R129 1991 300SL-24 (104.981) no oxygen sensor

Discussion in 'Electronics' started by Frankst129, May 24, 2016.

  1. Frankst129

    Frankst129 New Member

    Messages:
    3
    Joined:
    May 9, 2016
    Car:
    R129 300sl 24v
    After a long search on what's causing fuel smells in the exhaust and the engine not running smoothly on operating temp, I decided to replace my oxygen sensor. To my big surprise, only the connector (see picture) is installed. The hole where the wires to the sensor are supposed to be is sealed off. The car was originally delivered in the US (Boston) and shipped to Europe in 1995. I'm looking for experience with such a car and want to find out what impact this setup can have on the optimalisation of the fuel mixture.
     

    Attached Files:

  2. jaymanek

    jaymanek Authorised Forum Sponsor Authorised Forum Sponsor

    Messages:
    16,412
    Joined:
    Nov 29, 2002
    Location:
    Nuneaton Warwickshire
    Car:
    Lots of Mercedes!
    Not a lot from my experience..

    They are hardly ever connected/working.. I spent ££ replacing mine and felt no difference at all.
     

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