CiTi Golf Thermostat Issues

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Herschel
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CiTi Golf Thermostat Issues

Post by Herschel »

Hi
I replaced my 1.4i CiTi Golf's thermostat @ 120k kms.@ 160K my temp started dropping again when driving,but gets to normal temp when i stand @ a robot for a while.
I again replaced the thermostat about 2 weeks back with one that i bought from Goldwagen.I put the new thermostat in & the car's temp still stays @ a quarter when driving & gets to normal temp when standing @ a robot etc for a while.

Could the new thermostat be an out of box faulty unit or could it be the temp sensor causing this problem?
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Re: CiTi Golf Thermostat Issues

Post by Torker »

Herschel wrote:Hi
I replaced my 1.4i CiTi Golf's thermostat @ 120k kms.@ 160K my temp started dropping again when driving,but gets to normal temp when i stand @ a robot for a while.
I again replaced the thermostat about 2 weeks back with one that i bought from Goldwagen.I put the new thermostat in & the car's temp still stays @ a quarter when driving & gets to normal temp when standing @ a robot etc for a while.

Could the new thermostat be an out of box faulty unit or could it be the temp sensor causing this problem?
Some things are better replaced with OEM, thermostat and expansion bottle cap included. I've been stuffed around endlessly by non-franchised parts, sometimes the difference in price is as little as R10, I pay the premium for something that is designed to work as it should.
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Re: CiTi Golf Thermostat Issues

Post by Psycho8v »

Herschel wrote:Could the new thermostat be an out of box faulty unit or could it be the temp sensor causing this problem?
It is more than likely your temperature sensor. I bought a thermostat from GW, and had no issues whatsoever with it. You should be able to check it. If your temp gauge shows 1/4, after a decent drive, feel the two pipes of your radiator. If the one is a lot cooler than the other one, it is most likely thermostat. (don't burn yourself feeling the pipes) But my money is on temperature sensor. They're under R100 at GW Delarey, and they're decent quality. Been running mine for over a year now without issues. (Touch wood)
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Re: CiTi Golf Thermostat Issues

Post by Naku786 »

Its R 545.00 incl VAT from VW, O-ring is R 11.00
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Re: CiTi Golf Thermostat Issues

Post by Pieta »

I've got the exact same issue, replaced my thermostat on the 1.4 with a Meyle part, (87 degree) and the temperature gauge still stays on between quarter and half, as far as I know it should read half on the citi golfs? Fan still comes on as per normal but gauge never reaches half. Next thing to replace is the sensor.
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Re: CiTi Golf Thermostat Issues

Post by Naku786 »

Pieta wrote:I've got the exact same issue, replaced my thermostat on the 1.4 with a Meyle part, (87 degree) and the temperature gauge still stays on between quarter and half, as far as I know it should read half on the citi golfs? Fan still comes on as per normal but gauge never reaches half. Next thing to replace is the sensor.
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Re: CiTi Golf Thermostat Issues

Post by Viper »

Please be careful. We (GW) list about 6 different thermostats for the mk1/2/3 and polo range. The correct part number for your car is A034- with the correct heat range. You can pm the part number they supplied you and I will check what it is.
How old is the water pump? If it's corroded where the thermostat seats , it is possible that the water bypass it.

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Re: CiTi Golf Thermostat Issues

Post by Herschel »

Viper wrote:Please be careful. We (GW) list about 6 different thermostats for the mk1/2/3 and polo range. The correct part number for your car is A034- with the correct heat range. You can pm the part number they supplied you and I will check what it is.
How old is the water pump? If it's corroded where the thermostat seats , it is possible that the water bypass it.

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Ok thanks for the info.

I was supplied the Wahler thermostat.The part number on the box is 4256.80.Please advise if this is the correct thermostat.

The water pump was replaced @ 120 000kms/4 months ago when the major service was done.
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Re: CiTi Golf Thermostat Issues

Post by Viper »

There should be a (A) number on the box or invoice

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Re: CiTi Golf Thermostat Issues

Post by Viper »

Btw Wahler is a oe brand . When you buy from vw, that is the same brand you would find in the box. So there is nothing wrong with the brand quality. But it is possible that a new part is faulty even if it is OE.

