Question about 1998 Mercedes-Benz E-Class

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Air Conditioner for Benz 1998 E320

I have noticed that cool air started coming from the central vents that are located on the top side of the compartment and also from right and left side vents. Also air coming is not cool enough.

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  • mmoran5555 Dec 31, 2008

    The left air vents' temperature is hotter than the right vents' temperature on a 1998 Mercedes Benz E320

  • Anonymous Mar 30, 2014

    Chemical smell inside card when first starting air conditioning. Now comes on in the Economy mode only.

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Check system for codes;

Displaying & Reading Trouble Codes (DTC Memory)
Air Conditioning (A/C) 

Models 208 as of MY 1998

Diagnostic trouble Code Memory [15] 

Note: 

  • The A/C pushbutton control module (N22) has DTC memory and data output. The diagnostic trouble codes and data are displayed via the temperature display window. The stored DTC's will remain in memory even with the vehicle battery disconnected.
  • The DTC memory differentiates between current and intermittent faults.
  • Numerous DTC's can also be read with the Hand-Held Tester (HHT).

Preparations for DTC Readout 

  1. Review 11, 12, 13, 14, 15, 21, 22, 31, 31, 41
  2. Ignition: ON
  3. Temperature selector: left: "HI"; right: "LO"
  4. Ignition: OFF
  5. Ignition: ON
  6. Within 20 seconds press REST and EC simultaneously for more than 5 seconds.
  7. The LED in Recirculated Air flashes and the display shows "d1A".
  8. Press AUTO repeatedly until all DTC's are displayed. Record each DTC as it is displayed.
  9. Each fault (short circuit, open circuit) is assigned a DTC. Thus in the left display: "E1" appears, and the right display indicates the DTC. The current faults (refer to table) are displayed first, next, the intermittant failures (e.g. 45 °5) are displayed in the display window next to the FAN symbol. By pressing the right AUTO the next DTC is displayed.
  10. To erase: Can only be performed after all faults have been readout. Press left AUTO and right AUTO buttons simultaneously for more than 2 seconds and the display shows: left: "d" and right: "FF". To cancel erase: By pressing the left AUTO button, the current faults will appear again.
  11. Select a base temperature setting.
  12. Turn ignition OFF, to end test.
Note: Due to instrument cluster (IC) series interface, DTC's may be stored in IC memory, therefore readout and erase DTC's from IC memory.

Air Conditioner for Benz 1998 E320 - 133090425133090426

Posted on Dec 30, 2008

  • John Weathers
    John Weathers Dec 30, 2008

    If you pull up the codes get back to me and I will tell you what they are.

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