Z4Mariner wrote: ↑Sat Nov 19, 2022 4:02 am
Hi Fernando306 -
I've enjoyed reading through your posts and the help you've gotten from fellow owners here. My 2006 coupe has almost 90K miles now, but it's 'resting' for the winter. I plan to do many of the same things you've just completed, though with some differences between the N52 and the M54 engines.
Did you replace the hard coolant pipes ? I used to own a 2005 325xi sedan with the M54 engine and similar hard coolant lines to yours. I replaced those hard coolant pipes at 12 years of age (166K miles), and I could not remove them without breaking the #1 pipe in Gregory Tolson's diagram. The forward L-shaped end twisted off w O-ring connector piece still in block/head. I was able to clamp a single jaw from a gear puller in a vise grip pliers and slowly pull it out a little at a time. The pipes hadn't leaked yet, and they looked fine from outside, but the plastic deteriorates with heat and time, just like the "Mickey Mouse" flange on an N52 cooling hose.
Thanks for follow-up on your progress. It's a great help to see people really caring for their cars instead of just the bare minimum (if even) oil and coolant changes!
Awesome! I have plenty of pictures / video, I need to edit them together and upload to Youtube.
Yes. I did replace the coolant pipes under the intake manifold. Majaor inconvenience! Like you, I also had a very hard time pulling them out, but figured that was a ticking bomb. Once it was out, I cleaned the port really well with a dremel bit with a wire brush, so it became smooth again. Also vacuummed the port, just to make sure no debree is left.
The ICV was pretty carbonized, so that was nice to clean. PCV system was fine, but replaced anyway.
One note that was a bit of a let down, is that the lower radiator hose from REIN leaked from the start. I had to reuse the old one. Of course, I ordered a new BMW Genuine now, to go along with the new Genuine BMW radiator. I think the whole thing cost like 2.5k dollars total
The new radiator just shipped from FCP, looking forward to pop that one in!