Do you run Anti freeze?

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Re: CiTi Golf Thermostat Issues

Post by Herschel »

This is the label on the box.
Yes i am running anti-freeze in the car.

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Re: CiTi Golf Thermostat Issues

Post by Viper »

The number given translate to a 80 deg thermostat. I will need to double check this tomorrow morning. This can be your problem

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Re: CiTi Golf Thermostat Issues

Post by Herschel »

Ok cool.

Thanks for the help.
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Re: CiTi Golf Thermostat Issues

Post by Little D »

I had similar issues in winter. I changed thermo and than noisy water pump and made sure I run anti freeze and sorted my issue
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Re: CiTi Golf Thermostat Issues

Post by Viper »

Just confirmed on Wahler website that that is a cold 80deg thermostat. That is to cold!

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Re: CiTi Golf Thermostat Issues

Post by Herschel »

What should the thermostat temp for the 1.4i Golf be,so i can sort this out tomorrow?
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Re: CiTi Golf Thermostat Issues

Post by Viper »

if I remember correctly 89deg. Will check tomorrow.

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Re: CiTi Golf Thermostat Issues

Post by graham savage »

You should have the 87*C thermostat.

If you sit in traffic your gauge should go to normal before the fan comes on at 92*C otherwise you have a cold fan switch too... Or of course your temp sensor is wonky
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Re: CiTi Golf Thermostat Issues

Post by Herschel »

The fan comes on as per normal when the guage is half as it should be when it's standing,so that is working fine.I just think i was supplied the incorrect temp thermostat.
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Re: CiTi Golf Thermostat Issues

Post by Viper »

Herschel wrote:The fan comes on as per normal when the guage is half as it should be when it's standing,so that is working fine.I just think i was supplied the incorrect temp thermostat.
Jip your thermostat is to cold.

part number A3110 80deg Wahler R110.00
part number A034- 87deg wahler R121.00

7deg difference is about a 1/4 gauge.

Let me know if there is anything else you want to know regarding this

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Re: CiTi Golf Thermostat Issues

Post by HendrikCTI »

Interesting when reading this info how different manufacturers have different operating temp.
Nissans thermostats open in the early 80C.
I put in a thermo fan on the datsun and found a temp sensor from a pulsar.
Switch will turn on fans at 88 and off again at 84/85.

Just another note. When I looked through the catalogue I saw Pergeot is one of the manufacturers with the coldest engines.
Was something in the 70s range that the fan switched on and off.
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Re: CiTi Golf Thermostat Issues

Post by Herschel »

Thanks again for all your help Viper.

I think this is a common issue with guys getting the wrong temp thermostat supplied to them.
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Post by BrandonBester »

Hi Gents

Please help me I got a Jetta 3 CSL carb my heat gauge go's up to half and stays there where I am on highway or city driven fan kicks in and out if in traffic.

My question is it normal for the heat gauge to stay at half once temperature is reached as I was told to remove my thermostat then it will run cooler is it advisable to drive without thermostat

Please help
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Re: CiTi Golf Thermostat Issues

Post by panic-mechanic »

Half is where it should sit and stay. You cannot remove a thermostat in those engines as they will then overheat. Anybody that advises you to do that is an idiot and you should not follow any advise given by him again. There are many cars where you can remove a thermostat but that vw is not one of them. Anyway you want engines to run fairly hot - it is healthier for them than running too cold. Water formed by condensation evaporates from the oil when it runs close to 100 degress where it does not if it runs too cold - thus causing sludge and acids.
Also there is more wear on cold engines and they are heavier on fuel.
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Re: CiTi Golf Thermostat Issues

Post by BrandonBester »

Thanks Bro

Just one more thing so if my top pipe and bottom pipe heats up and fan kicks in at half and stays there its 100%


Where can I buy the Water temperature sensor the one that sits in the plastic flange with yellow ring on it ?
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