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Fluid type in heater system

Verfasst: 16.06.2026 15:31
von lunatic
I am having my heater motor serviced today and the old heater fluid will be drained out and replaced. See image of my existing fluid.

I have heard that you need special glycol in the heater system, not just automotive glycol. Is that correct? What is suggested is Propylene Glycol (USP food grade).

Does anyone also know the fluid capacity in litres of the heater system?

Any advice would be appreciated.

Ian

Re: Fluid type in heater system

Verfasst: 16.06.2026 15:31
von lunatic
Image of fluid attached now!

Ian

Re: Fluid type in heater system

Verfasst: 23.06.2026 23:14
von iCook
Hallo,
I'm sorry that I cannot directly help you due to the fact that I'm driving the previous generation T1N from 2005.
Have you tried to contact Westfalia via email?
https://westfalia-mobil.com/en/contact/
>> Should I do that for you in German language?
Best regards
Wolf

Re: Fluid type in heater system

Verfasst: 24.06.2026 05:38
von Vtxbe
Hi Lunatic,

have a look here : https://www.butlertechnik.com/thread/hi ... 1K89w2NhPc
butlertechnik is for my opinion the best site to get any information about Eberspacher and Webasto.

I have general purpose antifreeze for 10 years without anytrouble.