1999 BMW 528i

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1999 BMW 528

Car overheated. I am going to investigate but is there anything else to replace besides t-stat, w-pump, radiator cap i.E. Sensors etc? Also, looking down at the radiator to the left at the bottom is an electrical plug. On the right side of the radiator about 1/4 of the way down there is an electrical plug in. I am missing whatever plugs into this. What is this plug?

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MERLIN2021

MECHANIC
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Does the water temp gauge work correctly?

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Monday, May 7th, 2007 AT 5:05 PM

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The temp gauge never went past half way. The blowback was coming through the bleeder valve on the expansion tank. When the car cooled the I checked the bleeder valve with my fingers the top of it snapped off and I barely touched it.

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Monday, May 7th, 2007 AT 8:00 PM

MERLIN2021

MECHANIC
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This tank is made of? A) Metal.B). Plastic. If a replace it it was not holding system pressure anyway! Then pressure test the cooling system. Any radiator shop can do this.

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Monday, May 7th, 2007 AT 8:05 PM

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