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Engine service light 35d

Discussion in 'E70 X5 (2007-2013)' started by mkc1860, Sep 5, 2009.

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    Has anyone had any problems with recurring need to "service the engine soon". I traveled about 700 miles a few weeks ago and the little engine light which in the handbook is a Canadian light, came on indicating service the engine. My dealer noted that they had not seen the error code before. They replaced rear oxygen sensor. This lasted for 4 days as today I traveled about 120 miles at highway speeds and the service engine icon came back on. The thought was "bad fuel" even though I had been using the same fuel station for the past 3 months. Anyone with a "not seen before service code" noted by their dealer?
    thanks mj

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