My 2001 520i BMW 2001 model has stopped blowing heat/ac. It was working fine when I last drove it for about 100 miles. But then the next day it didn't work at all. Even front and side windows demisters not working. However rear screen demister is working nice.I am not sure what could b the problem. ThoughI have checked fuse in the fuse box in the car boot. It seems to be ok.

no country stated
no car stated.
model 30 , must mean. 3L engine of some kinds>?
Rodeo or Axiom.?

bet is to cut the key on any engine that overheats.
of things warp.
when things warp.
there is no limits to damage when and engine overheats.
unless you save it with quick action

does it crank? over. (means crank shaft spins) starter works?
is compression still good, bet not. (a cheap too to test this is easy)

Check the fan on the radiator. They may have missed plugging it back in.

sounds like you have a wire rubbing against metal and blowing the fuse. look in owner's manual and see if the a/c fuse only powers the a/c compressor. if it does the bypass the wire with one ran from the compressor to the a/c fuse and drive vehicle to see if it blows again. if it has other things powered by the fuse then check all the wires for rubbed or broken areas.

first of all, was the water on the passenger side from the air conditioner or a leak (what color was the fluid?)-the cap has to be tight, otherwise it will not hold pressure, so that has to be checked before you set off again-push down as you turn the cap clockwise, and it will not hurt to have water in the system (it actually transfers heat better than antifreeze) but it has a much lower boiling point, so the cap has to be tight. Pay attention to the temperature gauge and do NOT overheat it-it is an aluminum engine and they do not tolerate excessive heat. Take your time, no AC (although the AC being on can keep a good cooling system more stable since the radiator fan is forced on when the AC is running, so you can, within reason, experiment)-no matter what, just don't let it run hot-not worth it.

remove the colas and repair or change it because the colas is not straight that's while there's pressure in pipes and inside water system .. the CO2 is going to mixed with water

blower moter resister

I don't have a solution, but the same problem. I can't figure out howcome it is cooler (though not cold) when the fan is on 1. Hot all other settings

never seen a truck like this ,iam in spain but from the sound of it one belt drives a/c and another the power steering and altenator ,pos water pump as well but this could be driven by the timing belt .As i said i have never seen one of these trucks .If i had it in front of me i could soon tell you .

There is probably a fuel relay somewhere in that circuit to, that may be faulty. Check your front drivers side inner fender by shock tower for 3 relays. It should be the middle one.