bleeding the system with air lock

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clik
Posts: 664
Joined: Mon Sep 29, 2014 5:05 am
Location: Scotland + CYPRUS

bleeding the system with air lock

Post by clik » Sun Aug 16, 2015 5:06 pm

Do not remove the cap till the engine has cooled down a bit and the pressure has dropped or you will get burned.
Instructions from hand book below
.


- Remove the radiator cap (9).
- Loosen the coolant bleed screw (10) on the water pump cover and at the
Same time continue to pour liquid in the radiator until it comes out of the hole
Of the bleed valve, then tighten again the bleed valve (10).
- Top up with coolant until the maximum level of the radiator (cap upper border).
- Refit the radiator cap (9).
- Start the engine and leave it on until the radiator is warm, then turn off the
Engine and leave it to cool down for around 2-3 minutes.
- Turn the radiator cap (9) until the 1st safety notch and let the possible pressure
Discharge, and then remove the cap.
- Top up with coolant until the maximum level of the radiator (cap upper border).
- Restart the engine and repeat the procedures until the level of the radiator
Liquid reaches the maximum level.
- Refit the radiator cap (9).
- Remove the expansion tank) cap (11) and pour in liquid until the level is
Between the minimum and the maximum level.
- Refit the cap (11).

bleeding 1.jpg
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bleeding 2.jpg
bleeding 2.jpg (71.16 KiB) Viewed 4509 times

SharkFinn
Posts: 595
Joined: Fri Nov 07, 2014 10:18 pm
Location: Lahti, Finland

Re: bleeding the system with air lock

Post by SharkFinn » Mon Aug 17, 2015 7:48 am

Worked like a charm for me! :D

clik
Posts: 664
Joined: Mon Sep 29, 2014 5:05 am
Location: Scotland + CYPRUS

Re: bleeding the system with air lock

Post by clik » Mon Aug 17, 2015 10:12 am

Morning shark Finn
i only uploaded this so it can be put in to the how to section for others
you and me will be good at this by now :lol:

Had my bike out the other day at night very hot and humid after about 10 minutes i found it started to sound different and cut out as soon as you
came to lights or puled in the clutch.
what i found was there was no warning light on but i new it was very hot once again there was air in the system its becoming a two week bleed job
I'm wondering if the radiator cap could also be a problem i need to look in to this as i don't know to much about caps .
it seems to open to allow water back to the header bottle for expansion but dose not allow it to return to the radiator
I'm getting pissed of with it i think the hot temperatures in Cyprus is making it worse i cant understand why bmw never solved this problem with this engine
as it as common as chips with this engine Mondays rant over have a good day :lol:

SharkFinn
Posts: 595
Joined: Fri Nov 07, 2014 10:18 pm
Location: Lahti, Finland

Re: bleeding the system with air lock

Post by SharkFinn » Mon Aug 17, 2015 1:08 pm

:P

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