BMW 325i how do you get air out of your lines?

Answer 1

LOL! I'm with you on that BIZLAR2002. Bleed oil lines! LOL...

Just a little point to add for bleeding the brakes. If there's significant air in the system, you should bleed every caliper in the following sequence:

1. Right rear
2. Left rear
3. Right front
4. Left front

This applies to the E46 cars.

Brake bleeding is easiest done with a pressure bleeding kit (a fluid-filled bottle with a pump and hose that attaches to your brake reservoir). When using such a kit, be careful not to exceed BMW's recommended 2 bar pressure.

Answer 2

Coolant or brakes? I can tell you both... here goes.

Brakes - I just did this so I have it down. ;) Take your wheel off. If you look behind the caliper there is a valve (there will be a rubber cap over it that doubles for a retainer for the brake pad sensor wire (green). You will need a socket wrench (that's what I used) or other wrench to take it off. Have someone sit in the car to press the brakes. Loosen the valve and have your assistant pump the brakes, when fluid comes out you should be good to go. I had my brother press the brake really slowly as I tightened to valve to insure that air didn't go back into the caliper. Bleed your brakes in this order.... driver front, passenger front, driver rear, passenger rear. If you have ABS and you don't have to bleed them all, you don't have to. If you don't have ABS you will need to bleed them all. You should have ABS I would hope though.

Coolant - When the engine is cold add coolant until the coolant gets up to the cold (kalt) line on the expansion tank. There is a plastic bleed screw located right next to the fill cap. Loosen it. Set temperature controls to warm and turn the car to ON position (do not start the car). Slowly add coolant until it bleeds out of the bleed screw, then tighten it. Close everything back up and start the engine. Run until it is warm, then turn it back off. After the engine has cooled, recheck the coolant level.

One last thing.... this is for e36 (92-95 in your case). Hopefully that is what you have. If not... it should be close to that.

Hope that helped.

PS - I hate how people answer the questions with answers that aren't answers. Like your brakes.... yea you bleed the brakes to get the air out... but people don't answer the HOW part of the question... if they don't know the HOW part, they shouldn't answer. Bleeding oil line? are you serious? Do you think mechanics bleed to oil lines when they change your oil? no. You don't remove the top radiator hose to bleed the coolant.... you will shoot coolant all over the engine. What applies toward other cars... doesn't normally apply to BMW.

Sorry... that wasn't directed toward you "funnypeoplerule"... just the answerers.

Answer 3

Brake lines? Bleed the brakes.

Coolant hoses? Run the engine a while, keep topping up the coolant. eventually it'll have 'burped' out most of the air in the system. Check the manual, see if there are any bleeding points to use.

Oil lines? As long as you haven't fitted a new oil pump (or, if you have, it was properly primed), just crank the engine over and it'll sort itself out as the oil circulates.

Answer 4

If you are talking about the brake lines then you have to bleed the brake lines to get the air out of them. That is the only lines that i can think of.

Answer 5

Brake lines? Fuel injection lines? Coolant lines? Bleed the brakes, remove the the fuel pressure regulator and crank the engine, and remove the top radiator hose, start the engine and add coolant... In that order.

Answer 6

HOT!!! COLD!!!!! What do you mean? lots of answers for that question, you need to be more specific.

Answer 7

which lines?