It didn't go above 90, the fans haven't come on once, and it hasn't happened whilst driving, it's always when on idle in traffic.
It HAS to be down to the fact the fans aren't coming on, even at 100-110 degrees.
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Overheating (Update Post 35, please help!)
- Thread starter bildo
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It didn't go above 90, the fans haven't come on once, and it hasn't happened whilst driving, it's always when on idle in traffic.
It HAS to be down to the fact the fans aren't coming on, even at 100-110 degrees.
Nice to see someone is reading my posts!
Since you both agree, I assume I'm going to have to go down the fan route? I've sent AMD a message so hopefully I'll be taking it down there for them to take a look at.
Save your money and fix it yourself
http://website.lineone.net/~alan.james.lorely/fan mod/Repair.html
http://website.lineone.net/~alan.james.lorely/fan mod/Repair.html
I'm not knowledgeable with that sort of thing whatsoever, I don't even have the first idea what that website just told me sadly.
Since I'm currently working 12 hours a day I'm not really left with much spare time and since I use the car for work I could do with it just being fixed. I'll check how much AMD will charge for a fix, I'm hardly made of money so I might have to look at alternatives if it's ridiculous.
I assume this is a bypass to having to replace the fans? How much would it cost to replace them?
Does the radiator even get hot? If it doesn't, the thermostat it stuck as people have said. This will stop the fans coming on, as the switch measures the temperature in the radiator, and as the radiator is cold, the fans don't turn on.
However,
Something is suspicious about the fans not running with the aircon on? Do they not run at all, or do they keep turning on and off? They are supposed to have 2 speeds. When you turn the ac on, they should come on at the slow speed. If the slow speed doesn't work however (Blown resistors in fan), the high speed mode will turn on and off instead.
If the fans don't do anything at all, it could either be the fan controller which is goosed, or the fans themselves are dead, but I can't imagine both going at the same time. Try applying 12v directly to the fan and see if they run, and make sure you can turn them by hand to be sure they're not seized.
Back to the thermostat idea though - Does the engine overheat when the car is moving? If the thermostat was stuck, I would expect the engine to overheat even when moving, as the radiator wouldn't be cooling down the coolant at all.
However,
Something is suspicious about the fans not running with the aircon on? Do they not run at all, or do they keep turning on and off? They are supposed to have 2 speeds. When you turn the ac on, they should come on at the slow speed. If the slow speed doesn't work however (Blown resistors in fan), the high speed mode will turn on and off instead.
If the fans don't do anything at all, it could either be the fan controller which is goosed, or the fans themselves are dead, but I can't imagine both going at the same time. Try applying 12v directly to the fan and see if they run, and make sure you can turn them by hand to be sure they're not seized.
Back to the thermostat idea though - Does the engine overheat when the car is moving? If the thermostat was stuck, I would expect the engine to overheat even when moving, as the radiator wouldn't be cooling down the coolant at all.
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The first time when I was stuck in traffic it stayed at 90 deg for a few minutes, then it rose and rose until the warning light came on, I immediately pulled over when I heard it, opened the bonnet and waited a fair while for it to cool down.
The next day I intentionally sat on my drive and again it was heading towards the 120 deg mark.
By hot do you mean is it as it should be or cold? Or are we just talking about hotter than it normally would be? If so I don't have any way of checking whether it is hotter than normal.
I have popped the bonnet about 10-15 times recently at the beginning/end and middle of journeys. I have not seen one of the fans moving at any time despite the aircon being on non-stop.
Where would I be applying the 12v to on the fan? I'm unsure as to where the connection points are for it.
I have attempted to turn both by hand with no issue, they turn freely.
When the car is moving air is coming into the engine and I have never seen it even begin to creep over 90 deg at any point while I'm anything but stationary.
Thanks for the ideas and suggestions guys, it's much appreciated.
Right, took it to the first garage, they basically looked at it, didn't have any idea and gave the car back to me. I then rang up a local VAG specialist and drove it to there, over about a 20 minute journey the temp didn't go above 60 degrees, so the issue has changed seemingly?! I can only assume something the first garage did changed the symptoms.
Now, I took it to the specialist and he's had it for a day, he called me in to talk about it just now. He's tried for a couple of hours to find solutions to no avail. He's now saying that he wants to look at where the wiring goes into the bottom of the fans/rad area to take that apart and see if anything can be done with the wiring in there. If that fails, he's going to order the two new fans.
Does anyone have any advice before he goes ahead and does this? Is it going to be a dead end going in there as he says he's never done it before but there's a chance something might need doing inside there.
Should I save wasting my money on labour and just fork out for the new fans? Are the fans from the Euro Car Part type companies any good or am I going to have to get them from Seat themselves?
Thanks guys.
Now, I took it to the specialist and he's had it for a day, he called me in to talk about it just now. He's tried for a couple of hours to find solutions to no avail. He's now saying that he wants to look at where the wiring goes into the bottom of the fans/rad area to take that apart and see if anything can be done with the wiring in there. If that fails, he's going to order the two new fans.
Does anyone have any advice before he goes ahead and does this? Is it going to be a dead end going in there as he says he's never done it before but there's a chance something might need doing inside there.
Should I save wasting my money on labour and just fork out for the new fans? Are the fans from the Euro Car Part type companies any good or am I going to have to get them from Seat themselves?
Thanks guys.
The not going above 60 says to me the stat is stuck open, or the CTS is faulty.
Doesn't explain the fans not working.
Doesn't explain the fans not working.
So do you think a new issue could've been created while they were trying to solve another one? Seems a bit coincidental!
I don't suppose you have any idea what is inside where the wires go at the bottom of the fans/rad do you? You seem to be quite clued up on overheating issues!
I don't suppose you have any idea what is inside where the wires go at the bottom of the fans/rad do you? You seem to be quite clued up on overheating issues!
Does seem coincidental, maybe they disturbed the wiring to the CTS?
No sorry never seen in the fan controller.
No sorry never seen in the fan controller.
Sorry to sound stupid, what is a CTS? Googled it and just got "Catholic Truth Society", I doubt that's it
Don't suppose you've heard of any issues being resolved from within there either? Trying to decide whether I should waste my money on about £90 labour trying to fix it when the fans are about £140 for both from Euro Car Parts.
Can I trust using those parts on it? Or am I just leaving myself liable for another problem a few months down the line?
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