Member Since: 24 Jun 2013
Location: Cambridge
Posts: 29
does anybody know what this pipe is for
hi could anybody tell me what this pipe is for as i have just bought this 2012 d4 ex police and when i opened the bonnet i saw this now i drove it back 170 miles with no problem very responsive and not lacking in power but when i found this pipe i pushed it back onto where the pipe comes up which is in the picture i then took it for a drive and instantly went into restricted performance and would not go over 60 miles an hour when i got back i cleared the code and took the pipe of and it drives fine again although pulling away at low revs i can here a sound like some one is blowing a blade of grass in the palm of their hands (sorry but its the only way i can describe it) for about a second then its all ok any help would be appreciated as i dont want to give it to a main dealer and im worried my mechanic will not have a clue
28th Nov 2016 3:44 pm
lynalldiscovery
Member Since: 22 Dec 2009
Location: Maidstone
Posts: 7274
What was the fault code?
28th Nov 2016 4:13 pm
Patroltodisco
Member Since: 24 Jun 2013
Location: Cambridge
Posts: 29
hi I only have a cheap generic code reader and all it said was manufacturer control but the code was p1247
28th Nov 2016 4:21 pm
lynalldiscovery
Member Since: 22 Dec 2009
Location: Maidstone
Posts: 7274
Member Since: 24 Jun 2013
Location: Cambridge
Posts: 29
The strange thing is it drives fine albeit the little noise I hear but it has loads of power but as soon as I push that pipe back on it goes into limp mode
28th Nov 2016 7:38 pm
SteveNorman
Member Since: 14 Oct 2005
Location: Somerset
Posts: 1146
The pipe coming up vertically is the oil suction pipe to suck the oil from the sump on an oil change. It should have a black plastic bayonet type cap on it.
The other pipe is from memory a vacuum pipe. It fits on the air cleaner housing. Look just below and behind the rear air mass meter you should see a stub sticking out. This allows it to draw clean air from the filtered air in the air filter housing.
Regards
Steve
28th Nov 2016 10:53 pm
Patroltodisco
Member Since: 24 Jun 2013
Location: Cambridge
Posts: 29
Steve Norman I will have a look tomorrow you have me worried now as if that vac hose is suction pipe I may have sucked oil into the vacuum system cos when I pulled the pipe back off a drop of oil did run down the side of the metal pipe
28th Nov 2016 11:40 pm
dgardel
Member Since: 03 Nov 2009
Location: Greater Venice
Posts: 2025
SteveNorman wrote:
The pipe coming up vertically is the oil suction pipe to suck the oil from the sump on an oil change. It should have a black plastic bayonet type cap on it.
The other pipe is from memory a vacuum pipe. It fits on the air cleaner housing. Look just below and behind the rear air mass meter you should see a stub sticking out. This allows it to draw clean air from the filtered air in the air filter housing.
Regards
Steve
Yes, this is the cap
The other pipe look like this one (but on the Filter side)
Member Since: 24 Jun 2013
Location: Cambridge
Posts: 29
Would just like to say a big thanks to everyone who has steered me in the right place for these pipes I have not had a chance to look yet but I'm sure you are right as I have seen pictures and diagrams which were very helpful I even got the seats I wanted today from an ad I posted in the wanted section this forum is the best by far thanks again
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