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Bumping in hopes the OP can re-upload the pictures to Imgur instead of photobucket - they can no longer be viewed.
 

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I want to say thank you for the write up:thumbup:. I just completed this job which took about 16ish hours to complete:cry: Things I learned from this job as follows:
  • Order CCV plastic pipes because you will probably break them.
  • one pack of medium size black zip ties
  • 1 foot of 3mm vacuum tubing
Tech tips:
1. Be very careful leaning on stuff and prying things as plastic connectors and components etc are very brittle with age.
2. There is no reassembly DIY that I'm aware of so take pictures or have a good memory of the sequence which things were removed. I had to remove parts to install another part because the sequence was wrong.
3. There is one screw retainer that holds on the fuel line. Screw that back in while the intake manifold is upside down and rotated rather then trying to reach behind it when its installed. I skipped this step, oh well.
4. Replace vacuum lines on the back of the intake manifold while its on the bench.
5. Align the lower intake boot hose clamps like this to ease installation. Use a wobbly socket too.

6. Inspect the intake valve ports really well and clean out every speck of crud that may fall in there. Use a shop vac to suck, air compressor, whatever you got.
7. Shop vac out the 2 holes in the block where the hard coolant lines came out of. Leave no bits of broken plastic floating around the cooling system! Clean those holes so well you can eat off them. Make sure no rubber residue is left behind!
8. Clean/inspect your DISA, clean ICV valve while your in there.
 

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I keep having leaking issues with my hard coolant lines on my m54
Initial symptom was slow coolant leak with spray over front of inlet manifold and oil filter housing. I replaced the hard coolant pipes - I made sure to pull out the broken plastic from the original pipes and tried to clean the mating surfaces, but did not visualize them or sand them with fine grit. I used rein replacement pipes.
I had a huge leak after the first change - turns out I had ruined one of the o rings, which I only discovered once I pulled the car apart. I then replaced this with a genuine o ring and reinserted. After a few drives, I noticed the same coolant splatter on the inlet manifold and can see a small amount of coolant on the block, so I must be leaking again

Looking for tips
Should I sand down the mating surface
Has anyone had problem with these pipes from rein?
Should I use RTV?

I really don’t want to take off the inlet manifold again!!!!

Keen to hear about your experiences and thoughts!


Sent from my iPhone using E46Fanatics
 

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I am about to do this service on my car. I struggle believing that ALL of the coolant needs to be drained from the radiator and the block. Realistically, how much coolant do I really need to drain? Or, is it just easier to drain it all?
 

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I am about to do this service on my car. I struggle believing that ALL of the coolant needs to be drained from the radiator and the block. Realistically, how much coolant do I really need to drain? Or, is it just easier to drain it all?
I’m working on this as I write this, and yes, you need to drain the coolant from the expansion tank. I did not drain it from the engine block and it didn’t seem to be necessary.

Alexis
 

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I’m working on this as I write this, and yes, you need to drain the coolant from the expansion tank. I did not drain it from the engine block and it didn’t seem to be necessary.

Alexis
I finished this a few weeks ago and I’m with you. I drained the expansion tank, nothing else. Just let the coolant from the pipes drain into a pan, used a rag to draw a little bit of coolant out of the head/stat housing so that it would be clean and dry for some rtv and the new pipe O rings.
 

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Hey, guys I just change the started and order the hard lines. I Heard that they may break inside the block. Do any of you have a nay trick to prevent that or if it happens what to do to remove it without damaging the block?
 

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I keep having leaking issues with my hard coolant lines on my m54
Initial symptom was slow coolant leak with spray over front of inlet manifold and oil filter housing. I replaced the hard coolant pipes - I made sure to pull out the broken plastic from the original pipes and tried to clean the mating surfaces, but did not visualize them or sand them with fine grit. I used rein replacement pipes.
I had a huge leak after the first change - turns out I had ruined one of the o rings, which I only discovered once I pulled the car apart. I then replaced this with a genuine o ring and reinserted. After a few drives, I noticed the same coolant splatter on the inlet manifold and can see a small amount of coolant on the block, so I must be leaking again

Looking for tips
Should I sand down the mating surface
Has anyone had problem with these pipes from rein?
Should I use RTV?

I really don’t want to take off the inlet manifold again!!!!

Keen to hear about your experiences and thoughts!


Sent from my iPhone using E46Fanatics


You did lubricate the o rings before putting them it right?? If you don’t, they will not always seal properly


Sent from my iPad using E46Fanatics mobile app
 
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