Electric Water Pump Bleeding on BMW X1, X3, X5, 1, 3, 5, 7series - Coolant System Bleeding Procedure 

Awesome! That’s what I’m hoping to do!

No, just like in the video

@@motorcarnut thanks! Great video as always

@pignapoke6772 thank you!

Thanks for the comment. Yes that is correct about the coolant level. Yes put the battery charger on before you start because the procedure can last for over 10 minutes. Now I had some models that did shut off by themselves and some that didn’t. If you start the procedure it should last for 10 to 15 minutes and shut off automatically if not 15 minutes max should be sufficient and you can stop the procedure manually.

@@motorcarnut How do you stop the procedure manually?

Just shut the car off and disconnect the battery charger

@@motorcarnut Thanks for the quick reply. By the way, what type of battery charger is good for AGM battery? Thank you.

Just look online or at harbor freight for one that is compatible with AGM batteries. There not that expensive.

Glad it was helpful!

That’s a secondary bleeder but it’s not needed when you’re blending the system with the electric water pump.

When in operation? if its spilling out then yes.

Use the two in the front

When you accelerate does the heat get hot? If so it’s probably air trapped. Try breaking the seal on the hose near the heater corr to let some coolant come out.

When you completed the process make sure overflow tank cap is installed then start the vehicle.

Sorry to hear that. You should post your experience with gasket sealers on my video about them

Never use those sealers I have videos on that. Who knows what it did. Check fuses and wiring for those codes.

@@motorcarnut Yes... NEVER again... Now, I have a lot of headache. Changed the Thermostat, Clean out the Reservoir, need to change the Electric Coolant pump and flush the radiator again... to make sure all those blue googy out of the coolant system. The hard part is to locate the fuse or fuses :(.

Try disconnecting the battery for 5 minutes then reconnect, see if pump starts working

I ended up replacing the water pump, thermostat and of course flush it with 50% vinegar and 50% distilled water! Actually, I have to flushed again so the particles in the coolant get flushed out! I used total 10 gallons for flushing 3 times :(. Now, it is back to normal I hope 😄😃😀thanks God!

@mdang3662 great! Thanks for the update!

Make sure you hear the pump running , if it is add more coolant.

If you’re talking about overflow tank is full but shows low on coolant than it could be the sensor inside the overflow tank is bad.

but I changed the capture still the same problem, maybe other that has the inside of the bottle.

Make sure it’s not running by looking in the overflow tank and if not can be the water pump itself or the wiring circuit.

Lol, because it doesn’t have one. You have to drain the coolant by removing the lower radiator hose.

Sounds like a cooling fan module went bad. It’s part of the fan assembly on some models it can be replaced separately.

Thanks for your reply. I must mention the fan is able to change the speed from low to medium and to maximum speed when the coolant temperature in the hidden menu on the cluster exceeds 95 degree Celsius.

@kevinmpe8363 still sounds like the fan module to me. I would have it checked

Thanks. I will have to order a fan, even used one and see what happens. Thanks alot

@kevinmpe8363 no problem

Probably the fan sensor module, has to be checked with a scan tool for operation. Also make sure car doesn’t have a blown head gasket.

@@motorcarnut the sensor on the top of the hosepipe ( have to drain the coolant ) the sensor you disconnect the clip then remove, the fans working when the AC is turned on but not to cool, I shall look into that, the pointed brass type sensor or the part that connects to it,thank you so much again

@@motorcarnut thank you now know what the module is ( I ment temp coolant sensor - the module is silver, im going to change both at once ( not expensive). But it's well worth it, thank you for you're help 👍

No problem, but it’s good to diagnose the problems like a stated before instead of throwing parts at the problem but good luck.

@@motorcarnut yes I've had a good look & done research- changed a relay ( from my friends BM - wasn't that but was a long shot as it works on AC) if I'm changing the coolant to change one thing I'll replace the coolant temp sensor ( which im sure it's not but being so cheap I'll do that also while I've drained it ) if it's not either if them then it is what you have said - which I believe it is now also, however the fan module I'll have to remove loads of parts etc so I'll try ( & hope 🤞 it's the easy & cheaper job first ) the fan module will take 2 days to arrive- I want to thank you very much for you good & prompt advice - throwing parts at it is not the answer I agree but them parts are cheaper to buy & ill only replace the coolant once, going for the ones I can do myself first to help my confidence etc) thank you very much,I'm recommending yr channel to a few people 👍, will tell you what solved the problem once it's fixed ( I've a feeling it's the fan module- researching to try it myself 👍

Actually your incorrect, the reason for the terminals under the hood are for more convenient jump starting than going into the trunk and loosing the panel to get to the battery. Actually the battery itself is the best way to charge battery.

i think that might be sage advice on Mercedes, however.

Same thing. Mercedes or Kia, they all operate on a 12 volt system

Then maybe the water pump is your problem. Or the wiring to it.

@@motorcarnut yes I’m certainly thinking it’s the problem. Bottom hose line feels empty. Like I completely hear air when I squeeze it. I just had it all replaced less than 2 months ago. So weird

Try touching the water pump while doing that procedure and see if it’s vibrating

Thank you!