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Thread: 1987 325iC Convertible

  1. #1
    Join Date
    Aug 2018
    Location
    Viroqua, Wisconsin
    Posts
    4
    My Cars
    1987 BMW 325iC

    1987 325iC Convertible

    170,000 miles, got a rough idle when cold, after it warms up, it idles fine. Something simple I'm thinking...any ideas?

  2. #2
    Join Date
    Sep 2014
    Location
    KS
    Posts
    766
    My Cars
    99 M3|03 540i M Touring

  3. #3
    Join Date
    Apr 2010
    Location
    Dadeville, Alabama
    Posts
    9
    My Cars
    1983 320i
    Probably the Temp sensor, mine did the same thing. O2 sensor will make car idle smoothly once it warms up but the temp sensor is designed too tell engine that it needs more fuel cause its cold. Replaced mine in 5 minutes and fixed immediately. Sensor is in front of engine near the thermostat housing.

  4. #4
    Join Date
    Aug 2018
    Location
    Viroqua, Wisconsin
    Posts
    4
    My Cars
    1987 BMW 325iC
    Thanks I'll take a look

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