Citi golf water temp sensor housing

Post Reply
User avatar
DUPZ 55
Cadet
Posts: 644
Registered for: 11 years 9 months
Car Make: VW
Car Model: Mk4 Jetta
Membership No: 1958
Location: JHB

Citi golf water temp sensor housing

Post by DUPZ 55 »

Howsit,

Forgive me for the topic title but I really don't know what this part is called..

Image

It's looking tired and after driving water sits on top of it which I know can't be right. The car is driving daily so it needs to be changed out.
Bradley du Preez
current
2012 Toyota fortuner 3.0 D4D auto 4x4 - RK peri peri + straight pipe
2009 Mercedes-Benz C180
ex :2002 Mk 4 Jetta - sold
ex : MK6 GTI 2012 - Stealth Tuned - sold
ex : Citi Rox 1.4i 2009 - Sold
ex : polo GTI 08 - sold
ex : citi 1.4i 07 - sold
User avatar
AlexTDi
Field Marshal
Posts: 11373
Registered for: 12 years 7 months
Car Make: VW
Car Model: '15 Polo GTI
Membership No: 1724
Location: Johannesburg

Re: Citi golf thermostat thing

Post by AlexTDi »

Looks like some sort of pressure release valve or is it spitting out the water temp sensor?
Alex
VWCSA Member No. 1724

Daily: '06 Land Rover Freelander TD4 HSE
Race Car: Polo Vivo GT

EX:
Daily:
'15 6C Polo GTI DSG
'06 1.9 TDI Sportline
'06 BMW 320D M-Sport
Weekend Toy: '84 Golf MK 1 GT
Race Car: Golf MK1 2 Door

https://www.facebook.com/AMRacing89
Torker
General
Posts: 9591
Registered for: 18 years
Car Make: VW
Car Model: Golf GT
Membership No: 1464
Location: Springs

Re: Citi golf thermostat thing

Post by Torker »

The front one is just a blank, the back one is your water temp sender...
Current rides:

VW Golf - 83 GT 2.1 16V 2-door with throttles
VW Golf - 78 LS 2.0 8V 4-door (2.1 ABF with throttles in progress)
VW Golf - '08 Citi Storm - 1.4 for now
Hyundai - 1.4 Getz (daily)
User avatar
AlexTDi
Field Marshal
Posts: 11373
Registered for: 12 years 7 months
Car Make: VW
Car Model: '15 Polo GTI
Membership No: 1724
Location: Johannesburg

Re: Citi golf thermostat thing

Post by AlexTDi »

Ah looks to be a secondary "port" to attach another temp sensor

Image

replace it with a single port housing
Alex
VWCSA Member No. 1724

Daily: '06 Land Rover Freelander TD4 HSE
Race Car: Polo Vivo GT

EX:
Daily:
'15 6C Polo GTI DSG
'06 1.9 TDI Sportline
'06 BMW 320D M-Sport
Weekend Toy: '84 Golf MK 1 GT
Race Car: Golf MK1 2 Door

https://www.facebook.com/AMRacing89
User avatar
amstel18
Lieutenant-Colonel
Posts: 4834
Registered for: 16 years 3 months
Car Make: VW
Car Model: Tiguan Allspace
Membership No: missing
Location: Brackenfell, Cape Town

Re: Citi golf thermostat thing

Post by amstel18 »

You get that blanks at goldwagen.

Cheap as chips. You need the oring and clip that goes with it.
Current:
2022 GWM P-Series LT 4x4
Ex:
2018 VW Tiguan Allspace
2013 Audi A3 Sportback 1.8 TFSI S-Tronic
2015 Pure White 1.2tsi Comfortline
2011 2L BiTdi ROK D/C Highline
2006 Seat Ibiza Cupra TDI
91 Caddy, ADY motor on mp9, wildcat 4-1 branch and 50mm Evolution s/s exhaust
96 1600 Chico (sold)
User avatar
DUPZ 55
Cadet
Posts: 644
Registered for: 11 years 9 months
Car Make: VW
Car Model: Mk4 Jetta
Membership No: 1958
Location: JHB

Re: Citi golf thermostat thing

Post by DUPZ 55 »

Thanks for the replies guys !

