Oh crap! I didn't use BMW OEM antifreeze!

[z2g]

I didn't realize that BMW recommends nitrate/phosphate-free coolant. Last night, I was just checking out my 2010 X5 for a road trip this weekend (checked the tires, water, etc.) and saw that the coolant level was low. I had a jug of coolant in the garage and just filled it up with 50/50 coolant and water (filtered via reverse osmosis). I didn't put much coolant in though because the reservoir wasn't very low.

It's not a big deal, right? Or, am I just being paranoid because it wasn't one of the listed non-OEM coolants allowed by BMW, but one I bought from Autozone a few years ago.

[Comedian]

It can, in fact, be quite a big deal.

Was it the "Mixes With Anything" type, or just regular old anti-freeze.

The "mixes with anything" stuff is made up of:
http://www.mightyautoparts.com/pdf/msds/vs7/af-888.pdf

Ethylene Glycol
Diethylene Glycol
2-Ethyl Hexanoic Acid, Sodium Salt (Corrosion inhibitor)
Neodecanoic Acid, Sodium Salt (Corrosion inhibitor)

It is both Nitrate Free & Phosphate Free, and claims to be OK with ANY other coolant chemistry.

Other coolants use additive packages that may not be compatible with the BMW OEM coolant.

Having read up on this when I was a VW owner, I know that there are certain combinations of VW OEM coolant (G12, G12+) with other coolants that could have catastrophic consequences.

[ChuckG]

Saturn recalled cars that had been built with the wrong antifreeze and the owners were given brand new cars.

Chuck

[z2g]

It was just regular basic antifreeze. I just put in a tiny amount....maybe half a cup or a quarter cup. The coolant reservoir was on the low indicator and I filled it up half way. Then, I put filtered water up to the Max line. It should be okay, right?

[Jeg Norge]

should be ok... one day i was super tired had a brain fart and instead of filling the windshield fluid in the right spot i dumped a little in the coolant container.

that was 38,000 kms ago. but to put your mind at ease just go get a coolant flush but just dont tell them why. just say oh i treat my car like no other.

[z2g]

Originally Posted by Jeg Norge

should be ok... one day i was super tired had a brain fart and instead of filling the windshield fluid in the right spot i dumped a little in the coolant container.

that was 38,000 kms ago. but to put your mind at ease just go get a coolant flush but just dont tell them why. just say oh i treat my car like no other.

Yeah, I hope it's okay. Considering that it's a $60k car, I would hope that 4-8 ounces of the wrong coolant isn't going to cause serious damage. That would be kind of sad!

[ard]

Originally Posted by z2g

It was just regular basic antifreeze. I just put in a tiny amount....maybe half a cup or a quarter cup. The coolant reservoir was on the low indicator and I filled it up half way. Then, I put filtered water up to the Max line. It should be okay, right?

If you have not run the car, simply drain the coolant reservoir...otherwise drain the whole system.

I know you are trying to find people to agree with you and provide assurance, but unless we know the coolant you added is compatible, there is a chance that the chemistries will lead to issues.

[z2g]

Originally Posted by ard

If you have not run the car, simply drain the coolant reservoir...otherwise drain the whole system.

I know you are trying to find people to agree with you and provide assurance, but unless we know the coolant you added is compatible, there is a chance that the chemistries will lead to issues.

Is there an easy way to drain the reservoir?

[Jeg Norge]

ahhh, this thread got me all paranoid. i think i will take the car in for a coolant change. i have to take it in for the warranty brake fluid change soon anyways.

[tonycajjo]

Originally Posted by z2g

Is there an easy way to drain the reservoir?

remove one of the hoses or go get a turkey baster.

the wrong coolant can damage the coating on the inside of the plumbing. as far as the comment its a 60K$ vehicle i hope it would hurt or whatever... thats just silly.