Hey everyone, I just added split cooling to my e55 and all is great, iat’s are down and temps drop real quick, but I do notice that about every 80-100 miles I have to add all the water back in Bc the tank goes dry, is this normal, the coolant level is fine it’s just my bmw reservoir tank.
thank you

 

You have a leak somewhere.

 

That’s what I’m thinking, until I try a chance to fix it do you think it’s okay to drive it and just tip up when need be Bc it is still helping

 

Depends on how much it's leaking. It should be easy to find. I'd try and fix it as small leaks usually become big leaks at un-opportune times.

 

True, gonna try to locate it. It isn’t from the bottom and I can’t see it from anywhere inside as wel, May have to remove the splash shield Bc there also isn’t anything on my floors