MK 7.5 R wagon, expansion tank coolant level and it was down to the lower level.

[7ur7le]

yeh, so, the rubber coolant hoses have hose clamps. the hose clamps are at a constant tension and if they are not placed correctly or the hose isnt connected properly it will have a slight leak.

no need to pretend youre some rocket scientist or brain surgeon

[h100vw]

Not being a rocket scientist. There's no hose clamps to tighten. They are either good or not.
I have fitted enough waterpumps on ea888 motors to know what I'm talking about.
What's far more likely if not the pump itself, is a failed plastic coupling.

[7ur7le]

Not being a rocket scientist. There's no hose clamps to tighten. They are either good or not.
I have fitted enough waterpumps on ea888 motors to know what I'm talking about.
What's far more likely if not the pump itself, is a failed plastic coupling.

good on you. for you to even say "theres no hose clamps to tighten" shows ur just here to flex ur w4ng.

there are in fact hose clamps to "tighten" and keep in the right position. they keep the hoses in tact and from leaking.. if a hose clamp is out of position or the hose isnt properly seated it can leak too under pressure. over a week or two of driving and leaking obviously causes you to lose fluid.

but keep arguing

[h100vw]

If we are being accurate in our statements, which is what I am doing.
If there's a leak due to a constant tension clamp. You cannot tighten it. You take it off and replace for a conventional worm drive hose clamp.

[7ur7le]

If we are being accurate in our statements, which is what I am doing.
If there's a leak due to a constant tension clamp. You cannot tighten it. You take it off and replace for a conventional worm drive hose clamp.

im not talking about a faulty hose clamp. im talking about a poorly placed hose clamp and/or refitted hose.. which can happen.. and a tension clamp can be tightened.. its tightness just cannot be adjusted. i ts either opened with pliers or closed / tightened.. if its tightened while incorrectly placed it will leak because its not properly sealing the hose.. very simple..

[bhavitra techsoiutions bd]

very nice post.....

[bhavitratech]

very nice ...

[spellbound]

I have no idea where the coolant goes on some engines. My son's Polo GTi (6c) had the pump and thermostat housing replaced under goodwill by VW and the selling (VW) dealer. Since then, there are no visible signs of leakage, the (awesome) VW specialist we see for that car cannot find any evidence of leakage, and somehow every 5 to 7 thousand kays, the reservoir takes up to a couple hundred ml's of top-up. It's like it disappears into an alternate universe.

My T-Roc (140TSI) had a drink of coolant about 6 months ago. No idea where it went. The level was perfectly stable before that, and it's been that way ever since.

My wife's car (Audi A4, 45TFSI) also seems to take a sip of coolant - about once every 15k km it needs maybe 100ml of top-up. Just enough that you notice, not enough to be a real issue.

Previous vehicles we've owned with the EA888 motor have not lost a drop of coolant.

I would bring it to the attention of VW if you are worried about it. The alternative is to track it for a while - see how long it takes for X amount of coolant to be consumed. Go from there.

I would be surprised if VW replaced the pump or thermostat housing without there being obvious signs of leakage - eg, a salty residue, or that coolant-coloured powdery residue that Lucas mentioned. Sometimes you need to look REALLY closely to see it - need the car up on a hoist, lower covers removed, and LOTS of light.

I have had three E888 and never ever touched the coolant .
The lady of the house had a sudden drop in her A200 just days out from service , left it with them to check , oh sir its the water pump ,see the pics , thats a $2500 job , lets leave it and i will check , 16 months on no movement , weird .