Ok will go to GW soon. Can this be a quick fix in means of not having to drain the coolant ? Just a matter of unclipping and swapping the blanks ?
Bradley du Preez
current
2012 Toyota fortuner 3.0 D4D auto 4x4 - RK peri peri + straight pipe
2009 Mercedes-Benz C180
ex :2002 Mk 4 Jetta - sold
ex : MK6 GTI 2012 - Stealth Tuned - sold
ex : Citi Rox 1.4i 2009 - Sold
ex : polo GTI 08 - sold
ex : citi 1.4i 07 - sold
User avatar
amstel18
Lieutenant-Colonel
Posts: 4834
Registered for: 16 years 3 months
Car Make: VW
Car Model: Tiguan Allspace
Membership No: missing
Location: Brackenfell, Cape Town

Re: Citi golf thermostat thing

Post by amstel18 »

DUPZ 55 wrote:Thanks for the replies guys !

Ok will go to GW soon. Can this be a quick fix in means of not having to drain the coolant ? Just a matter of unclipping and swapping the blanks ?
I've done it, just release the pressure in the system by unscrewing the cap, slowly!

It might leak some, just check that there's no airlock afterwards. The overflow into the bottle should have a steady stream while the car idles.
Current:
2022 GWM P-Series LT 4x4
Ex:
2018 VW Tiguan Allspace
2013 Audi A3 Sportback 1.8 TFSI S-Tronic
2015 Pure White 1.2tsi Comfortline
2011 2L BiTdi ROK D/C Highline
2006 Seat Ibiza Cupra TDI
91 Caddy, ADY motor on mp9, wildcat 4-1 branch and 50mm Evolution s/s exhaust
96 1600 Chico (sold)
User avatar
panic-mechanic
Panic's Place
Posts: 26715
Registered for: 21 years 7 months
Membership No: 79
Location: Benoni, putfontein.

Re: Citi golf thermostat thing

Post by panic-mechanic »

Wait for the car to cool off before doing this. So before starting it in the morning is the best.
I would just change the whole housing but that's just me.
Stephan van Tonder - Jhb - Putfontein Benoni
'05 Audi A6 3.0L TDI Avant
'09 Touareg 3l TDI
'13 VW CC 2l tdi (repair project)
'05 Touareg v10

Perfect Power dealer. I do dyno tuning.
User avatar
DUPZ 55
Cadet
Posts: 644
Registered for: 11 years 9 months
Car Make: VW
Car Model: Mk4 Jetta
Membership No: 1958
Location: JHB

Re: Citi golf thermostat thing

Post by DUPZ 55 »

amstel18 wrote:
DUPZ 55 wrote:Thanks for the replies guys !

Ok will go to GW soon. Can this be a quick fix in means of not having to drain the coolant ? Just a matter of unclipping and swapping the blanks ?
I've done it, just release the pressure in the system by unscrewing the cap, slowly!

It might leak some, just check that there's no airlock afterwards. The overflow into the bottle should have a steady stream while the car idles.
Thanks Amstel, that helps out a lot !

panic-mechanic wrote:Wait for the car to cool off before doing this. So before starting it in the morning is the best.
I would just change the whole housing but that's just me.
From looking at the pipes replacing the whole housing I would need drain some coolant. Also is there a gasket that would go with the new housing with some kind of sealant ?
Bradley du Preez
current
2012 Toyota fortuner 3.0 D4D auto 4x4 - RK peri peri + straight pipe
2009 Mercedes-Benz C180
ex :2002 Mk 4 Jetta - sold
ex : MK6 GTI 2012 - Stealth Tuned - sold
ex : Citi Rox 1.4i 2009 - Sold
ex : polo GTI 08 - sold
ex : citi 1.4i 07 - sold
UDC
Colonel
Posts: 5738
Registered for: 17 years 2 months
Membership No: 1041
Location: Durban

Re: Citi golf thermostat thing

Post by UDC »

housing comes with a O ring gasket, a smear of sealant will help as well but not necessary
VAG Fan
Lieutenant
Posts: 1440
Registered for: 8 years
Location: Pretoria

Re: Citi golf thermostat thing

Post by VAG Fan »

DuP,

Draining the whole thing is not complicated, but if you do, you have to get rid of trapped air afterwards. Here's my procedure.

