Turbo Hose!

rallye_turbo

Registered User
Joined
Aug 23, 2008
Messages
48
Reaction score
10
Points
8
Location
NULL
Think I have found the problem with fumes coming into cabin! Not sure if they are exhaust, oil, but really made me feel ill. Anyway, I think it is the red silicone hose that connects inlet on turbo to trackslag inlet - 06A-145-832L. It is perished through heat I guess. Anyway - Audi want £155 + vat for it! Do Forge make one?

Cheers, Paul
 
Many thanks!
It needs replacing anyway. Can't say I noticed any loss of boost. I just hope it stops the fumes!
 
Generally won't get fumes from compressed air... I'd check for split pipes on the PCV system too...

<tuffty/>
 
Yeah - I am not sure what it is. It smells a bit like oil and exhaust and when boosting, smells a little different. I have to drive with windows open. Really bad when closed with air con/recirculate etc on or off - it doesn't matter. I have checked PCV and can't see anything obvious.
Will see what this does and take it from there.
 
Exhaust leak would be making a fairly obvious noise... split PCV pipes are not always easily spotted as they tend to split where oil settles... engines are meant to look dirty (except mine of course) but not oily... look for obvious wet patches as they will have only got wet from having oil spat out..

<tuffty/>
 
Could be oil vapour ingested into the compressor from the PCV, but if that smell was coming out, your boost would be coming out too...

My PCV had a valve which was completely gunked up which I couldnt see until I took it off, and a hose that looked fine but was completely disintegrated on the inside. Only became apparent when touched...

Have you checked the PCV hardpipe coming out of the oil filter housing? it is plastic and commonly breaks in half...
 
Thanks for replies.
Had a look at exhaust and it all looks good. Waiting for hose to arrive from Awesome today. I am not convinced this is the problem, but it would have needed doing anyway. Boost gauge does not suggest any loose of pressure. I will examine PCV piping in more detail. I pulled of inlet and couldn't see anything untoward -around or beneath apart from some oil lower left of power steering pump - no other oil leaks etc.
The fumes are quite nauseating, so I would expect to see something quite obvious! I thought it could be manifold or hot side of turbo, but that would be an obvious noise. I can't tell if it is exhaust or recirulcated pressured air from breather smell. Not hearing any exhaust sounds, at least not about 3" downpipe, de-cat and big exhaust....
 
When I first got my at the cabin filled with smoke as soon as in traffic, my problems disappeared when I did an N249 delete and replaced the PCV hoses when adding a catch can. I think the culprit was the split complex pcv elbow arrangement on the inlet manifold - it didn't affect the boost pressure.

split was in the inside of the bottom u bend. (I did also have some oil leaking and thought it might be the engine burning the oil on the sump - but pretty sure it was the split hose)
IMAG1735
 
That will explain why then, thanks.

it is much simpler now, without all those pipes.
 
Well I replaced the red hose (turbo to inlet) from Forge. Nope - burning, oily exhaust gas
Smell still there. Can't really drive the car far becomes of fumes now. Nothing obvious though and I am sure it would be as smell so strong. Will pull of inlet tomorrow and look at PCV piping again in more detail.
Annoying thing is that my boost gauge has stopped working as a result of fiddling with piping I presume!
 
Also check the carbon canister connections, the plastic pipes crack and let fuel smell into the cabin, which is worse when the blowers are on, mine was split underneath where you couldn't see it.
 
Why do you need to remove the inlet manifold to check the pipes you can disconnect the whole array of piping without removing the manifold.

side manifold connector and remove the hose to the brake servo
underside connector
oil filter connector (this does fall to pieces - its made of some sort of bakelite
 
Problem solved!
Can you believe this - the rear boot seal was damaged and was letting in exhaust fumes. Must be a low pressure region and was being sucked into car. Funny thing was that it was okay when stationary - bad when on the move. Anyway - all good now.
 
  • Like
Reactions: Alex C

Similar threads

Replies
31
Views
2K
Replies
3
Views
938