Member Since: 08 Sep 2020
Location: Buckley, North Wales
Posts: 1150
Smell inside and leak
Hi all
Been asking my mechanic for quite a while but he’s too busy
I’ve got a gear oil leak. Not much but the smell is coming through the blowers and when stationary, the blowers can’t be on due to how bad the fumes are in the car
Mechanic says it’s a metal pipe that has corroded and is leaking gear oil, which is causing smell to come in
The pipe was metal, ribbed and about 2” ID and about 8-12” long (I think)
I’m wondering if this is a part I can repair myself? Or is it too hard to do alone?
Is it narrowed down to one issue or is it a stab in the dark? He seemed pretty sure it was this pipe.
Just can’t seem to get an answer always too busy
Meanwhile I’m choking and got oil dripping on my drive way ruined
It’s been a constant problem the past year. Just haven’t needed the blowers
TiaDisco 3 SE Manual 2005 V6 2.7
Buckley, North Wales
8th Oct 2021 10:44 am
Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10365
I press the recycle button on the blowers, as soon as (or before) I come to a stop, and then leave on all the time.
8th Oct 2021 12:52 pm
lynalldiscovery
Member Since: 22 Dec 2009
Location: Maidstone
Posts: 7274
I think you need to post a pic of the pipe to give people an idea.
Is the pipe steel?
Only pipes that are approx 2 inch dia are the turbo pipes.
2011 D4 XS - OBD port protection, RLD spare wheel protector, All LED interiors lights, Timed Climate enabled, iiD tool paired.
2011 D4 Landmark - Stolen from same dealer before I paid for it
2011 D4 GS - Stolen whilst at dealer ... All LED interiors lights, DRLs, Spare Wheel protector.
1996 300Tdi - Eaten by tin worms
8th Oct 2021 1:59 pm
PROFSR G
Member Since: 06 Mar 2017
Location: Lost
Posts: 4657
These are the pipes on top of your gearbox/transfer box. You can see the long black plastic breather from the T/box, and then the gearbox (3 part) pipe all of which can be seen to run under the exh crossover and are anchored alongside the vacuum pump.
It's highly unlikely your metal pipes are corroded unless you have been using your D3 as a submarine.
More likely, (1) The rubber joint on the gearbox pipe has failed, (2) The plastic pipe from the T/box has failed. (3) There is a partial blockage of one or both pipes causing excess pressure to build up in the boxes. (4) There is too much oil in the gearbox and or T/box, which is being forced out of the breather causing the smell and leak, or a combination of all four!
It's tricky to get at them but it can be done with a bit of patience. Maybe try a borescope/inspection camera to have a look first and see exactly where the oil is exiting, but you're first port of call is to check the correct levels are present in both boxes.
Click image to enlarge
One solution is to temporarily disconnect the pipes one by one and see if the situation improves. Hopefully that will eliminate the offending pipe. The transfer pipe can be disconnected easily by pressing in the red collar and pulling out the pipe. You can access the rubber elbow on the gearbox pipe from the right hand side of the gearbox! You will need to clean off any oil or the smell won't leave, and make sure you put those pipes back once the problem has been found. Compressed air can be used to blow through the pipes, but NOT into the gearbox end of the pipes or you will blow the seals!!yµ (idµ - eAµ) ψ=mψ
8th Oct 2021 2:19 pm
cmb2020
Member Since: 08 Sep 2020
Location: Buckley, North Wales
Posts: 1150
Thanks all!
Yes that’s it the crossover pipe
I just got 2 steel ramp things so I’ll drive the front end up while I’m raised mode and her nice and high up. Then get some grubby clothes on and get my head up the gear box. And try these things.
Will update
And Pete LOL good idea always a simple solutionDisco 3 SE Manual 2005 V6 2.7
Buckley, North Wales
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum
... All LED interiors lights, DRLs, Spare Wheel protector.
