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surge or hunting

  1. E

    W124 300TD - idle surge/hunting. Delivery valve seals at fault?

    Hi all, The old girl has started hunting at idle. I've had a weep at the delivery valve seals for a while now, that I've never got around to fixing. Could this be the culprit? If so, can anyone recommend an online supplier for the o-rings and copper washers please? Thanks
    • Ed209
    • Thread
    • 300td delivery fault idle seals surge or hunting valve w124
    • Replies: 5
    • Forum: Engine
  2. corned

    Engine surge/hunting when cold

    Hi all. Here's another winter issue with the 211. I have had similar less pronounced symptoms earlier in the year, but now the cold weather has arrived the symptoms appear to be getting worse. From cold, the engine revs wander around, particularly on a very light throttle setting and at the...
    • corned
    • Thread
    • cold engine surge or hunting
    • Replies: 30
    • Forum: Engine
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