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A4 (B5 Platform) Discussion Discussion forum for the B5 Audi A4 produced from 1995-2001 B5 FAQ

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Old 07-09-2003, 12:30 PM   #1
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Default How hard to replace a thermostat to A4?

Can someone tell me how hard to replace the
thermostat to A4?
Seems that anything you do to the A4 is always
hard to access.

My car overheated momentarily last night and
I immediately turned it off. After 15 minutes,
I tried it and I get home without overheating.
I suspect the thermostat got stuck....what do you think?

Thanks
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Old 07-09-2003, 12:43 PM   #2
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Default Follow the lower radiator hose from the radiator to the block...

...it's right about there, IIRC. Good luck

Andy
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Old 07-09-2003, 12:50 PM   #3
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Default Re: Follow the lower radiator hose from the radiator to the block...

Well, normally most car has the thermostat at the
top hose, tellin me A4 1.8T located on the block
leading from lower hose?

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Old 07-09-2003, 12:55 PM   #4
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Default It's definitely not at the top hose...

...I can tell you that much. I've not replaced one myself, but IIRC from looking at the Bentley once, you remove the bottom hose and there it is. Try a search of the archives, you'll probably turn up something more detailed.

Andy
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Old 07-09-2003, 12:56 PM   #5
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Default Here's a very exploded view...

;-)

It's right under the waterpump in my pics...

You can get to it by removing two 10mm hex screws IIRC.



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Old 07-09-2003, 01:00 PM   #6
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Default Really? Woohoo, I changed something that you haven't touched yet. :-p

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Old 07-09-2003, 01:04 PM   #7
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Default LOL....was I right though?

Remove the bottom hose, and then those two screws? It's on the list of things to do.....but I've been lazy lately...

Andy
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Old 07-09-2003, 01:09 PM   #8
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Default Yup. The lower hose splits, but like you said, follow it to the block and the T-stat is in there.

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Old 07-09-2003, 01:25 PM   #9
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Default don't you need to flush the system in order to change the Tstat?

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Old 07-09-2003, 01:28 PM   #10
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Default Yes. You will need to replace the coolant.

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Old 07-09-2003, 01:28 PM
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2000, 2001, 2002, 2003, 20055, a4, audi, b5, change, difficult, flush, hard, repair, replace, replacing, thermostat


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