Thermostat help

[adam cupra 20vt]

I have a new thermostat that I need to fit, from looking at the car its behind the alternator inside the black casing?

Do I need to remove the alternator or can I do it without?

Before people say the thermostat isn't faulty and its the temperature sender...I have already replaced the sensor and it didnt fix it.

Car doesn't get that hot and when it does get up to 90 it drops back to 70 then does what it wants between 70-90!

It doesn't overheat, never goes above 90 so I ruled out water pump and now temp sender, all thats left is the thermostat or a dodgy gauge?

 

[LEE69]

No can leave it in situ.
Follow the guide i put up

http://www.seatcupra.net/forums/showthread.php?t=210977&highlight=thermostat

 

[adam cupra 20vt]

Nice one Lee, did you remove the orange dipstick holder or leave that in place to?

 

[LEE69]

Left it in place.

 

[adam cupra 20vt]

Good cause they always break don't they

I will give it a go this week hopefully, got me G12 coolant and thermostat sitting here now

 

[Shaunyboy]

The job its self is 2 bolts, but its geting acsess to there thats the problem, alternator doesnt really need to come off as the bracket is cut out to accomodate the flange.

 

[adam cupra 20vt]

Cheers, hopefully if I remove the metal plate infront of the manifold I'll be able to do it

 

[GlanzaV]

P.S. I've had 3 different cars all of which the thermostat had to be changed and they all exhibited the prob you have - Getting up to 90deg and dropping to about 70deg, or never getting up to 90deg.

I also changed the coolant temp sensor as a first pass (on my mk3 Cupra) and it never worked either, was defo the Thermostat.

 

[adam cupra 20vt]

Cheers, fingers crossed it sorts it out

 

[LEE69]

Elbow joint and extension bars and you'll have it sorted.

 

[adam cupra 20vt]

Fitted tonight.....what a PITA!

Touch wood its sorted itself out


I put the genuine G12 coolant in, is this surposed to be diluted as I topped it up with neat G12......I thought it was ready mixed but my mate thinks its neat

 

[Shaunyboy]

Fitted tonight.....what a PITA!

Touch wood its sorted itself out


I put the genuine G12 coolant in, is this surposed to be diluted as I topped it up with neat G12......I thought it was ready mixed but my mate thinks its neat

Concentrate needs to me dialuted usually about 50/50. 2 litres in an empty system- I dont get why everyone is anal about Genuine lol, comma xstream red is just the same to vw spec.

 

[adam cupra 20vt]

Oh well I topped it up with neat G12....was trade price anyway so probably cheaper than the Comma stuff

 

[Shaunyboy]

How much?

 

[adam cupra 20vt]

How much?

It was about £4.25 + VAT for 1.5ltrs and that included delivery on the van.

I see the Comma stuff is the same price but for only 1ltr and I'd have to drive and get some.

I'd always rather use genuine stuff if I can.

 

[LEE69]

Temp ok now mate?

 

[adam cupra 20vt]

After running it up last night it all seemed ok but I think if I would have run it that long with the old one it would also have got to temperature as it was only sticking.

I've got dentist this afternoon so can test it from cold, I'm really hoping its going to be ok.......fingers are well and truely crossed!

Whats it normally take to get to 90 in this weather? about 4-5 miles of normal driving would you say?

 

[LEE69]

Possibly a touch longer i'd say.

 

[adam cupra 20vt]

Ok mate I'll see what happens later......I'm more worried about it not being fixed then I am about having treatment at the dentist

 

[LEE69]

TBH there isn't anything left to change now