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Yes, he did use a really thin bead of RTV. I elected not to for a couple reasons: (1) BMW didn't so why should if I'm using an OE part, and (2) cleaning up RTV at the next change would be a true...

Hmmm...Possibly. I know the 89 in/lbs is crazy low. It may not have felt tight enough, so I may have gone too tight.

Here’s a pic of a before and after of the block. ...

Thanks for this very detailed list!!!

Totally agree on cleaning the engine block surfaces of any residue prior to installing the new parts. My thermostat keeps weeping coolant. Not bad but...

I would guess that yes, there are more bits inside somewhere. So far, no weird noises or behavior. I replaced the first one at about 60k(?) or so?

The last one was at 125k.



I wouldn’t...

ECS also has BMW kits with BMW bits. I bought one the last time. Had a REALLY tough time with the prior cooling system refresh with aftermarket parts. Also, the ‘upgraded’ metal impeller WP self...