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      06-07-2015, 06:53 PM   #23
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Quote:
Originally Posted by E90Fleet View Post
2013 USA M5 manual
Thank you. I hope everyone will admit those of us referring to the 2013 manual are working with a handicap regarding the cooling system. The MANUAL, not our brain power.
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      06-07-2015, 06:55 PM   #24
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Quote:
Originally Posted by E90Fleet View Post
2013 USA M5 manual
Yup.... 2013 M6 manual is the same. No indication or explanation about the other one (red colored in OP or #7 )... and also the cap has no label like the 2015 model (what Bonz posted)
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      06-07-2015, 07:08 PM   #25
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ok to confuse matters even worse..

is the rad the only low coolant sensor??
or does the intercooler tank have one also??
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      06-07-2015, 07:09 PM   #26
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Quote:
Originally Posted by Used2be View Post
Thank you. I hope everyone will admit those of us referring to the 2013 manual are working with a handicap regarding the cooling system. The MANUAL, not our brain power.
I never meant to insult your brainpower.

You can see BMW added the yellow warning at some point as my 2015 has it on the engine coolant cap. So through all this, we identified another series production change.

In the auto industry scores, if not hundreds of engineering changes occur every year on a given platform at the OE and supplier level. Some are to correct mistakes, eliminate bandaids, improve design and so on. Most typically are to reduce cost.

Last edited by Bönz; 06-08-2015 at 07:00 AM..
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      06-07-2015, 07:29 PM   #27
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Quote:
Originally Posted by Bönz View Post

You can see BMW added the yellow warning at some point as my 2015 has it on the engine coolant cap. So through all this, we identified another change series production change.

Yes, from July 2013 production BMW introduces new warnings on coolant caps due to new upcoming European regulations




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      06-07-2015, 07:31 PM   #28
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Quote:
Originally Posted by hori View Post
is the rad the only low coolant sensor??
or does the intercooler tank have one also??
I'll defer to E90 for the proper answer, but I don't see or feel any electrical connections on the DME reservoir, so I think not. If that fluid level got low, perhaps some other engine warning light would appear though, to warrant checking the DME reservoir?
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      06-07-2015, 07:44 PM   #29
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Quote:
Originally Posted by Used2be View Post
I'll defer to E90 for the proper answer, but I don't see or feel any electrical connections on the DME reservoir, so I think not. If that fluid level got low, perhaps some other engine warning light would appear though, to warrant checking the DME reservoir?
Cant see any sensor listed, but the pumps all have run dry detection and protection and the intake and DME temperatures are monitored, so a warning will be given to go see a dealer.

So I believe the only coolant low message the driver will ever get is the engine coolant.
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      06-08-2015, 09:03 AM   #30
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take it to the main dealer and let them sort it out and fill the correct reservoir up for you...
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      06-08-2015, 02:19 PM   #31
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Quote:
Originally Posted by Bönz View Post
I never meant to insult your brainpower.

You can see BMW added the yellow warning at some point as my 2015 has it on the engine coolant cap. So through all this, we identified another series production change.

In the auto industry scores, if not hundreds of engineering changes occur every year on a given platform at the OE and supplier level. Some are to correct mistakes, eliminate bandaids, improve design and so on. Most typically are to reduce cost.
I stand corrected my 2015 car handbook must be the earlier one as it doesn't show the 7 points and after checking the car you were right and I was wrong the coolant for the engine is on the right.

I will speak to my dealer tomorrow and ask for a later handbook!
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      06-09-2015, 07:14 PM   #32
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Well Im glad this debate went on as long as it did, now I know I wasnt wrong for feeling unclear as to which one was what. I have a 2013 and the manual does not show anything for the (RED) circled cap. I just happened to think from experience of working with BMW's that it was a coolant cap and knowing that it wasnt any one of the other fluids the car took.
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      06-09-2015, 08:20 PM   #33
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Quote:
Originally Posted by Manny G View Post
I just happened to think from experience of working with BMW's that it was a coolant cap and knowing that it wasnt any one of the other fluids the car took.
I have a fair amount of experience with cars over the years, and to be wrong on such a basic element of auto servicing was embarrassing. But the manual certainly led me in the wrong direction. The M5 has been so reliable for the last two and a half years, I haven't had to think of the water level, in any circuit. The only other new BMW car I've purchased was a 1969 model 2002....things have changed a bit since then!
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      06-15-2015, 11:37 AM   #34
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So it turns out I had the notorious coolant leak near the turbo coolant lines. I was due for service just after I had these coolant messages coming up, when I took the car in for service, they found a coolant leak and replaced noted the following:

