sorry to jump in here, my T6 Velle has started losing coolant on a daily basis, having to top it up, AA did a pressure test today and said showing no fault, I suspected the EGR now not so sure, would the EGR leak show up on a pressure test
sorry to jump in here, my T6 Velle has started losing coolant on a daily basis, having to top it up, AA did a pressure test today and said showing no fault, I suspected the EGR now not so sure, would the EGR leak show up on a pressure test
Replied to your PM.
How much coolant u loosing each day?
...
Miles driven?
How much coolant u loosing each day?
...
Miles driven?
The T6 EGR cooler / EGR valve assembly has fixed mounting points at both ends. I’ve seen plenty of tube bundle heat exchanger issues over the years because of this, it doesn’t allow for linear thermal expansion along the tube length. I've seen tube leakage and cracked mounting brackets due to thermal stress.
Industrial / maritime heat exchangers use brackets around the casing to allow the shell and tubes to expand.
Looks like it was designed to fail!
Industrial / maritime heat exchangers use brackets around the casing to allow the shell and tubes to expand.
Looks like it was designed to fail!
I’m having the same issue with my Gen 6, which started just after lockdown. There are no signs of leaks & it’s pressure tested, which passed. The garage topped it up almost to the top of the expansion as we were just about to go to France. We’re now in France, having done about 400 miles & the coolant light has just come on. Checked the tank & it’s down below minimum. I noticed a small wet patch near the rear offside wheel on the way here, but it seemed to be just water. Is there a rear coolant fed heater in Caravelles? If it’s not that I’m thinking it the EGR cooler?
Dropped my ‘velle at main dealer this morning
They’re saying it’s egr and it’s on back order
Sis going the same old Song as many others I think
ITa under warranty so they’ve got to provide me with a replacement vehicle, offered me a corsa which was naturally rejected so got to wait 2 days for something else
I’ve insisted on confirmation that in the event they change egr and it continues they will
Continue to honour the warranty
have been advised it is likely to continue and will
Eventually need a new engine
They’re saying it’s egr and it’s on back order
Sis going the same old Song as many others I think
ITa under warranty so they’ve got to provide me with a replacement vehicle, offered me a corsa which was naturally rejected so got to wait 2 days for something else
I’ve insisted on confirmation that in the event they change egr and it continues they will
Continue to honour the warranty
have been advised it is likely to continue and will
Eventually need a new engine
Looks like VW are taking care of your van anyway. It’s an indication that coolant is passing through the engine, normally a good way to spot a leaking head gasket but also any other internal coolant leak such as the EGR valve or EGR cooler. The bigger the leak the easier it is too find.
If you watch this guys vlogs, he is doing up a T5, he is having a similar problem with the cooling system. The last vlog is where he is having the head skimmed so no results as yet to a cure. Interesting and worth a watch.
www.youtube.com
Dan Chambers
A channel about me 'playing cars' as my wife calls it! The first series of episodes will see me take an unloved 2006 VW T5 Transporter and show it a bit of l...
I’ve just put piece of paper under the exhaust whilst the engine was running & after a few minutes water started dripping out. I put my head down to have a closer look & got a whiff of hot coolant coming from the exhaust, so I’m definitely thinking it’s the EGR cooler. It’s out of warranty, so looks like it’s going to cost me a bit when we get home.
Oh no!! VW told me this morning that the egr is totally unavailable and on back order
If you can get your order in ASAP so at least it’s gonna get to you sooner rather than later
Where in Uk you based as in County
Sorry to hear that, unfortunately some of the coolant might be finding it’s way past the piston rings, keep a close eye on the oil dipstick and oil filler cap for emulsification or what some on here call ’mayo’. VW say it’s ‘normal‘ on the T6 filler cap, IMO I really don’t think it is.
I’d avoid driving it if possible as water / steam don’t do engine internals any good. Steam can damage the turbo blading on the exhaust side. I would certainly give it an oil and filter change.
As water has made it’s way into the cylinders make sure you turn the engine over every few days to prevent rusting piston rings.
I'm having same problem, suspect egr cooler. Ordered the genuine vw part from poland via eBay 
for 345 Inc vat and delivery. Hopefully changing today
for 345 Inc vat and delivery. Hopefully changing today
So.. VW who were going to get it done today say the whole front of the van is off so as to fit this thing, they’re running out of time so expect it to be finished but not tested until Monday
Said it is a huge job, I’m thinking more like not even started it, but hey ho
Said it is a huge job, I’m thinking more like not even started it, but hey ho
I suprised they didn’t give you an accurate time estimate, they must have done plenty of them before.
