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Old 1 Week Ago   #1
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1.4 T-Jet thermostat replace

Hi guys!

I would like to change the thermostat in my t-jet. Is there any difficulty with it, and anything to pay more attention? And is that enough if I use the seal gasket what I have with my new thermostat, or should I add some more seal or glue to it to seal it perfectly?
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Old 1 Week Ago   #2
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Re: 1.4 T-Jet thermostat replace

Do you have coolant temperature issue ? You'll probably need to use new pipe clamps, eventhough if you remove them carefully you can re-use the original ones. Beside that, the new gasket doesn't need any additional sealant, just make sure the surfaces are free of old seal residue (clean with wirebrush) and you shouldn't get any leak …

BRs, Bernie

If someone here helped You fix -or better, understand- your issue, hit the thanks icon @ bottom right corner, it's free and makes us feel helpy ;-)
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Old 1 Week Ago   #3
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Re: 1.4 T-Jet thermostat replace

Yes, I have coolant temperature issue, that the temp never reaches the middle. In summer itís almost ok, but when the weather is colder, the coolant temp is lower. That big black metal pipe near up the thermostat could be removed to get larger place for the repairing?
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Old 1 Week Ago   #4
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Re: 1.4 T-Jet thermostat replace

You are reffering to the intake pipe, yes you can remove it... you might have to replace some of the "one-time use" clamps.
I suggest, first checking all the hoses you plan to take off, measure the diameter and buy the appropriate hose clamps.

It's not a difficult job.
You could also remove the battery to get more space.
You don't need to drain the cooling system... just about 1-2 liters.
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Old 1 Week Ago   #5
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Re: 1.4 T-Jet thermostat replace

Thanks a lot! Than I will get the clamps first, and after it Iím gonna do the job!
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Old 1 Week Ago   #6
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Re: 1.4 T-Jet thermostat replace

Good advice from Aurick as usual !
BTW your description matches exactly the thermostat stuck (partly) open symptoms …

BRs, Bernie
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Old 6 Days Ago   #7
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Re: 1.4 T-Jet thermostat replace

Personally I'd use some rtv to seal it just to be sure.👍
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Old 5 Days Ago   #8
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Re: 1.4 T-Jet thermostat replace

Don't use any rtv. New thermostat, new oring - done.
Don't re-use the old clamps - buy new ones with the classic screw.
Try not to break the plastic quick connector (return line)
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Old 5 Days Ago   #9
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Re: 1.4 T-Jet thermostat replace

I got an aftermarket stat that was all metal, much sturdier. Mine was leaking as the plastic pipe cracked.

I didn't bother with gasket just rtv, but up to you. 👍
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Old 4 Days Ago   #10
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Re: 1.4 T-Jet thermostat replace

Thank you guys! Today Iím gonna buy the clamps, and also the seals for the tubes (I saw it in ePer, that there are 2). Is there any ďair-valveĒ which I should open after the replacement, to take out the air from the system? My old Bravo had 2 valves for it.
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Old 3 Days Ago   #11
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Re: 1.4 T-Jet thermostat replace

There's one on the radiator,close to the top on the RH of the car.
13mm if i'm not mistaken.
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