Coolant Vacuum Bleeder - Thoughts??

[BristolE30]

Hey zone,

As some of you may have noticed I've been having problems with bleeding my M10 cooling system/heater problems. I want to completely rule out an airlock so I figured I'd buy one of those Ebay vacuum bleeders. They look extremely simple, and then at least I'll know airlock is not an issue (could be heater valve, matrix etc).

https://www.ebay.co.uk/itm/Universal-Co ... %7Ciid%3A1

What does everyone think of them, anyone used one? My only concern is could it damage the Thermostat? Applying a vacuum to the system.

Appreciate any thoughts,

Jo

[arrisbmw]

I would follow Brians advice on bleeding , which can be a pig on a 6 pot and if no heat coming from the heater after 2 mins can crack the back of head around no 6 pot. /www.e30zone.net/forum/viewtopic.php?f=2 ... m#p2058239

[HJ1981]

If that link does not help you, you can consider the hand pump/coolant system testing kit thing they got at your local parts store.

[BristolE30]

If that link does not help you, you can consider the hand pump/coolant system testing kit thing they got at your local parts store.

Yes the link I believe only really helps with the M20 engines that have bleed screws. The M10 system has none, and is completely reliant on you being able to massage out the airlocks. Seems a bit to risky for me...

Will try the vacuum kit!

[BristolE30]

Also I’m not getting any over heating so I think it’s safe to say not much risk of head cracking. I hope so anyway!

[aimlessrock]

Just seen your PM=-that looks just like mine, they are very reasonable and saves lots of hassle (i have an M20)