Any idea what this is for

[Disca]

Just noticed this while having a look around, am I missing something?

In context

 

[ben g]

My bracket is closer to the windscreen washer fluid (pre-facelift).

It's something to do with US cars I believe. Something we don't have in the UK.

 

[PlumbNB1]

Maybe in here somewhere, I had a similar empty bracket on my '53
http://www.z4-forum.com/forum/viewtopic.php?f=2&t=53000&start=15#p772764

 

[inkey$]

Isn't that the space left for the emmisions control air pump when building an ///M engine unit?

 

[-Tom-]

Isn't that the space left for the emmisions control air pump when building an ///M engine unit?

Could well be. There's a big circular plastic lump bolted onto that holder on mine! Whereas it was the bracket only on my 3.0...

 

[Wondermike]

As Ben says, it's a secondary air pump used in the US but not here.

 

[Disca]

Ah okay, just never caught my eye before until I was killing time browsing under the bonnet

 

[igeak691]

That explains why I don't get responses when I ask about the secondary air pump.

Is there a way to use INPA to stop the ECU from utilizing the secondary air pump? So that the CEL doesn't turn on?

 

[Bing]

Isn't that the space left for the emmisions control air pump when building an ///M engine unit?

Could well be. There's a big circular plastic lump bolted onto that holder on mine! Whereas it was the bracket only on my 3.0...

Ditto

 

[Citation 650]

This?

 

[Bing]

Yeah, that's what's in mine, but the bracket holding it is where Disca's is. Was it only fitted to the M in Europe ?

 

[PerryGunn]

As Ben says, it's a secondary air pump used in the US but not here.

Not just in the US, mine's near the front - same as Citation's. It's only active at startup and then turns off once the choke eases off - AIUI it was fitted to any engine that needed it for emissions control

 

[Disca]

The actual reason for Perry's post is that he spotted a reason to show off his immaculate engine bay

On-topic, maybe Alpina's are slightly changed compared to the standard models?

 

[PerryGunn]

The actual reason for Perry's post is that he spotted a reason to show off his immaculate engine bay

That picture's well over two years old - it's cleaner than that now :wink:

On-topic, maybe Alpina's are slightly changed compared to the standard models?

Yes, that's why I said that the secondary air pump was fitted to any model that needed it for emissions control on startup

 

[Disca]

The actual reason for Perry's post is that he spotted a reason to show off his immaculate engine bay

That picture's well over two years old - it's cleaner than that now :wink:

Mine needs doing if you're bored