300E 4MATIC (124.230) L6-3.0L (103.985) (1990)
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Air/Fuel Mixture: Specifications
AIR/FUEL RATIO
On/Off Ratio [1] ...................................................................................................................................................................................... Readout Oscillating
[1] At Diagnostic socket, with on/off ratio tester, and 02 sensor connected. Reading should be within +10 of the value at 2500 RPM.
