Major Contributor
HVAC operational with engine off
Is there any air conditioning system which is capable of working with engine off in a BMW?
1994 520i with M50 engine, manual transmission and air conditioner.
VIN: GG45422
5-10 Grand Master
all america wants is cold beer warm cat and a place to take a poop with a door on it
Major Contributor
That is not a BMW
1994 520i with M50 engine, manual transmission and air conditioner.
VIN: GG45422
5-10 Grand Master
bitch bitch bitch
Originally Posted by t_marat
That is not a BMW
all america wants is cold beer warm cat and a place to take a poop with a door on it
Big, Big Time Poster
I thought the Euro's had the two HVAC timers as a option on the obc? I know it was an option here in AUS.
Do a search.
BMW parts professional
Previous rides:
BMW
E12 M535i (go the dogleg!)
E28 M535i (MMM M88!)
E34 535i M
MAZDA:
RX7 S-IV T04 (440 hp ATW)
RX7 S-I 13b bridge port
RX4 13b peripheral port
Grand Master
the HVAC timer is just for the air circulation fans, the compressor wont run without the engine spinning.
Alusil, Dinan DME | ITG Air Filter | Eibach/Bilstein HD | 26/20 Swaybars | Iridium plugs | Depo/ProLumen HID | Optima batt. | no AC | Stoptech brake lines, Frozen rotors, brass bushings, Superblue
3 Grand Master
some euro bmws have a heater only(small gas burner) so you can warm up the car before you get in but not the a/c.
I spose a big battery bank and timer and electric motor could operate the a/c via the timer...i bet it wont be long before most of the accessories are driven by electric motors any way so with 48 v batteries its alll easy.
Gone but not forgotten
Major Contributor
Why haven't they implemented an electric motor to drive the compressor so far? At least on models like 750, some of them (as far as I know) have 2 batteries.
1994 520i with M50 engine, manual transmission and air conditioner.
VIN: GG45422
5-10 Grand Master
the power requiered to run a blower aux fan and compressor would squash a battery on no time, 20-25 odd amps X 2 for blower/fan 3-5 amps for the compressor and maybe 30 or more for a motor to drive the compressor, you'd have decent ac for 15 minutes shitty ac for 10-20 and a almost useless battery after that
all america wants is cold beer warm cat and a place to take a poop with a door on it
3 Grand Master
it will happen when we get to the 48 v,alternator/starter/...
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