when the orginal rad went.

Jason

[Nay]

So I can use the old pump as well? As that is basically new.

[daimlerman]

I discovered this when I built the 2.7...
I have a perfectly good 525e waterpump on the bits shelf!
I used the original 320 waterpump in the end,as said,it's all of one system or all of the other,much like the engine management.