[nazali]

Just a quick ask

1> Can I just do a top up of the exp. tank, if its a little low (no errors)
2> IF doing a drain and fill must I use a vaccuum system
2a> if yes, there is the high and the low, which would I use ?

txs

[nazali]

sorry another one,
why can I not just use a watering can method and then "BLEED" it using the factory procedure ?

txs

[MarcoZandrini]

1. Yes, you can top off the coolant levels (1 for the engine, 1 for the intake manifold intercooler).
2. The system has to be filled by using a vacuum filling system.
3. There a procedure, listed in the BMW TIS, that outlines how to bleed the system. So, no, you can not bleed it the traditional method.

[freakystyly]

You can still use the old method (look it up, there's a lot of steps) but it isn't as effective. BMW recommends the vacuum method because it removes more air from the system and also their liability for error.

[nazali]

txs all,

so what I've looked into further from also your replies,

1> yes
2> there is a high and low and both must be vacuum filled
a> but it looks like the drain point according to NewTIS is the same point for both

There appears to be a fill section in TIS for high and low
and also there seem to be 2 separate bleed sections again for high and low

Would iot be simply easier to get BMW to do a refill at that point if I wanted a system change done

Have you guys done it your yourselves

awesome