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oil coolant tdi bhw head gasket

  1. Oil overflowing coolant tank

    VW Mk4 Jetta, Golf, New Beetle, Passat TDI forum
    Oil found overflowing the coolant tank. Removed the oil cooler and checked the coolant side with a vacuum and it held 25 in. Hg. What are the sources of oil going into the coolant? Thanks!
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