N57 Coolant Bleed Procedure

[Mo5es786]

I've searched high and low but can't seem to find a procedure to bleed the N57. As I understand, my car has a belt driven water pump (F15 X5 M50d)

Could someone please share the correct procedure?

[CatalinP]

You need to vacuum the cooling system first, then fill it up. For procedure, newtis or ista.

[Mo5es786]

Originally Posted by CatalinP

You need to vacuum the cooling system first, then fill it up. For procedure, newtis or ista.

Thanks. Dealer changed my HG so they probably Vacuum filled. I don't have access to ISTA as yet and Newtis was shut down

[CatalinP]

Newtis is still working.

https://www.newtis.info/tisv2/a/en/

[Clifton]

Originally Posted by CatalinP

Newtis is still working.

https://www.newtis.info/tisv2/a/en/

The link provided shows 'Site Closed' on my end. Been that way for a while now.

[CatalinP]

Ok...

[Mo5es786]

For the benefit of others (Not sure why it says brake bleeding)

N57 COOLANT BLEED/VENT PROCEDURE


17 00 039 Bleeding cooling system and checking for watertightness (N57 D30 S 1)

Necessary preliminary work:
Fill cooling system with vacuum filling unit

Venting cooling system:

Brake bleeding procedure is maintained automatically for a set period of time. During this time, marginal conditions are continuously checked and the brake bleeding procedure is automatically terminated in the event that these are violated.

The following preconditions are continuously monitored by the DDE and must be adhered to in order to maintain the brake bleeding procedure:

Automatic transmission in position "N" or "P".
Manual gearbox clutch not operated.
Engine at idle (presses on accelerator are possible).
driving speed is less than 3 km/h.
Coolant temperature on engine start <50°C.
Starting the brake bleeding procedure:

Switch on ignition.
Set heater to maximum temperature and turn blower down to lowest speed.
FES (driving experience switch) must not be in ECO PRO!
Press accelerator pedal for 10 seconds to floor.
Start the engine within 30 seconds.

If the engine is not started within 30 seconds, the function is reset.

If the brake bleeding procedure needs to be performed again (e.g. in the event of a leaking cooling system), allow DME to fall completely (leave ignition key removed for approx. 3 mins) then repeat from point 1.
Once the function has been started, a counter runs (10 minutes) whilst the aforementioned marginal conditions are satisfied. Once this period has expired or in the event that the aforementioned marginal conditions are violated, the function switches automatically to normal operation.

Then adjust fluid level in the coolant expansion tank to maximum.

[m4forum]

I had just bleed coolant system few weeks ago ... very straight forward .. use vacuum so can fill most of the system. drive around until temp achieve 210 on dashboard (reality is 200F) ... top it off and should be good to go. Took me 2 top offs for coolant to stabilize.
Vacuum -0.7 to -0.95 bar.
additionally before bleeding run a pressure test which can help identify leakages 1.4bar max pressure wait 2 minutes ... no leakage allowed.

[crystalworks]

Originally Posted by Clifton

The link provided shows 'Site Closed' on my end. Been that way for a while now.

Shhhh... don't tell anyone, but if you have a login. It still works.