MK5 Golf GTI

All Things Mk5 => Mk5 General Area => Topic started by: 80walk on November 05, 2017, 04:01:30 pm

Title: Temperature gauge again ...
Post by: 80walk on November 05, 2017, 04:01:30 pm
Appreciate this topic has already been covered before however after changing rear abs sensor and hub ive notice the car doesn't get and stay at 90deg c ... drops off when in main roads / motorway . this happened in my mk4 and simple thermostat fixed the job however understand there is 2 temp sensors in the mk5.
Is there an actual thermostat in the mk5 or is it an electrically controlled until for regulating temperature... ?

I'm guessing the sensor which is linked to the gauge in the dash is ok and it's the main temp sender in the main housing (under the alternator) as my fuel economy has dropped as well at moment ...

What's the cost of these temp sensors / units and likely install time ?

Cars standard on 85k / 2008
Title: Re: Temperature gauge again ...
Post by: doylebros on November 05, 2017, 06:02:28 pm
This link will answer your questions as it shows the how to's for a variety of job

http://www.pelicanparts.com/techarticles/Volkswagen_Golf_GTI_Mk_V/VW_GTI_Mark_V_Tech.htm

The part is less than £40 - buy genuine cause it's awkward to do and three hours if all goes well and you have a M5 tripple square for two of the fixings.
Title: Re: Temperature gauge again ...
Post by: Leroy on November 06, 2017, 07:39:15 am
Minesbooked into get this done on Wednesday, looks like a bell of a job.
Title: Re: Temperature gauge again ...
Post by: 80walk on November 06, 2017, 10:44:37 am
Is it the same temp sender for both the main coolant unit and sensor associated with gauge on dash ?
Title: Re: Temperature gauge again ...
Post by: Dave_d on November 06, 2017, 10:08:49 pm
Just had main and in-line done on my gti, my car wasn’t getting to even 70 degrees on a 11 mile drivetrain work. Cars up to 90 in around 2 miles now. Cost me £206 for both genuine parts, new fluid and labour
Title: Re: Temperature gauge again ...
Post by: 80walk on November 07, 2017, 02:13:44 pm
... Are both the sensors the same part ?
Title: Re: Temperature gauge again ...
Post by: Leroy on November 07, 2017, 10:26:16 pm
£200!!! Jesus Christ, had new tyres on today so I’m up to £1500 I’ve spent the first month of owning it before I even start adding up the shiny bits!
Title: Re: Temperature gauge again ...
Post by: 80walk on December 06, 2017, 11:27:38 am
which part should i be looking at ?

https://www.eurocarparts.com/car-thermostat (https://www.eurocarparts.com/car-thermostat)
Title: Re: Temperature gauge again ...
Post by: pudding on December 06, 2017, 01:21:22 pm
£200!!! Jesus Christ, had new tyres on today so I’m up to £1500 I’ve spent the first month of owning it before I even start adding up the shiny bits!

Genuine coolant temp sensor is 40 quid on it's own.  Genuine main thermostat is around £35 iirc, plus the second stat, sundries, coolant etc.....and the utter ball ache of getting to the main thermostat.......£200 isn't a great deal.