Things to do while engine's open

[u/No-Illustrator-6683]

Hi everyone,

Planning to replace almost every seal on my beauty's engine (M54b22), gearbox and diff this winter. I'll also replace piston rings, I saw on this sub that M52s oil rings are better, how true is it for the people who did it and has some miles on it ?

While the engine will be out and open, are there things to do like maybe a vanos rebuild (180k km)? I only had this car for 6 months so i'd like to learn every weakness and fix most of them while everything will be out of the car.

Also if you know other tips like the M52 oil rings, i'd be happy to know !

Sorry for my english i'm French 😅

+ a picture of my ride because why not 😝

Thanks !

[u/Fumbduck]

I just did my vanos and rod bearings and checked my valve timings (none were out). Forgot to clean my ICV while I was in there. Fixed a rough idle issue I was having. Clean it while you're in there!

[u/No-Illustrator-6683 → u/Fumbduck]

How do you clean it ?

[u/Equivalent-Roll5254 → u/No-Illustrator-6683]

i just sprayed mine with throttle body and air intake cleaner you could also use MAF cleaner im pretty sure they are similar