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BMW 5-Series (G30) Forum 2017+ BMW 5 Series (G30) General Discussions Coolant level low

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      01-28-2019, 06:29 AM   #67
clee1982
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Quote:
Originally Posted by Martin30x View Post
Ok guys, got low level coolant again.

After lifting up car and removing plastics. It seems the 2nd radiator leak in corners. (No damage).

After speaking to friendly garage in europe (bmw) cannot tell which one.

Ive been told the radiators are faulty (bad seals) has been superseed by 1711 7933876

If you are getting message low level coolant (take it to bmw or indy garage) ask to remove bottom cover (just under radiator) there are 2 plastics.

Check bottom corners.

If leak find. Take a picture and ask bmw to replace radiator.

**be aware**
When was your car built?
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      01-28-2019, 09:59 AM   #68
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Registered 29.3.2017 540i

Build date need to check. One of the first available on the market.

If you got this number on radiator

17118650745

It will leak eventually.


Very common problem.. with them. Poor seal on bottom
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      01-28-2019, 10:09 AM   #69
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Quote:
Originally Posted by Martin30x View Post
Registered 29.3.2017 540i

Build date need to check. One of the first available on the market.

If you got this number on radiator

17118650745

It will leak eventually.


Very common problem.. with them. Poor seal on bottom
Thanks great information, much appreciated.

Perhaps this thread should have its own forum sticky for future reference.
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      01-28-2019, 11:00 AM   #70
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Quote:
Originally Posted by 530iDriver View Post
Thanks great information, much appreciated.

Perhaps this thread should have its own forum sticky for future reference.
Agree, but more importantly anyone on the forums know how to escalate something like this to a recall so BMW does the leg-work for us since we're not on their payroll?? I have 4,500 mi on my G30 sedan and have had no issues yet, but now I'm informed and aware.
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      01-28-2019, 11:08 AM   #71
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I'm 2019 car hopefully not an issue...
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      01-28-2019, 11:25 AM   #72
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Quote:
Originally Posted by clee1982 View Post
I'm 2019 car hopefully not an issue...
there you go! way to look out for you and only you, LOL - just pull'n your leg. i hope for your sake as well.
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      01-28-2019, 01:36 PM   #73
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Quote:
Originally Posted by Martin30x View Post
Ok guys, got low level coolant again.

After lifting up car and removing plastics. It seems the 2nd radiator leak in corners. (No damage).

After speaking to friendly garage in europe (bmw) cannot tell which one.

Ive been told the radiators are faulty (bad seals) has been superseed by 1711 7933876

If you are getting message low level coolant (take it to bmw or indy garage) ask to remove bottom cover (just under radiator) there are 2 plastics.

Check bottom corners.

If leak find. Take a picture and ask bmw to replace radiator.

**be aware**
Where do you check for the number?
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      01-28-2019, 08:27 PM   #74
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Smile hi

[it's normal for BMW B58 &B48 At the G platform ,we just refill the coolant liquid .the resean is product line not filled the enough coolant .
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      01-29-2019, 11:48 AM   #75
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I took mine in this week for its first 10k mile service and inquired about the coolant loss after getting the message and refilling my car's two tanks. The dealer inspected, pressurized the system, and found no issues. I guess I will just keep an eye on it.

On the upside, I asked if there was an iDrive update to fix CarPlay compatibility issues and the update they installed seems to have made a difference.
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      01-29-2019, 12:41 PM   #76
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it's amazing they still can't do (or really won't do) update over the air in these times...
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      01-29-2019, 02:56 PM   #77
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Quote:
Originally Posted by clee1982 View Post
it's amazing they still can't do (or really won't do) update over the air in these times...
They do update the maps in the navigation system OTA.
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      02-01-2019, 01:14 PM   #78
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I had the problem including the nearly impossible to remove tank cap and signs of venting around the cap.. Dealer pressure tested the system and replaced the cap about 4,000 miles ago. Problem appears to be solved.
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      02-02-2019, 08:57 AM   #79
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I've had a bit of an idea about why all sorts of our engines are losing a bit of coolant over time. I was sorting out my engine bay today, giving it a bit of a clean and topping up screenwash and I noticed that the coolant reservoir is formed in two parts - a lower section, and then an upper section with the cap. At the join level I could see a very very small amount of residue, suggesting that liquid was perhaps escaping between the two sections. It was only a very small amount, and that would tally with the level only dropping just a bit over time... What do others think? Could this be a potential reason for coolant loss particularly in the B58 engine?
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      02-21-2019, 11:54 AM   #80
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I thought I would just update everyone as it happened to me again at 11,500 miles. I received the low coolant notification and had to put in a little bit of coolant in the main large tank. No signs of leaking anywhere but its got to be going somewhere...
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      03-10-2019, 03:37 PM   #81
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Anyone know what coolant I should add? My dealership is over an hour away, and I’d like to add my own if possible. Not seeing any mention of type in the manual.. but maybe that’s because it doesn’t matter what type? M550i xdrive I just picked up second-hand with 10k miles.
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      03-10-2019, 05:05 PM   #82
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Quote:
Originally Posted by HotSoss View Post
Anyone know what coolant I should add? My dealership is over an hour away, and I'd like to add my own if possible. Not seeing any mention of type in the manual.. but maybe that's because it doesn't matter what type? M550i xdrive I just picked up second-hand with 10k miles.
Always always use the manufacturer's coolant. Most coolants now have different additives that don't get along too well with another manufacturers coolant. You bought an expensive car. $20 for BMW coolant and $1 for distilled water is dirt cheap. (You have to mix 50:50). If the dealer is too far just buy it online for a few bucks of shipping. Mixing other manufacturers coolant or a generic brand runs the risk of causing a reaction and causing precipitates to come out of solution and clog your cooling system. Considering that the turbos are cooled by coolant and that the N63 already has a reputation of a very fragile cooling system makes it even more so.
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      03-10-2019, 05:45 PM   #83
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Quote:
Originally Posted by magbarn View Post
Always always use the manufacturer's coolant. Most coolants now have different additives that don't get along too well with another manufacturers coolant. You bought an expensive car. $20 for BMW coolant and $1 for distilled water is dirt cheap. (You have to mix 50:50). If the dealer is too far just buy it online for a few bucks of shipping. Mixing other manufacturers coolant or a generic brand runs the risk of causing a reaction and causing precipitates to come out of solution and clog your cooling system. Considering that the turbos are cooled by coolant and that the N63 already has a reputation of a very fragile cooling system makes it even more so.

