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-   -   What did you do to / for your E53 today?? (https://xoutpost.com/bmw-sav-forums/x5-e53-forum/78921-what-did-you-do-your-e53-today.html)

snik 01-11-2019 05:18 PM
My dudes. What is that box on the right side. I see it in pics of euro X5s a lot, but I don't have it on mine, nor have I ever seen it on a us model.
https://uploads.tapatalk-cdn.com/201...f462a14245.jpg


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wpoll 01-11-2019 05:20 PM
Quote:
Originally Posted by snik (Post 1151826)
My dudes. What is that box on the right side. I see it in pics of euro X5s a lot, but I don't have it on mine, nor have I ever seen it on a us model.
https://uploads.tapatalk-cdn.com/201...f462a14245.jpg


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Webasto Thermotop aux. heater. Fitted to diesel models mostly but available as an option petrol cars too.

snik 01-11-2019 05:24 PM
Quote:
Originally Posted by wpoll (Post 1151829)
Webasto Thermotop aux. heater. Fitted to diesel models mostly but available as an option petrol cars too.


Ahhhh. That's the auxiliary heat pump?


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wpoll 01-11-2019 05:30 PM
Quote:
Originally Posted by snik (Post 1151832)
Ahhhh. That's the auxiliary heat pump?


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Not quite - the aux. water pump is an electric water pump (like a big fish tank pump!) usually mounted in behind the left headlight. I think all e53 cars have this fitted.

The Webasto Thermotop aux. HEATER is an actual fuel-fired (diesel in my case) heater, that heats the engine coolant, to bring the engine up to temp quickly in cold weather. In conjunction with the aux. water pump, it can also be activated when the car is not running (by remote control) to heat the cabin (via engine coolant and the heater core) - great on a frosty morning! :thumbup:

*edit* If anyone is interested, I'll post a video of it's operation. :D

snik 01-11-2019 05:40 PM
Quote:
Originally Posted by wpoll (Post 1151834)
Not quite - the aux. water pump is an electric water pump (like a big fish tank pump!) usually mounted in behind the left headlight. I think all e53 cars have this fitted.



The Webasto Thermotop aux. HEATER is an actual fuel-fired (diesel in my case) heater, that heats the engine coolant, to bring the engine up to temp quickly in cold weather. In conjunction with the aux. water pump, it can also be activated when the car is not running (by remote control) to heat the cabin (via engine coolant and the heater core) - great on a frosty morning! :thumbup:



*edit* If anyone is interested, I'll post a video of it's operation. :D


Sounds like the same thing that some E53, 39, 38s have that can warm the cabin using the aux timer setup that's on the radio.


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wpoll 01-11-2019 05:54 PM
Quote:
Originally Posted by snik (Post 1151838)
Sounds like the same thing that some E53, 39, 38s have that can warm the cabin using the aux timer setup that's on the radio.


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I know some cars have a "REST" function that uses residual engine heat and the aux. water pump to pump hot coolant through the heater core when the engine is not running (but has been recently).

This is NOT that - it's entirely different. It heats the coolant directly. ;)

Overboost 01-11-2019 06:34 PM
Quote:
Originally Posted by wpoll (Post 1151834)
*edit* If anyone is interested, I'll post a video of it's operation. :D
Yes, please Wayne. I would love to educate myself a little more on the Webesto heater. We don't get them over here that I have ever seen. :dunno:

wpoll 01-11-2019 07:46 PM
*updated * Webasto Thermo Top Z operation
 
Quote:
Originally Posted by Overboost (Post 1151855)
Yes, please Wayne. I would love to educate myself a little more on the Webesto heater. We don't get them over here that I have ever seen. :dunno:
Here a quick video description of the Webasto Thermo Top Z operation ;)

https://youtu.be/trPWg1arWFg

andrewwynn 01-11-2019 08:07 PM
Quote:
Originally Posted by Overboost (Post 1151855)
Yes, please Wayne. I would love to educate myself a little more on the Webesto heater. We don't get them over here that I have ever seen. :dunno:

Since they run on diesel makes sense you can't find in the USA. I've been working on some way to pre heat our X5 especially when it's -20C. There was a block heater you could buy in Canada for m54 but most promising is a heater that taps into the heater core loop.

I believe you can configure the webasto with a standalone diesel tank to work on gas powered car.

wpoll 01-11-2019 08:11 PM
Quote:
Originally Posted by andrewwynn (Post 1151864)
Since they run on diesel makes sense you can't find in the USA. I've been working on some way to pre heat our X5 especially when it's -20C. There was a block heater you could buy in Canada for m54 but most promising is a heater that taps into the heater core loop.

I believe you can configure the webasto with a standalone diesel tank to work on gas powered car.
The Webasto Thermo Top Z has a pertol version, and the diesel version (easier to find on eBay) can be re-configured to work with petrol.

alex_j posted a DIY on this retro fit (to a 4.8iS) late last year.. :thumbup:

https://xoutpost.com/bmw-sav-forums/...e53-4-8is.html


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