420sel

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    W126 420SEL 1991 - Running very lumpily and cutting out at low revs

    Hello all, This is my first post on this great forum. I have a 420 SEL 1991 which we are in the process of recommissioning. It was laid up for over 10 years in a barn. It runs very lumpily, misfiring slightly, and very frequently cuts out at low revs. It starts first time every time, even after...


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