[mcapple27]

Hi,

I drained the coolant from my 2011 535i. The coolant is dark green instead of blue. Is this normal? I bought the car used. not sure if this is the original coolant. I owned the car for 4 yrs, so the coolant is at least 4 yr old.

Did BMW use this green coolant back in the days?

[n3985]

No, BMW blue coolant has been consistent for decades.

[Qsilver7]

Originally Posted by mcapple27

Hi,

I drained the coolant from my 2011 535i. The coolant is dark green instead of blue. Is this normal? I bought the car used. not sure if this is the original coolant. I owned the car for 4 yrs, so the coolant is at least 4 yr old.

Did BMW use this green coolant back in the days?

BMW does now use coolants that have a different color other than (G48) blue. See the info below.

But I would think your 2011 f10 should still be using the G48 "blue stuff"...but perhaps a previous owner changed the fluid and since the G05 5 series uses the HT12 green coolant...it was assumed that the f10 5 series uses it, too.