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Thread: 1983 633 CSI ignition switch issue.

  1. #1
    Join Date
    May 2006
    Location
    Eugene, Oregon
    Posts
    223
    My Cars
    1983 BMW 633CSI,1988 Volvo 244DL

    1983 633 CSI ignition switch issue.

    I have a 1983 633 CSI. I ordered a new ignition switch for the car. I installed it in the colum and found that it goes to assesories but does not start the car. Its almost as if it can’t turn far enough to crank the motor. If I pull it out I can turn it outside the colum and start the car. Is there an adjustment I can implement to fix this, or did I get a defective switch? Thanks for any help. Nick.

  2. #2
    Join Date
    Feb 2009
    Location
    Pittsburgh, PA
    Posts
    1,718
    My Cars
    '86 635CSi, '08 128i
    Your car is pretty close to the turnover between the E12 and E28 models build dates (9/1982?), are you sure BMW got you the correct part? According to RealOEM, the early part is 61321366107 (9/78-9/82), mid-production part is 61321372931 (9/82-9/85) and the late-production part is 61321377105 (9/85-4/89).

    Can those early units can accidentally be installed backwards or slip inside the housing? Looks like there's a grub screw to retain it but the diagram isn't very clear on that. Post some pics if you get a chance.

  3. #3
    Join Date
    May 2006
    Location
    Eugene, Oregon
    Posts
    223
    My Cars
    1983 BMW 633CSI,1988 Volvo 244DL

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