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Overheating 1.8t Anni


gorman77
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Have the usual problem of "Stop check coolant" when i start up, but it took a sinister twist last night. Driving at about 60 when the panel displayed STOP again and sure enough the temp gauge was off the scale.

Lifted the bonnet and could hear water in the top pipe swoshing about. Water bottle also looked nearly full.

No signs of leak though. Waited for it to cool dowm, started the engine and everything was fine, drove a little and the temp rose quickly again, but this time i came off the accelerator and sure enough the temp reduced to normal quickly. Limped home like this keeping the temp around normal.

Checked the car this morning and the water level is as it should be no leaks.

I have heard about water pump and thermostat problems on this car do you think it sounds like one of them.

Mileage 18,000. Just out of warranty by 3 weeks.

All help appreciated.

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Sounds like it could be an air lock.

If you say that the fluid level hasn't decreased,even though the car has basically been overheating.

Start the car with the radiator/reservoir cap off and put the heater setting on hot.

Then let the car run with the heater fan on maximum.

This should hopefully allow the water to get past the airlock and distribute through the system correctly.

Leave it running and make sure the fan cuts in and out a few times and that the temperature guage responds in relation to the fan i.e never goes past 90 odd degrees.

I'm not sure whether VW's have bleed nipples in their cooling systems like French cars do,but if they do(someone will be along shortly to clarify this point)then you may need to loosen one of these also to let the air out!

Good luck and welcome to TSN! 169144-ok.gif

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It's going to the Stealers in the morning. I think your right about the water pump, i tried the pressure cap test with no luck. I will certainly be demanding goodwill or it will get done at a specialist for half the price.

If it is the pump should they flush the system to get any plastic out?

Thanks for all the advice guys.

Will keep you posted when i get back from the stealers.

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A mate of mine has had 2 water pumps replaced on his 1.8T in less than a year and the car has about the same milage as yours. First one the propellor dropped off the second was near to seizing. Theres suppose to be a modified pump now available for the dealers to fit and touch wood this 'new one' seems ok now. I would agree with the guys above its 99.9999% the water pump as its a well known problem on the 1.8T engine.

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You guys are spot on. As was a friend of mine.

The stealer declared it to be the water pump, but said VW would not offer any goodwill. I got on to Customer care and they agreed to pay 70% towards the water pump and new timing belt and tensioner (might as well change it).

They will also pay for a new water bottle to rectify the Temp sensor problem under the original warranty work.

I was not not happy that i had to pay 30%, but i am now thinking £100 is not bad for a new timing belt and tensioner.

Also if they paid 100% then the stealer states that the parts and labour are not guaranteed for 2 years. Not sure about this!

Anyway i will hopefully get the car back on saturday and we shall see how it goes.

Do you have a part number for this updated pump so i can check it out with them?

Thanks for all the advice guys.

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Got the car back. They changed the pump, timing belt and tensioner.

Also they replaced the water bottle with for now has cured the coolent level fault.

All seems well.

Although they seem to have broken a piece of trim around the service port..Just can't get quality lately.

Cost me £120 in the end.

Enjoying the car once more.

Thanks for the help people.

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