a '56 1.9 Tdi to be precise - it is coming from under the bonnet, from
a black box mounted on the bulkhead, on the extreme o/s, and it has
five or six rubber pipes coming fom it.

Can someone identify this box please? And why might it continue to
buzz? The car appears to run normally.

Thanks.

Paul wrote:
a '56 1.9 Tdi to be precise - it is coming from under the bonnet, from
a black box mounted on the bulkhead, on the extreme o/s, and it has
five or six rubber pipes coming fom it.

Can someone identify this box please? And why might it continue to
buzz? The car appears to run normally.

Thanks.
It is where the bees live.

Presumably something to do with keeping oil/coolant circulating after
the engine is turned off. Lots of modern cars do this.

On 19/04/2010 09:21, Paul wrote:
a '56 1.9 Tdi to be precise - it is coming from under the bonnet, from
a black box mounted on the bulkhead, on the extreme o/s, and it has
five or six rubber pipes coming fom it.

Can someone identify this box please? And why might it continue to
buzz? The car appears to run normally.

Thanks.
It's a vacuum control box.

http://briskoda.net/forums/topic/158... #entry1953342

Chris Bartram wrote:
On 19/04/2010 09:21, Paul wrote:
a '56 1.9 Tdi to be precise - it is coming from under the bonnet, from
a black box mounted on the bulkhead, on the extreme o/s, and it has
five or six rubber pipes coming fom it.

Can someone identify this box please? And why might it continue to
buzz? The car appears to run normally.

Thanks.
It's a vacuum control box.

http://briskoda.net/forums/topic/158... #entry1953342

My diesel Cmax makes similar noises. One source I have read is that the
EGR is excercised a for a few cycles whilst it is warm to reduce the
risk of it sticking after cooling down.

Bob

On Apr 19, 9:39*am, Chris Bartram
wrote:
On 19/04/2010 09:21, Paul wrote: a '56 1.9 Tdi to be precise - it is coming from under the bonnet, from
a black box mounted on the bulkhead, on the extreme o/s, and it has
five or six rubber pipes coming fom it.

Can someone identify this box please? And why might it continue to
buzz? The car appears to run normally.

Thanks.

It's a vacuum control box.

http://briskoda.net/forums/topic/158...ge__p__1953342...


Many thanks - what does it do please? Or rather, what devices does it
control the vacuum to, and why would it worry after the engine is
switched off anyway?