No, but can have the cooling system pressure tested to find the leak.
Possibly charge cooler leaking coolant into the intake when engine is warm.?
Coolant leak / Mystery - help!! SOS!!
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Possibly charge cooler leaking coolant into the intake when engine is warm.?
Just an update.... The leak was traced to the exhaust gas cooler thingy... however there was also a problem with the charge air cooler... which caused the engine to overheat as the temp gauge and water level warning were reading incorrectly.... leading to the cylinder head failing.... damaging one of the cylinders...... 
Long story short, nearly £10k later we have a van with a brand new engine and no water leak... and no time to go camping cos it's overtime to pay for it all 
Long story short, nearly £10k later we have a van with a brand new engine and no water leak... and no time to go camping cos it's overtime to pay for it all
jeez . . .
a brand new engine!!
so route cause was EGR cooler leaking AND water charge cooler leaking. - not good.
a brand new engine!!
so route cause was EGR cooler leaking AND water charge cooler leaking. - not good.
I hope it's okay to tag onto this existing thread.
I'm losing coolant, 700ml in 550 miles.
I've pressure tested the air charger, it lost 26mbar in 45 mins. It had a very thin oil film with small drops of water in it, when wiping a gloved finger inside it. I guess this could be condensation from a leak elsewhere.
Is the next step to pressure test the EGR chiller?
Seems horrible to get to, I think I'd rather just replace it for the effort.
One reason I'm a little reluctant to get torn into it is bleeding the coolant afterwards. I don't have the software. Can I just put a vacuum on the reservoir?
I'm losing coolant, 700ml in 550 miles.
I've pressure tested the air charger, it lost 26mbar in 45 mins. It had a very thin oil film with small drops of water in it, when wiping a gloved finger inside it. I guess this could be condensation from a leak elsewhere.
Is the next step to pressure test the EGR chiller?
Seems horrible to get to, I think I'd rather just replace it for the effort.
One reason I'm a little reluctant to get torn into it is bleeding the coolant afterwards. I don't have the software. Can I just put a vacuum on the reservoir?
Hi,
I just removed the corrugated pipe leaving the egr valve. It had water laying in it, enough to completely soak a sheet of kitchen role.
It wasn't pink like my coolant, which is strange. It seemed to be too much for condensate.
Should the egr valve be dry and sooty at all times?
I just removed the corrugated pipe leaving the egr valve. It had water laying in it, enough to completely soak a sheet of kitchen role.
It wasn't pink like my coolant, which is strange. It seemed to be too much for condensate.
Should the egr valve be dry and sooty at all times?
If anyone could answer this I would find it extremely helpful also!
I think I have this ERG issue as an loosing coolant, needs topping up every few hundred miles. How urgent is it to get this fixed, currently in France and not due back for 2 weeks. Can I keep topping up? Will plain water do for the moment or do I need the pink stuff right away?
topping up with water is ok for 4 or 5 tops ( about 2/3L)
but after that you need to use neat G12.
as plain water can corrode the alu and block.
++
Loosing Coolant . . . . . !!!
did i mention, that after the Euro trip the low-coolant light com on. . .,
that's odd i thought, so i topped it up and carried on.
well imaging my surprise when a tank of diesel latter the same thing happened.
couldn't see a leak,
couldn't small a leak (coolant leak has a very distinctive sweet smell.
my instant gut feeling - EGR COOLER.
the van is still under ALL-IN warranty, so i started making my case & building evidence.
T6Forum - window sticker (reverse) in the sun
oooosh.
here you can see the...
did i mention, that after the Euro trip the low-coolant light com on. . .,
that's odd i thought, so i topped it up and carried on.
well imaging my surprise when a tank of diesel latter the same thing happened.
couldn't see a leak,
couldn't small a leak (coolant leak has a very distinctive sweet smell.
my instant gut feeling - EGR COOLER.
the van is still under ALL-IN warranty, so i started making my case & building evidence.
T6Forum - window sticker (reverse) in the sun
oooosh.
here you can see the...
cheapest i found for G12+topping up with water is ok for 4 or 5 tops ( about 2/3L)
but after that you need to use neat G12.
as plain water can corrode the alu and block.
++
Loosing Coolant . . . . . !!!
did i mention, that after the Euro trip the low-coolant light com on. . .,
that's odd i thought, so i topped it up and carried on.
well imaging my surprise when a tank of diesel latter the same thing happened.
couldn't see a leak,
couldn't small a leak (coolant leak has a very distinctive sweet smell.
my instant gut feeling - EGR COOLER.
the van is still under ALL-IN warranty, so i started making my case & building evidence.
T6Forum - window sticker (reverse) in the sun
oooosh.
here you can see the...
Thank you.
Assuming my issue is the ERG how urgent is it to get it fixed? Currently in S France and not due back for 10 days.
So I have had my EGR replaced by VW (£1967- glad I did not have to pay!!) but am still losing coolant. I am sure one can smell it mixed in with the exhaust. What else could be the issue - rate of loss is about 200ml / day when the van is being used. No sign of any leaks or puddles on the ground. Any thoughts?
No sign of coolant in the engine oil - mayonnaise on the filler cap or dipstick.
If you’re still loosing that much, it’s either a turbo or head gasket, a compression test should give you a definitive answer if it’s the head gasket or not.
Try running the engine up to temperate with the coolant bottle lid off, bit of a boring job, you kinda have to sit there and watch for any air bubbles, you can also smell the coolant, if it emails like exhaust fumes, it’s almost certainly a head gasket.
How many miles has the van done?
Try running the engine up to temperate with the coolant bottle lid off, bit of a boring job, you kinda have to sit there and watch for any air bubbles, you can also smell the coolant, if it emails like exhaust fumes, it’s almost certainly a head gasket.
How many miles has the van done?
VW did an analysis with a pressure test and said it was an EGR failure and charged £100 for the diagnosis. Might I have any come back on the VW diagnosis?
Van has done 48k miles.
If you didn't have to pay does that mean you have some sort of warranty? If so I'd be straight back to VW or whoever.
I have third part warranty via Warranty Direct.
Pressed combined metallic / plastic components are a bag of shite, designed and built to be as cheap as possible regardless of reliability.
Agreed, if under a warranty take it back for further testing.
