when you had the thermostat out did you feel the pump to see if it was fooked ?? my money still on water pump.
like ive said i had pressure build up and other stuff and at the end of the day it all come down to the pump.
when mine went tits up both temp gauge and temp on climate (setting 51) both said 90. just keep on eye on it mate. but if i was you i think i would get the belt done sooner than later why leave it a few 100's miles and risk causing more damage ?
My guess it's Ye Olde VAG water pump issue.
I had one go on my last Passat (PD130). While driving at lower speeds, everything was fine. You could see water circulating. But under prolonged engine load, coolant temp would shoot up, boil and piss out of the expansion cap over the bottle.
The plastic impeller had become loose on the water pump shaft, not completely loose though - it still turned enough to circulate a bit of water, but not enough to remove the heat generated under load.
And this was a fairly new pump, fitted at 120k miles during a cambelt change, as a precaution
I had one go on my last Passat (PD130). While driving at lower speeds, everything was fine. You could see water circulating. But under prolonged engine load, coolant temp would shoot up, boil and piss out of the expansion cap over the bottle.
The plastic impeller had become loose on the water pump shaft, not completely loose though - it still turned enough to circulate a bit of water, but not enough to remove the heat generated under load.
And this was a fairly new pump, fitted at 120k miles during a cambelt change, as a precaution
Stating the obvious but you do not want to cook the block, an early belt and pump sounds to be in order.
When was the last time the belt/pump changed?
I assume it'll be due in about 13k anyhow.
When was the last time the belt/pump changed?
I assume it'll be due in about 13k anyhow.
when i got my car the service book said cambelt done only 7k before i got it but the water pump was not replaced... does the paper work say water pump ? or just cambelt kit ?
mate if the stealers have said water pump and most of us have said the same then wht dont you get the pump replaced. if it dont say water pump on invoice when cambelt done then get it replaced before you do major damage.....the more you drive it the more damage you could do. just bite the bullet and get it done.......................
have a read mate.
http://www.seatcupra.net/forums/showthread.php?t=233967
if you was to have the head, pump and cambelt done then you would be looking at over £1300..... i thought my HG had gone but it was only my pump.
http://www.seatcupra.net/forums/showthread.php?t=233967
if you was to have the head, pump and cambelt done then you would be looking at over £1300..... i thought my HG had gone but it was only my pump.
I still think...
A failed water pump wouldn't pump coolant and a stream of bubbles round the system. The bubbles have to be coming from somewhere in the system, and I can't put my finger on anywhere else that it could be occurring.
Mine did...the impeller had just enough grip on the shaft to turn - it was slipping but still turned. Enough to pump water round at idle and keep the temps under control under light load. Constant load for a few minutes though, and it couldn't cope - resulting in boiling coolant pissing out of the header tank.
In other cases, I understand bits of the impeller break off, which would lead to a similarly reduced cooling capability.
Personally, if my car had already covered 47k on the current cambelt, I'd get the belt & pump done now, and see if that cures it.
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Selective quoting there mate. What I said was
"A failed water pump wouldn't pump coolant and a stream of bubbles round the system."
Edit: The problem is the stream of bubbles in the coolant. That's what the failed water pump idea fails to explain.
I've fixed my quote
If the impellor was broken, with sharp edges, it could be cavitating and causing bubbles...
If the impellor was broken, with sharp edges, it could be cavitating and causing bubbles...
Possible. Only one way to be sure really and that's take the bull by the horns.
Tell you what, I'll make a bet that I'm right about the head gasket and I'll be happy to lose it. You take a bet on the water pump and I hope you're correct. That would be the cheapest option.
Tell you what, I'll make a bet that I'm right about the head gasket and I'll be happy to lose it. You take a bet on the water pump and I hope you're correct. That would be the cheapest option.
And whatever the cause, the sooner the better before more terminal damage is caused.Tell you what, I'll make a bet that I'm right about the head gasket and I'll be happy to lose it. You take a bet on the water pump and I hope you're correct. That would be the cheapest option.
How about this scenario: the water pump failed, causing a serious overheat, which then caused the head to warp and subsequent leakage through the head gasket
Should the head be ok seeing as the temp has never gone above 90 even on the motorway. I'm just experiencing loss of coolant on the m/way and pressuring up of the system.
Water pump seems ok, i see it pumping the coolant round. But really if i'm going to get the headgasket done then i'll be waning the belt and pump done to save on having to get it done again.
Knowing my luck though, i'll still have the problem after lol
Water pump seems ok, i see it pumping the coolant round. But really if i'm going to get the headgasket done then i'll be waning the belt and pump done to save on having to get it done again.
Knowing my luck though, i'll still have the problem after lol
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