BMW E39 Thermostat, Belt, Tensioner and Pulley Replacement. 

Hi there, at the moment I do not foresee any maintenance on the coolant system of our E39, as we just completely filled and bled the system. However, it really is as easy as shown in the video. If needed, you can open the second bleed screw on the radiator hose. Open them both, fill up the radiator expansion bottle, and retighten the screws as soon as fluid comes out. Do this when the engine is cold. Be careful not to exceed the cold filling level mark on the bottle, as chances are it will push out through the top of the bottle as the engine heats up. Let the engine run up to normal running temperature, and set the heater, including the scroll wheel in the middle vents, to max heat. Let it run for about 5-10 mins, keeping an eye on coolant temp gauge and let completely cool. Afterwards you can undo the bleed screws once again and fill up, to the max cold level mark as needed. Close everything up when done. That's all there is to it ;).

Thank you, it helped aloooot. I've done it and have heat again! Thanks again!

Great! Glad it worked out :).

I suppose it's a bit of a struggle, but I had no problems or issues getting the bolts back in.

Hi, it was still in good condition ;)

You’re a legend! Thanks for the videos, you’ve provided some inspiration for my E39!

This was only the accessories belt 😉

Hey, You can order them with your VIN number at your local auto parts or if that doesn't work you can order it through us here: www.wearemomus.com/service 😉

It's the same process of filling it up afterwards. Just don't drive and let the car overheat!

@@TheMomusCollection what? Im saying that when I took off the fan, the water pump squirted a little coolant out. I bought a new one anyway. It is a good time to replace it while doing the oil filler housing gasket

Probably the switxhblock to blame in the driver's door, or the wiring / connectors leading up to it. Good luck!

@@TheMomusCollection hi again, I took the switch box off and a visual only from the outside it looks ok inc all wires/plugs etc, I also thought it might be the switch box, but then I thought is it possible for that box to suddenly nock out all 4 windows and all mirror functions/basically all the switches on the box don't work. (I wasn't sure! ), and these switch units are not cheap. do u think a faulty switch box can knock out all 4 windows and all mirror functions?. thx dave

@@regieboix2 absolutely, our beloved E39 is now a classic. Things will break.

@@TheMomusCollection cheers

There is new stuff coming soon! :)

Mömus glad to hear!!!