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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series / 4 Series > E30 (1982 - 1993)

E30 (1982 - 1993)
God's Chariot. The E30 was produced primarily from 1982 through 1991. The cabriolet was the one exception which was produced through 1993.

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  #1  
Old 10-08-2012, 07:27 AM
colwell2008 colwell2008 is offline
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Location: OH
 
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Coolant light is on.

Coolant light is on. Do I have to pour out all the old coolant before fill in new one? What kind of coolant can I use besides the BMW branded one?

Thank you!
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  #2  
Old 10-08-2012, 07:38 AM
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Newman271 Newman271 is offline
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Mein Auto: 99' 540i M-Sport
Coolant light is prolly on because of coolant level sensor. But because I have no idea what year, or type of E30 you have I cannot help any further.
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  #3  
Old 10-08-2012, 05:37 PM
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BMWFatherFigure BMWFatherFigure is offline
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Mein Auto: E23;E30;E38;E32;E34 +
Unless you know it is low phosphate stick to genuine. As a guide, low phosphate in other brands is the same price as genuine.
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  #4  
Old 10-08-2012, 06:52 PM
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downhiller downhiller is offline
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if its green use green.

but if its low i would find where its going first. you could potentially have a major problem
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Old 10-11-2012, 11:11 AM
SturdyE30 SturdyE30 is offline
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Location: California
 
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Mein Auto: BMW E30
ya im guessing it to be the sensor also the sensor is an easy replacement and the part isnt expensive depending on your cars year and model mine cost about 30 bucks if i remember correctly and took me ten minutes to replace light went away id go with the sensor first because ur going to need to replace it anyways
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  #6  
Old 10-13-2012, 06:30 PM
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BigBoy740il BigBoy740il is online now
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Mein Auto: 1989/1991 E30; 2000 E38
Depending on your E30 (318 or 325e/i), BMW used one of three coolant reservoirs. In most cases, the main culprit is the level sensor. On BMWs with reservoirs mounted on the left or right wheel wells, BMW used a two wire sensor. If the reservoir is full and coolant low light is on, remove the level sensor connector and use a small piece of wire to connect between the terminals. If the light goes off the wiring is good, but the sensor is bad. For your question of what type of coolant to use. The main concern is that what ever brand you use (BMW, Everex, Peak, Prestone, etc), it MUST be phosphate free. This is a must because of the engine's cast iron block, aluminum heads, and the radiator's plastic/aluminum makeup. Today, most major brands are phosphate free and able to mix with other brands.

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Last edited by BigBoy740il; 12-01-2012 at 09:23 PM.
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