Coolant vent process NOT actuating

[martialartsblac]

My wife’s 2007 525i blew a hose and I replaced,
Refilled.
Now it’s overheating climbs to 240 plus

I can not get the coolant vent procedure to actuate

Is there a manual way to trigger it?

Is there a maintenance mode for the car?

Only code showing is a camshaft sensor
I know the pump is working and I can see the thermostat open.

[jclausen]

Yea there is a way something about pressing the gas pedal to the floor, google it how do you know the thermostat is opening

[martialartsblac]

Right. It’s not actuating when I try that process.

[Benny Beemer]

Check that the ignition is fully ON (not just accessory mode) when you are doing the process. I think you have to push the start button twice without the key in the ignition to get there.

[Benny Beemer]

BTW, a fellow member reminded me on another thread that you can activate the procedure using ISTA or INPA if you have them.

[martialartsblac]

BTW, a fellow member reminded me on another thread that you can activate the procedure using ISTA or INPA if you have them.

I don’t but I suppose I need it.

I’ve replaced the pump, thermostat and electric fan
Checked all fused
And verified there’s power on the harness.
Still with the
E84 code.
Fml.

I’m lost.
I dont know what to do next

[martialartsblac]

So I found a fuse blowen.
The bleed process is working now
But the exact same symptoms
��������������

I want to sell the car at this point

[Benny Beemer]

Maybe bleed a couple more times. I’ve found if there’s been a big leak then there can be big air bubbles that take several bleeds to fix.

[martialartsblac]

Maybe bleed a couple more times. I’ve found if there’s been a big leak then there can be big air bubbles that take several bleeds to fix.

It’s heating up to 260° within 10 minutes. It’s almost like your thermostat is not opening.

[jclausen]

At this point tow it to a shop and have it looked at then sell the car

[martialartsblac]

I suspect it’s a bad pump.
I paid 120$ for it.
I ran idpa and the pump tests @ 0%
New orelies $ 450
Goes in tomorrow
I’ll report back.

New pump fixed it !

Lesson learned
Don’t buy cheap electric water pumps.