Which engine coolant to use
- Thread starter Mark R
- Start date
Don't use anything other than genuine BMW due to the alloy engine. Capacity should be on TIS
BMW Coolant is G48 Glycol based. Any other G48 is fine to use, I personally always used Comma G48 in BMW systems.
Even the EuroCarParts TripleQ Blue is also to the same spec, so that's perfectly fine to use. Don't believe the scaremongering that only BMW coolant is okay, do you think they make their own coolant? Plenty of cars these days have alloy blocks or heads.
Even the EuroCarParts TripleQ Blue is also to the same spec, so that's perfectly fine to use. Don't believe the scaremongering that only BMW coolant is okay, do you think they make their own coolant? Plenty of cars these days have alloy blocks or heads.
patriot66 said:5 litres of Comma G48 is £18.89 inc postage on Ebayhttps://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.co.uk%2Fulk%2Fitm%2F292029308856
Bear in mind that's ready mixed, so you'll need 2. Concentrate is around £24ish and only one is needed.
mjennings23 said:patriot66 said:5 litres of Comma G48 is £18.89 inc postage on Ebay
Bear in mind that's ready mixed, so you'll need 2. Concentrate is around £24ish and only one is needed.
Plus de-ionised water and then you've got to mix it correctly etc. CBA ! For a few extra quid just buy ready mixed. Easy !
patriot66 said:mjennings23 said:patriot66 said:5 litres of Comma G48 is £18.89 inc postage on Ebay
Bear in mind that's ready mixed, so you'll need 2. Concentrate is around £24ish and only one is needed.
Plus de-ionised water and then you've got to mix it correctly etc. CBA ! For a few extra quid just buy ready mixed. Easy !
Am I going to cause controversy here and say tap water is fine? Because tap water really is fine for the vast majority of the country, only in areas with particularly hard chalky water is it not advised.
Plus water is an easier way to check for leaks if changing any parts, its a lot cheaper than coolant! All I did with mine was fill up with water, remove bleed screw and pour in 4l of coolant (8l capacity). That way you both bleed the system with the water pressure on the reservoir, and get the right balance.
Plus, in the UK, a higher water:coolant ratio is no bad thing. Believe Comma is -18 celsius if mixed 67:33 and -38 if 50:50. Bear in mind coolant is purely there as an anti-freeze and anti-corrosion material, water is a much more effective thermal conductor.
I used G11 BMW GS9400 N600 69 0 premixed from mpm lubricants.
w1ndsurfnut
Member
Thanks for posting this OP as I am just about to replace my radiator and was going to ask the same question. Its always a bit of a faff dealing with French BMW garage so would rather order my own coolant..
foddysavva
Member
Very similar question as above. Recently purchased a 53 plate 3.0 z4 and read confusing stuff about what coolant to use! It's going in for a service around December and want to make sure in the meantime I'll be topping the right stuff up if I need to. I'm sure I read somewhere (or imagined it?) that there are different colour coolants?
Thanks in advance
Thanks in advance
foddysavva
Member
Mr Tidy said:
Aha, thank you very much
foddysavva
Member
I honestly never knew different colours existed!
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