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      02-01-2020, 03:27 PM   #1
uddinsa
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Coolant level for M6 grand coupe 2016

Hi guys need help on topping up coolant level

Low amber coolant top up alert came on dashboard

How do we go about topping up?

I noticed there are 2 caps when ur facing the car from the front hood open one on the top right and other on the left.

Left one i can see it topped to the max as i can see its on the mark.

The right one i cant see any mark at all, just a tunnel how high is the water level suppose to be ?? And why are their two? Which one does what.

I filled the right one with approx 2litres still nothing happening still showing low coolant.

Anyone has any ideas please
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      02-01-2020, 04:59 PM   #2
Kkgy79
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Quote:
Originally Posted by uddinsa View Post
Hi guys need help on topping up coolant level

Low amber coolant top up alert came on dashboard

How do we go about topping up?

I noticed there are 2 caps when ur facing the car from the front hood open one on the top right and other on the left.

Left one i can see it topped to the max as i can see its on the mark.

The right one i cant see any mark at all, just a tunnel how high is the water level suppose to be ?? And why are their two? Which one does what.

I filled the right one with approx 2litres still nothing happening still showing low coolant.

Anyone has any ideas please
All the way up to 1inch down of the cap.
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      02-01-2020, 06:08 PM   #3
JBF650
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Quote:
Originally Posted by uddinsa View Post
Hi guys need help on topping up coolant level

Low amber coolant top up alert came on dashboard

How do we go about topping up?

I noticed there are 2 caps when ur facing the car from the front hood open one on the top right and other on the left.

Left one i can see it topped to the max as i can see its on the mark.

The right one i cant see any mark at all, just a tunnel how high is the water level suppose to be ?? And why are their two? Which one does what.

I filled the right one with approx 2litres still nothing happening still showing low coolant.

Anyone has any ideas please
Ahhh wasn’t it you that had a brand new engine fitted? Take the car back to the dealership ASAP and have them show you as well as top up. This doesn’t bode well .....
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      02-01-2020, 06:10 PM   #4
uddinsa
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Quote:
Originally Posted by JBF650 View Post
Quote:
Originally Posted by uddinsa View Post
Hi guys need help on topping up coolant level

Low amber coolant top up alert came on dashboard

How do we go about topping up?

I noticed there are 2 caps when ur facing the car from the front hood open one on the top right and other on the left.

Left one i can see it topped to the max as i can see its on the mark.

The right one i cant see any mark at all, just a tunnel how high is the water level suppose to be ?? And why are their two? Which one does what.

I filled the right one with approx 2litres still nothing happening still showing low coolant.

Anyone has any ideas please
Ahhh wasn’t it you that had a brand new engine fitted? Take the car back to the dealership ASAP and have them show you as well as top up. This doesn’t bode well .....
Yea called them they said to take it back on monday,
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      02-02-2020, 09:31 PM   #5
Qsilver7
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Not sure how similar the engine in the M6 is to the 2013-2019 N63TU in the 650....but the N63TU has two separate cooling system. One is for the engine cooling...and the other is for the charge air cooling (to cool the turbos) and the two engine DME.

On the n63TU...the charge air cooling system reservoir is up front and center...and when you screw the cap off you can see the MAX fill line. The reservoir for the engine coolant is in the left front fender and the fill pipe is at the rear left of the engine bay (on the rear right if you're standing in front of the car looking toward the cabin.

See the info below as to how to check the fill pipe for the N63TU...if the engine in the M6 is similar...the fill pipe is probably similar, too:
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      02-03-2020, 09:55 AM   #6
Qsilver7
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Did a quick search on the TIS website...and the S63 engine coolant is checked the same way as the N63TU...you measure down the fill pipe at the back of the engine bay:
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Last edited by Qsilver7; 02-03-2020 at 10:06 AM..
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