Thank you for the quick reply! I have no issue buying the BMW brand stuff- It is a hassle to order it though when I just bough the car and I'm already getting engine lights 😒. I want to drive this thing and not wait for this stuff to ship LOL! A local Autozone has this Pentafrost Part Number: 8114117 Coolant that says it's manufactured to the same spec as OE. I am tempted to put a bit of this into the car until my order of a few gallons of the BMW stuff arrives... Is that a horrible idea?? Based on your previous reply, it seems that I should just be patient for the genuine stuff to get here

My vehicle is still under warranty, and I'm taking it into the dealer in a about 10 days to have two open recalls fixed (apparently the previous owner ignored them?). I would think a coolant leak should be fixed under warranty, am I correct?
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      03-10-2019, 06:10 PM   #84
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Quote:
Originally Posted by HotSoss View Post
Quote:
Originally Posted by magbarn View Post
Always always use the manufacturer's coolant. Most coolants now have different additives that don't get along too well with another manufacturers coolant. You bought an expensive car. $20 for BMW coolant and $1 for distilled water is dirt cheap. (You have to mix 50:50). If the dealer is too far just buy it online for a few bucks of shipping. Mixing other manufacturers coolant or a generic brand runs the risk of causing a reaction and causing precipitates to come out of solution and clog your cooling system. Considering that the turbos are cooled by coolant and that the N63 already has a reputation of a very fragile cooling system makes it even more so.

Thank you for the quick reply! I have no issue buying the BMW brand stuff- It is a hassle to order it though when I just bough the car and I'm already getting engine lights 😒. I want to drive this thing and not wait for this stuff to ship LOL! A local Autozone has this Pentafrost Part Number: 8114117 Coolant that says it's manufactured to the same spec as OE. I am tempted to put a bit of this into the car until my order of a few gallons of the BMW stuff arrives... Is that a horrible idea?? Based on your previous reply, it seems that I should just be patient for the genuine stuff to get here

My vehicle is still under warranty, and I'm taking it into the dealer in a about 10 days to have two open recalls fixed (apparently the previous owner ignored them?). I would think a coolant leak should be fixed under warranty, am I correct?
Have you looked to see how low the coolant really is? If it's just below the min line you should be ok. You can put just a tiny bit of distilled water to take it over the min line to get rid of the warning. That little amount shouldn't cause problems. Coolant leaks should be covered.
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      03-10-2019, 06:30 PM   #85
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Quote:
Originally Posted by magbarn View Post
Have you looked to see how low the coolant really is? If it's just below the min line you should be ok. You can put just a tiny bit of distilled water to take it over the min line to get rid of the warning. That little amount shouldn't cause problems. Coolant leaks should be covered.
There seem to be two coolant ports, if I am correct. One appears to be fine, but the other seems to be way below the correct level. The warning on the dash comes on, but then it goes away completely almost immediately.
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      03-10-2019, 06:34 PM   #86
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Quote:
Originally Posted by HotSoss View Post
Quote:
Originally Posted by magbarn View Post
Have you looked to see how low the coolant really is? If it's just below the min line you should be ok. You can put just a tiny bit of distilled water to take it over the min line to get rid of the warning. That little amount shouldn't cause problems. Coolant leaks should be covered.
There seem to be two coolant ports, if I am correct. One appears to be fine, but the other seems to be way below the correct level. The warning on the dash comes on, but then it goes away completely almost immediately.
You should be ok. If it goes away immediately then it's right at the limit as the expansion of the fluid from heat is taking it over the sensor. I'm sure your will be fine unless you decide to do a 2000 mile road trip prior to the dealer appointment
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      03-11-2019, 01:53 PM   #87
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Quote:
Originally Posted by HotSoss View Post
Anyone know what coolant I should add? My dealership is over an hour away, and I’d like to add my own if possible. Not seeing any mention of type in the manual.. but maybe that’s because it doesn’t matter what type? M550i xdrive I just picked up second-hand with 10k miles.
this is the same thing BMW uses. they sell these at autozone, pepboys, etc. pento frost with the blue cap. FYI, BMW doesnt make their own coolant. its just rebadged. you'll probably need to fill both reservoirs, i had to add about 500ml once my light turned on.

https://www.autozone.com/antifreeze-...43362_580158_0
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      03-12-2019, 09:23 AM   #88
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Keep a bottle of coolant handy. If the level is low the car will let you know as soon as you open the door while the engine is still cold.
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