I have a bmw 525i 95...when i turn on the blower the car either shuts down or overheats and runs really rough..can anyone help

Hello,

The safest way for you to know which gearbox fits your car (second hand) you first have to go to a parts shop with your VIN and get the code and the model for your gearbox.

Don't just rely on car year and engine power.

Hope this helps

There's trapped air in the cooling system.

• You need to remove the bleeder screw on top of the radiator when adding water to the expansion tank.
• With the engine running, pour water into the expansion tank till you see air go out through the bleeder screw's hole.
• Just keep adding water until no more air bubbles come out then just put the screw back in place.
• Then fill the expansion tank to it's normal level/line.

Why was the battery missing to begin with? I would start by checking all fuses under dash and Central hub. Check for burned in-line fuses,if any, coming off of battery cables.

My guess is that your electric fan is NOT operating at all. Under normal conditions, just going down the highway, your cooling system will function just fine without a fan running. The air flow through the radiator is adequate to keep things cool. However, when you stop, you quickly get into an "overheat" situation. Actually, you should be able to hear your fan begin operating when your engine temperature starts climbing or your air conditioner requires the fan to do its thing. Note: If you've ever severely overheated your engine, your problems may be worse than just a fan not running, but you really do need to confirm whether your fan is operating correctly, or not. Another note: I had a vehicle with a tendency to overheat when stopped. It turned out to be a faulty (leaking) pressure cap on the cooling system.

fuel pump low in volume, or even a failed crank sensor,

You should make sure there is no air in the cooling system. With the engine COLD open the bleeder screw, take the cooling cap off, make sure it is full, put your mouth on the neck and blow until a clear stream of antifreeze comes out the bleeder. Then close the bleeder, top up the coolant, and you should be good to go, unless there is another problem.

It should be fine to pull a small trailer but you need to fix the overheat problem first. Sounds like a problem with the fan. Like the blades aren't turning because of a bad fan clutch.

Are you sure the Fan is turning to cool the Engine? If it is not coming on to cool Engine Check the Rad. cooling fan relay.

you might have a blown head casket try due a pressure test on each cylinder and sometimes you can take a spark plug out 1 by 1 and just tap the ket so it cranks and see if water comes out of the cylinder

I would check the door lock actuator and the actual linkage. you need to remove the outside handle assembly for full inspection. on your model year car the linkages sometime wear out at a camon the handle that rotates the linkage. sounds really like you have worn linkage/handle.