Correct idle speed? - BMW Forum - BimmerWerkz.com
3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

 
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#1 (permalink) Old 08-16-2007, 10:03 PM
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Correct idle speed?

Hi there, was wondering what is the correct idle speed for an '87 325?

Mine sits at around 900-1000rpm and gets a little warm sitting at traffic lights.

Thx, Crispy.

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#2 (permalink) Old 08-16-2007, 10:11 PM
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I think my 89 325i idles around 6-700? maybe higher...



not sure though....

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#3 (permalink) Old 08-17-2007, 12:37 AM
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Just behind your thermo-time-switch is another temp switch this one has two open prongs on it, bridge the two connectors with a section of wire and see if you idle drops. This switch gives the car a fast idle until warm and when it goes bad it'll have a slightly higher than normal idle. Normally, I just by pass this unless the temp in your area gets below 20 deg in the winter.
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#4 (permalink) Old 08-17-2007, 01:52 AM
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Thx, its starting to be a problem, getting way too warm.

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