Disa valve

Hi guys, still waiting on my log book to arrive so unsure what engine I have in my 2011 Z4, it’s a 3litre Auto.

Reason I’m wanting to know as trying to familiarise myself with engine, I’ve been reading about the Disa valve but what I wish to know is; is the E89 Z4 30i fitted with them and is there just one or two ?

Stevie 👍
 
If it’s a sDrive 3.0i then the engine will be a N52B30. As far as I am aware it has a DISA valve. But don’t take my word for it!
 
Cheers Tinker,
I’ve found it has two, but can’t seem to find best place with reputable feedback also no upgrade kits.
Maybe I over think things but I’m more on preventable maintenance rather than it works so let’s forget, personally as it’s a serviceable part should be on list for service but isn’t.
 
The N52B30 has revised DISA valves over the older M54 engine so you would be unlucky to have any problems there. If you want some good bedtime reading...fill your boots: https://z4-forum.com/forum/viewtopic.php?f=2&t=113354&p=1634581#p1634581
 
Wow cheers Ph001,
Just from a quick look at link seem I’m gonna be busy while working nights reading lol. Excellent help indeed.

But from initial reply I take it I don’t need to change them at all ?
 
Steviep351 said:
Wow cheers Ph001,
Just from a quick look at link seem I’m gonna be busy while working nights reading lol. Excellent help indeed.

But from initial reply I take it I don’t need to change them at all ?

Correct. I certainly wouldn’t regard them as a maintenance item on the N52.
 
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