Walnut blast / valve cleaning

marioz4

Member
So, as i don't have enough on the "to do list" already ( sarcasm) was thinking doing the valve cleaning. Now my preferred method is walnut blast but here in Barcelona there is no one who dos it, so i guess it will need to be with some of those carbon cleaners.

Questions:

1. after how many miles would you consider doing valve cleaning - i am on 96.000km or 60.000miles
2. preferred method that you used or would like to use
3. Cost


Separate to this, i cleaned vanos sensors and whouuuu what a difference. So this make me thinking :o is there MAP or MAF sensor too, and where is it located on 35i engine?

Happy Sunday!
 
Fit an oil catch can, this will reduce carbon build up on your inlet. You can get professional chemical clean machines like Forte or Terraclean.
Both come with adapters to ensure direct injection engines are cleaned properly.
 
Have a read of this It may help

https://z4-forum.com/forum/viewtopic.php?f=23&t=120044
 
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