Does anyone have engine heater in E39 M5?
Electrical(Defa/Calix) or petrol (Webasto/Eberspacher)?
I would like to know is it possible to have one of those in M5?
Other option for my M5 is 6 months in garage every year and buying some older BMW like E34lovelove 525-535 for wintercar
One of our Scandanavian members (I think) wrote a detailed post several years ago about how he configured his car with block heaters and I remember it being a nicely done job utilizing the fog light cover for the electrical connection. Can't recall who but a search should bring it up.
After a nasty cold snap last year I had the oil sticking to the engine instead of returning to the pan. I bought a glue on pan heater, it does work but only heats the oil. It also is only used for a max of 1 hour which makes it a bit of a pain. No plug and forget you have to think about when you will be driving the car.
That said until it gets below -25 I have had no issues or need for heat.
Defa heater is external and fitted to oil pan, as it heats the oil/block from below, the heat transfers to top of the engine too and gets coolant fluid warmer too. It is meant to ve on at least 2 hours and basically there is no max time for it. Although even in coldest temperatures over 5-6hours is not needed.
http://youtu.be/Q4KWTIZYCMI I remembered +5c would be the temperature but apparently more recent studies have came to even higher temperature solution....
I have always wanted one of those Webasto heaters for the auxiliary heat feature.
That being said, for the week that we saw the oddly cold -10 to -28F weather last year, I had no issues with my M5.
I was more thinking of the Webasto setup from 540/740, fuel driven, heats water + runs aux fans with timer already in place in Nav unit. - I guess it was dropped out from M5 due to space limitations (I think watertank for wipers is using that space on M5?)
Had one on my 530d - it was great. Lived in rear of right hand side front wheel well (when viewed from drivers seat)... Really pumped some heat out. Probably no reason why you could not retrofit a webasto in that gap if space is there.
I added remote key fob that could trigger it from up to 2km's way!
BMW has offered their "own" Webasto, it's coolant heater. http://bmwfans.info/parts-catalog/E...and_air_conditioning/fuel_supply_pump_tubing/ Get those parts and heater from webasto. Seems like retrofit kit is not anymore available for e39.
I have one in my E61 and it's nice to have but these heat the interior only, unless you do small modification. Then it runs heated fluid also in the engine.
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