With the engine cool, open the coolant reservoir and loosen the lowest of the three hoses on the water pump. Position a large collection pan under the pump, then slowly pull the hose off the pump and collect the coolant that flows out. When the flow stops, re-connect the hose to the water pump. Now exchange your temperature sensor housing/flange. I also pour my collected coolant through an old but clean towel, to filter out any dirt or rust.

[Edit, 17/01/2018: Now refill the coolant reservoir as full as it will go and close the cap.

correction - fill the reservoir about half-way, and keep the cap open.]

Start the engine on a fast idle (about 2000 rpm). At some point the thermostat will open and the coolant level will start dropping. [Edit: Switch off the engine or at least ]drop the speed to normal idle, [Edit:and open the reservoir carefully. If you stopped the engine, re-start on a normal idle.] Add the rest of your coolant to the reservoir as quickly as possible. If everything is in, close the cap and continue at fast idle until the radiator fan cuts in. You should be done now. Perhaps you need to add a bit of coolant the next morning, depending on how much you spilled at the pump.

Be careful when adding the last bit of coolant. Sometimes, when the engine becomes hot, the level will start to rise suddenly, if there is still an airlock, and you can lose a lot of coolant if you don't close the cap quickly. Keep the cap ready, and just close it and continue running the engine, until the level drops again. If necessary, add the last bit of coolant after cooling down the engine.

What you don't want to do, is heat up the engine with an empty reservoir and then suddenly pour lots of cold coolant in there. Try to keep replenishing it steadily as it gets drawn into the engine.

If you do the draining on a cold engine, the thermostat is closed, so you shouldn't need to worry about the heater circuit, because you only drain the front part of the cooling circuit. (Radiator and front pipes)
Last edited by VAG Fan on Wed Jan 17, 2018 9:26 am, edited 4 times in total.
Mark R.
- - - - - - - - - -
2004 VW Golf TDI, type 1J, AHF, 317k (2016-current) --- daily
1990 VW Fox, type 16, HM, 304k (2005-current) --- spare runaround
Previous:
1992 Audi 500 SE, type C4, AAR (2001-2020) --- nice while it lasted
1983 VW Golf GTS, type 17, FR (1992-2005) --- most fun car I've ever had
1978 Audi 100 GLS 5E, type 43, WC (1991-92) --- died in the side of a Rekord who cut me off
- - - - - - - - - -
Torker
General
Posts: 9591
Registered for: 18 years
Car Make: VW
Car Model: Golf GT
Membership No: 1464
Location: Springs

Re: Citi golf thermostat thing

Post by Torker »

What I did after my water temp sender bombed out in my VeloCiti, I bought 2 new senders and used the 2nd to block the extra hole. Reasoning was, if it bombed out again I can just move the plug to the 2nd sender.
Current rides:

VW Golf - 83 GT 2.1 16V 2-door with throttles
VW Golf - 78 LS 2.0 8V 4-door (2.1 ABF with throttles in progress)
VW Golf - '08 Citi Storm - 1.4 for now
Hyundai - 1.4 Getz (daily)
User avatar
DUPZ 55
Cadet
Posts: 644
Registered for: 11 years 9 months
Car Make: VW
Car Model: Mk4 Jetta
Membership No: 1958
Location: JHB

Re: Citi golf thermostat thing

Post by DUPZ 55 »

VAG Fan wrote:DuP,

Draining the whole thing is not complicated, but if you do, you have to get rid of trapped air afterwards. Here's my procedure.

With the engine cool, open the coolant reservoir and loosen the lowest of the three hoses on the water pump. Position a large collection pan under the pump, then slowly pull the hose off the pump and collect the coolant that flows out. When the flow stops, re-connect the hose to the water pump. Now exchange your temperature sensor housing/flange. I also pour my collected coolant through an old but clean towel, to filter out any dirt or rust.

