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      08-19-2008, 09:27 PM   #1
DrGP
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What type/brand of coolant can I put in my 335i?

Have gotten the low coolant level icon twice. Don't really want to trek up to the dealership to get the BMW fluid. What alternative fluid is compatible?
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      08-19-2008, 09:31 PM   #2
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Quote:
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Have gotten the low coolant level icon twice. Don't really want to trek up to the dealership to get the BMW fluid. What alternative fluid is compatible?
I think you should do the trek. Don't think it is normal to lose coolant. may have a leak.
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      08-19-2008, 09:32 PM   #3
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I am not 100% but I am sure others will work but is your dealership that far away?
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      08-19-2008, 09:41 PM   #4
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There are a few aftermarket coolants that will work, but I dont think you will find any of them at the local walmart or autozone.

Please dont use regular coolant, most of it is highly corrosive and will wear out parts faster.

Since its the summer and you are not that low, I would just add distilled water. The BMW mix is 50% coolant and 50% distilled water anyway so if the mix is 45/55 coolant/water it wont make much of a difference.

Infact you could run on distilled water alone if you wanted if you were only in warmer weather.

So two options, run to the dealer, or run to the super market and add some distilled water.
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      08-19-2008, 09:48 PM   #5
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Read somewhere that Peak Coolant, the Blue colored one , is compatible with BMW coolant.
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      08-19-2008, 10:00 PM   #6
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I take that back..it's Zerex G-05 which is approved.
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      08-19-2008, 10:17 PM   #7
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Evans NPG+ Waterless Coolant is another one but not easy to find.

Again if you aren't horribly low I would just add some distilled water.
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      08-19-2008, 10:29 PM   #8
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Look!, Special on BMW coolant!

http://www.trademotion.com/partlocat...egoryID=104047
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      08-20-2008, 09:46 AM   #9
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its recommend that u use bmw cooland

i was having the same issue..i think there something wrong with cap, evaporates the coolant faster then usual

i only have 13k on my car, i poured about 1/2 gallon
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      08-20-2008, 11:11 AM   #10
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Its a warranty issue; take it to the dealer and they will add the coolant and, hopefully, find out why its low.
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      08-20-2008, 11:54 AM   #11
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Personally, I would add in distilled water + water wetter for now and visit the dealer to get the leak investigated thoroughly.

Don't take your chances with aftermarket coolant. The additives could be corrosive
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      08-20-2008, 11:54 AM   #12
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Anyone ever tried Redline watter wetter? Supposed to help the car run slightly cooler.
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      08-20-2008, 01:03 PM   #13
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Just use distilled water and take it in. It's a closed system and if you're losing coolant then there's a problem.
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      08-20-2008, 01:10 PM   #14
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I had the light too.
The container was empty!
Called the dealer and they said it was "normal" due to evaporation but asked to bring it in to check.
They recommended against anything other than BMW coolant.
Or just pour water.

I took it in and they top it off. Had no time to leave it so they just asked to keep an eye on it and bring it back if the light comes back on.
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      08-20-2008, 02:30 PM   #15
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Before you buy antifreeze, do your homework. Some of the advice given here is good; other advice is, well, not as accurate as possible. Fwiw, I like Zerex products and here is a link to their website showing which products we can use. As a side note, I have always added distilled water to antifreeze when changing out. If I really needed to get somewhere and my fluid level ws low, I would add water until I could change it out.

Here's the link:

http://www.valvoline.com/zerex/pdf/Z...d=1B5D1AEA1AFC
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      08-20-2008, 04:30 PM   #16
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Quote:
Originally Posted by windshear View Post
Anyone ever tried Redline watter wetter? Supposed to help the car run slightly cooler.
I have used Water wetter on my E46 with a 50/50 BMW coolant and distilled water mix. It does lower the temp slightly.
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      08-20-2008, 05:09 PM   #17
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Damn!!! This just happened to me!! 14300 miles and low coolant?! So distilled water then dealer???
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      09-22-2008, 11:41 AM   #18
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Just got this message this morning, but the next time I started the car (after driving ~20 miles) the message was no longer there. Weird.

I'm an hour from my dealer.. I don't want to go there just for coolant. I guess I'll check the reservoir and add water if it doesn't look too low...
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      09-22-2008, 12:34 PM   #19
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Quote:
Originally Posted by drwtsn32 View Post
Just got this message this morning, but the next time I started the car (after driving ~20 miles) the message was no longer there. Weird.

I'm an hour from my dealer.. I don't want to go there just for coolant. I guess I'll check the reservoir and add water if it doesn't look too low...
it goes on and off for a while.
Then it will stay on for good.
Water will do.
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      09-22-2008, 12:48 PM   #20
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Quote:
Originally Posted by drwtsn32 View Post
Just got this message this morning, but the next time I started the car (after driving ~20 miles) the message was no longer there. Weird.

I'm an hour from my dealer.. I don't want to go there just for coolant. I guess I'll check the reservoir and add water if it doesn't look too low...
It's probably because of the heat and the fluid expanding. You're right at the level where when the fluid is heated up, it expands enough that it doesn't trip the sensor. Also, when you shut the car off the coolant should flow into the expansion tank from the high pressure and heat, so if you check right after you shut off the car the level will look good. I say still have it looked at if you get another warning. Coolant / cooling systems are closed loops, and when it's low it means it has leaked out or been purposely removed.
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      07-23-2013, 06:13 PM   #21
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OEM BMW coolant is zerek G-48 and can only be bought at a BMW dealership as they have a contract with vavoline (makers of zerek g48). You cannot buy G-48 at any retail store, only G-05. The difference between G-48 and G-05 is that the G-48 has a higher pH, no nitrate, and other subtle differences. So the G-48 is more refined than the G-05. Some say the G-48 is better for the cooling system and engine due to less corrosion, some say that its total BS and it doesn't make a difference. It's all up to you as to what you want to do.
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      07-24-2013, 01:16 PM   #22
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Something this important just use OEM, premix it 50/50 with distilled water before pouring it in.

Honestly if you are just a little low, I would just add distilled water.

Find the OEM coolant online.
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