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Home >> Chrysler >> 2009 >> 300 Signature Series >> Repair and Diagnosis >> External Pages >> Different car >> Section 243 (5.7L Engine (Service Information)) >> Engine Block >> Solenoid-MDS >> Description >> MDS Solenoid

MDS Solenoid

WARNING: This page is about a different car, the 2008 Dodge Magnum, 2008 Dodge Charger, and 2008 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.

The Multi Displacement System selectively deactivates cylinders 1,4,6, and 7, to improve fuel economy. It has two modes of operation:

  1. 8 cylinders for acceleration and heavy loads.
  2. 4 cylinders for cruising and city traffic.

The main components of the Multi Displacement System are:

  1. Unique MDS camshaft.
  2. Deactivating roller tappets.
  3. 4 control valves/solenoids.
  4. control valve/solenoid wiring harness.
  5. oil temp sensor.
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