Now refill the coolant reservoir as full as it will go and close the cap. Start the engine on a fast idle (about 2000 rpm). At some point the thermostat will open and the coolant level will start dropping. Switch off the engine or at least drop the speed to normal idle, and open the reservoir carefully. If you stopped the engine, re-start on a normal idle. Add the rest of your coolant to the reservoir as quickly as possible. If everything is in, close the cap and continue at fast idle until the radiator fan cuts in. You should be done now. Perhaps you need to add a bit of coolant the next morning, depending on how much you spilled at the pump.

Be careful when adding the last bit of coolant. Sometimes, when the engine becomes hot, the level will start to rise suddenly, if there is still an airlock, and you can lose a lot of coolant if you don't close the cap quickly. Keep the cap ready, and just close it and continue running the engine, until the level drops again. If necessary, add the last bit of coolant after cooling down the engine.

What you don't want to do, is heat up the engine with an empty reservoir and then suddenly pour lots of cold coolant in there. Try to keep replenishing it steadily as it gets drawn into the engine.

If you do the draining on a cold engine, the thermostat is closed, so you shouldn't need to worry about the heater circuit, because you only drain the front part of the cooling circuit. (Radiator and front pipes)
Thanks for your write up VAG Fan this is going to help out soon. I've seen water stains on the side of the radiator where a hose goes from the bottle to the top left of the radiator, the battle was actually empty and took a liter of water. I tried to take the hose off, undid the clamp but it's like it has been glued on. I don't want to break it off either so I just tightened it up but it's loose. I think I'll get the blank off for now and then next month new radiator and housing.
Bradley du Preez
current
2012 Toyota fortuner 3.0 D4D auto 4x4 - RK peri peri + straight pipe
2009 Mercedes-Benz C180
ex :2002 Mk 4 Jetta - sold
ex : MK6 GTI 2012 - Stealth Tuned - sold
ex : Citi Rox 1.4i 2009 - Sold
ex : polo GTI 08 - sold
ex : citi 1.4i 07 - sold
User avatar
DUPZ 55
Cadet
Posts: 644
Registered for: 11 years 9 months
Car Make: VW
Car Model: Mk4 Jetta
Membership No: 1958
Location: JHB

Re: Citi golf thermostat thing

Post by DUPZ 55 »

Torker wrote:What I did after my water temp sender bombed out in my VeloCiti, I bought 2 new senders and used the 2nd to block the extra hole. Reasoning was, if it bombed out again I can just move the plug to the 2nd sender.
Not a bad plan at all, I don't want to fix something and another things breaks :lol:
Bradley du Preez
current
2012 Toyota fortuner 3.0 D4D auto 4x4 - RK peri peri + straight pipe
2009 Mercedes-Benz C180
ex :2002 Mk 4 Jetta - sold
ex : MK6 GTI 2012 - Stealth Tuned - sold
ex : Citi Rox 1.4i 2009 - Sold
ex : polo GTI 08 - sold
ex : citi 1.4i 07 - sold
User avatar
DUPZ 55
Cadet
Posts: 644
Registered for: 11 years 9 months
Car Make: VW
Car Model: Mk4 Jetta
Membership No: 1958
Location: JHB

Re: Citi golf thermostat thing

Post by DUPZ 55 »

UDC wrote:housing comes with a O ring gasket, a smear of sealant will help as well but not necessary
Thanks UDC, will make sure it's in there
Bradley du Preez
current
2012 Toyota fortuner 3.0 D4D auto 4x4 - RK peri peri + straight pipe
2009 Mercedes-Benz C180
ex :2002 Mk 4 Jetta - sold
ex : MK6 GTI 2012 - Stealth Tuned - sold
ex : Citi Rox 1.4i 2009 - Sold
ex : polo GTI 08 - sold
ex : citi 1.4i 07 - sold
User avatar
DUPZ 55
Cadet
Posts: 644
Registered for: 11 years 9 months
Car Make: VW
Car Model: Mk4 Jetta
Membership No: 1958
Location: JHB

Re: Citi golf water temp sensor housing

Post by DUPZ 55 »

Just an update, I purchased the blank off from GW. Really easy job to change out the blank off.

