D3 3.0 tdi temp gauge / heaters issue

[Bushido]

Much appreciated, I tried an indi and our sponsors regarding this who all seemed to think I had dreamt up the existence of it...

Will report back

[Bushido]

And just a year later I finally got around to having it replaced!! lol
Fingers crossed it does seem to have done the trick but will know better when I run to work in the morning. Wish me luck!

[Bushido]

Job jobbed. Temp gauge sits at 90 and we have..... heat in the whole cabin!!!

Still have the garages I approached saying "cant have been that..."

[Johnmed]

Originally Posted by Bushido

And just a year later I finally got around to having it replaced!! lol
Fingers crossed it does seem to have done the trick but will know better when I run to work in the morning. Wish me luck!

Best not to rush into these things, eh!!

[Bushido]

And now we are going the exact same route with the latest 4.2 tdi!

See if I can do it in under a year this time though

[Bushido]

Well b#gger me!

We replaced the valve. No improvement.

Was suggested to replace the engine coolant temp sensor for the sake of £16 and 10 minutes time. No improvement! (top tip - but the little plastic circlip at the same time as the senor. Its £2 well spent!!)

Is the irony here that I am now looking at the thermostat (the route that I went with the 3.0 before finding out about the little valve under the gearbox )

The symptoms are that the car is very slow to warm up. The gauge remains on 50 for a good 10 minutes (+). It will eventually creep up to 70. If out on a longer run of 30 mins or so with a bit of traffic it will sit just below 90.

Interestingly, even when just over 50 I can still get enough heat into the cabin to at least take the chill off. And at 70 it will happily warm the cabin.

Any thoughts welcomed

[ainarssems]

Check radiator/hoses going to it. If they are warm when engine is showing 50C then thermostat is open and letting coolant to the radiator when it should not . If rad/hoses cold then it's something else.

Is the auxiliary Webasto heater working? 10 min to 50C does not seem that unreasonable in this cold weather if the aux heater is not working.

[Bushido]

Will have a check of that. Thank you