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3-Series (E46, E90) Chat relating to the BMW 3-Series from 1999 to Current. Models include: BMW 316i, BMW 318i, BMW 318Ci, BMW 320i, BMW 323i, BMW 325i, BMW 330i, BMW 328 Ci, BMW 328i, BMW 325i/xi, BMW 330Ci, BMW 320d, BMW 330d, BMW 335d.

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Old 10-01-2013, 07:37 AM   #1 (permalink)
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Output voltage to the a/c relay

What is the output control voltage from the MS 43 DME on pin number 29(KOREL ACTIVATE RELAY COMPRESSOR)that feeds the relay coil,not the compressor coil,if i can know the voltage,il will know what size of relay to buy as i want to externally mount it under the hood,the inner one behind the IHKA module is faulty and hard to reach,obviously its not 12v as the purpose of the relay is to switch 12v with low voltage. E46 325 M54 engine

Last edited by BM POWER PLANT; 10-01-2013 at 07:42 AM. Reason: additional text
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