Image

Image

Image

Image

Image

Image
Bradley du Preez
current
2012 Toyota fortuner 3.0 D4D auto 4x4 - RK peri peri + straight pipe
2009 Mercedes-Benz C180
ex :2002 Mk 4 Jetta - sold
ex : MK6 GTI 2012 - Stealth Tuned - sold
ex : Citi Rox 1.4i 2009 - Sold
ex : polo GTI 08 - sold
ex : citi 1.4i 07 - sold
Yellowbone

Re: Citi golf water temp sensor housing

Post by Yellowbone »

I have a 1.4i mp9 an I would like to know does the water housing get a gasket on or a sealer when connected to the head with the bolts Corz mine comes with the Oring for the housing but after tightening the bolts evenly, water still comes a tiny bit through ?
Thanks
User avatar
panic-mechanic
Panic's Place
Posts: 26715
Registered for: 21 years 7 months
Membership No: 79
Location: Benoni, putfontein.

Re: Citi golf water temp sensor housing

Post by panic-mechanic »

Always pull theno-ring out, then fill the slot with sealant thenplace seal back on there and bolt it on. Never leaks.
Stephan van Tonder - Jhb - Putfontein Benoni
'05 Audi A6 3.0L TDI Avant
'09 Touareg 3l TDI
'13 VW CC 2l tdi (repair project)
'05 Touareg v10

Perfect Power dealer. I do dyno tuning.
VAG Fan
Lieutenant
Posts: 1440
Registered for: 8 years
Location: Pretoria

Re: Citi golf water temp sensor housing

Post by VAG Fan »

Note to thread:
My bleeding procedure above was incorrect. I've edited it.
Mark R.
- - - - - - - - - -
2004 VW Golf TDI, type 1J, AHF, 317k (2016-current) --- daily
1990 VW Fox, type 16, HM, 304k (2005-current) --- spare runaround
Previous:
1992 Audi 500 SE, type C4, AAR (2001-2020) --- nice while it lasted
1983 VW Golf GTS, type 17, FR (1992-2005) --- most fun car I've ever had
1978 Audi 100 GLS 5E, type 43, WC (1991-92) --- died in the side of a Rekord who cut me off
- - - - - - - - - -
Swaerie
Enlisted
Posts: 12
Registered for: 6 years 5 months

Re: Citi golf water temp sensor housing

Post by Swaerie »

Hi,

Need some help please.
Water temp housing/fitting on front of cyl head dont seal at all. Overtightened bolt and damaged some thread.

The housing GW sold me would work on my old head but it seems the re worked head i got from 8v has a slight recess in the center.

This prevents the o ring to seal.

Do i have to ask for a different type vw front water housing?


Kind regards
Swaerie
Swaerie
Enlisted
Posts: 12
Registered for: 6 years 5 months

Re: Citi golf water temp sensor housing

Post by Swaerie »

My motor was supposed to purr last night bit i gues modifications arent simple sailing. Hehehehe
Swaerie
Enlisted
Posts: 12
Registered for: 6 years 5 months

Re: Citi golf water temp sensor housing

Post by Swaerie »

Apologies. I hi jacked the original thread. Sorry for that. Topic was relevant and i desperate.
SupaNova
Enlisted
Posts: 3
Registered for: 3 years 3 months

Re: Citi golf water temp sensor housing

Post by SupaNova »

hi,
can someone please help me with what are the 4 cables on the top of that sensor for???
UDC
Colonel
Posts: 5738
Registered for: 17 years 2 months
Membership No: 1041
Location: Durban

Re: Citi golf water temp sensor housing

Post by UDC »

SupaNova wrote: Mon Dec 07, 2020 12:03 pm hi,
can someone please help me with what are the 4 cables on the top of that sensor for???
2 go to the cluster and 2 go to the ECU
Post Reply