Quote:
TURBOCHARGER COOLANT LINES WTY. VERIFIED CUSTOMER LOW COOLANT WARNING FOUND TURBOCHARGER COOLANT LINES LEAKING. REMOVED AND REPLACED TURBO CHARGER COOLANT LINES. NOTE TURBOCHARGER COOLANT LINE FITTING SEPARATED WHILE REMOVING HOSE FROM PUMP. REMOVED AND REPLACED TURBOCHARGER COOLANT PUMP. REFILLED VEHICLE COOLING SYSTEM TEST DRIVE FOUND NO FURTHER LEAKS.
R&I/REPLACING SUPPLY PIPE (FEED LINE TURBO AND AUX PUMP)
REPLACING RETURN LINE
4 x 11-53-7-853-849 HEAT PROTECTION
1 x 11-53-7-844-268 FEED PIPE
1 x 11-53-7-844-269 RETURN PIPE
4 x 32-41-1-131-346 HOSE CLAMP
1 x 11-51-7-629-916 AUXILIARY WATER PUMP
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      06-16-2015, 09:15 AM   #35
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Glad you are fixed up
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      06-18-2015, 12:17 PM   #36
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Quote:
Originally Posted by Manny G View Post
So it turns out I had the notorious coolant leak near the turbo coolant lines. I was due for service just after I had these coolant messages coming up, when I took the car in for service, they found a coolant leak and replaced noted the following:
When I first read your initial post I thought that's where this was heading.

Glad you're fixed up.
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      07-21-2016, 10:57 AM   #37
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I want to be clear about this. Is the coolant reservoir for the intercooler on the drivers side?
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      07-22-2016, 06:56 AM   #38
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They are combinded circuits with one reservoir e.g both intercoolers and both DME's
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      07-22-2016, 07:18 AM   #39
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Quote:
Originally Posted by ur20v View Post
They are combinded circuits with one reservoir e.g both intercoolers and both DME's
Not sure what to believe. I stopped by the dealer yesterday and they said the one on the drivers side is for the engine and the one on the passengers side is for the intercoolers.
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      07-22-2016, 10:58 AM   #40
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Quote:
Originally Posted by PREDATOR 007 View Post
Not sure what to believe. I stopped by the dealer yesterday and they said the one on the drivers side is for the engine and the one on the passengers side is for the intercoolers.
Just look at E90s post with the hose diagram.
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      07-25-2016, 07:19 AM   #41
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Quote:
Originally Posted by PREDATOR 007 View Post
I want to be clear about this. Is the coolant reservoir for the intercooler on the drivers side?
007, I thought you saying the reservoir was 'just' for the drivers side- I misunderstood your post and thought you were talking about a split system for the intercoolers as there are two of them.

Driver side reservoir is for both DME's and both intercoolers.
Passenger side reservoir is for the engine coolant circuit (Radiator, heater, engine block etc).
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      07-25-2016, 07:42 AM   #42
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Quote:
Originally Posted by ur20v View Post
007, I thought you saying the reservoir was 'just' for the drivers side- I misunderstood your post and thought you were talking about a split system for the intercoolers as there are two of them.

Driver side reservoir is for both DME's and both intercoolers.
Passenger side reservoir is for the engine coolant circuit (Radiator, heater, engine block etc).
BMW and Terry confirmed that the reservoir on the passenger side is the one that I need to fill. US model, my steering wheel is on the left.
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      07-25-2016, 10:20 PM   #43
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Instead of talking passenger or driver side which is problematic depending on where you live we should say the small square box reservoir to the left of the engine bay as you face it which has an easly visable max and min indicator inside- this feeds the DME's and intercoolers. The other cap is located to the right of the engine bay as you look at it, its hard to see any thing down in its depths (its basicly a tube) is for the engine coling system.
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      07-29-2016, 11:36 AM   #44
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As someone who was also totally confused/screwed over with this particular issue, I thought I'd add a little extra helpful information..

1. Either system can throw a 'coolant low' warning on the dash. If you get a 'coolant low' warning then check the black coolant tank on the left side (as you look into the engine bay). If it's low, top it up.

However, if it's fully topped up then the 'coolant low' warning is referring to the other tank, the one where the filler is on the top right (as you look into the engine bay). The one without the visible expansion tank.

2. "Aha!" I hear you shout. "But if I'm topping up the one without the expansion tank, how the devil do I know if I've topped it up to the right level? There's no indicator!"

The answer is... top it up until it's a few inches below the filler neck. But not to the top.

Hope this is helpful. Bloody stupid system. Bloody stupid 2013 user manual. Bloody ignorant BMW staff.
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