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Home >> Mercedes Benz >> 1994 >> C220 >> Repair and Diagnosis >> External Pages >> Different car >> Section 62 (Automatic Transmission - 140 Chassis) >> Testing & Repair >> Measuring and adjusting pressure values - AR27.10-P-0180A >> Adjusting modulating pressure - AR27.10-P-0180-01A

Adjusting modulating pressure - AR27.10-P-0180-01A

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  1. Disconnect vacuum line.
  2. Remove rubber cap on vacuum unit (60).
  3. Withdraw lock plate (2) from the locking slots until it is possible to turn it.
  4. Adjust the adjusting screw using the lock plate (2)

    IMPORTANT

    One turn results in a change in pressure of approx. 0.4 bar.

  5. Press lock plate (2) into the locking slots again.
  6. Put rubber cap back on vacuum unit (60).
  7. Measure modulating pressure again.
  8. Connect vacuum line.
    Fig 1: Identifying Lock Plate And Vacuum Unit
    G04679337Courtesy of MERCEDES-BENZ OF NORTH AMERICA.