2003 BMW 325
Problem for BMW 2003 325

Radiator




By garydall on May 19, 2009

" "
i just changed che coolant temp sensor and want to know how to bleed the system? can you help plz
Comments:

May 19, 2009

- will that stop my engine overheating? and give me hot air?

May 19, 2009

- its a 1994

Solution #1

posted on May 19, 2009
Somewhat Helpful)

red_blazer_1

Rank: Guru 
Rating: 88%, 31 votes
to drain the radiator get a bucket first of all secone pop the hood and look down towards the bottom of the radiator on the left hand side (in some cases you might have to go under the car) you should see a small white screw looking thing this is the drain take it out and the coolant will drain

if you want to drain the heater core as well just start the car as the radiator is draining and turn the heater on full blast
Comments:

May 19, 2009

- it might as long as you put the right mixture of coolant to water the mixture is 50/50 you can buy straight up coolant and mix it with water or u can buy coolant that is already mixed properly and put it right in if this doesnt help the overheating then it could be something else maybe the thermostat one way to check the thermostat it to try to turn on the a/c if the wont put out cold air then its probably the thermonstat ....hope this helped

May 19, 2009

- im sorry but i did not read your second comment right did you say you werent gettin hot air out of your heater? is this is the case then the thermostat is almost certainly the problem what is most likely happening in the case is the thermostat is stuck shut so now coolant is flowing freely..this cause the engine to overheat because the coolant cannot flow so it constantly stays hot...the heater isnt puttin out hot air because that water is stuck in the cooler part of the block and isnt getting hot you may want to get this checked out by a mechanic but i am almost certain that is the problem once again im sorry for misreading you and please disregard my last post
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