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MTU 12V 1600 R50 — Engine coolant - Draining

Maintenance · Coolant circuit

For the MTU 12V 1600 R50, from the MTU operator's manual.

Applies to: MTU 12V1600R50 engine

Before you start

  • Coolant is hot and under pressure; risk of injury and scalding

Procedure

  1. Provide container to drain coolant into; switch off preheater if installed.
  2. Release pressure at breather valve and remove.
  3. Draw off precipitated corrosion inhibitor oil from expansion tank.
  4. Open drain screw and drain coolant at engine coolant pump.
  5. Open drain screws and drain coolant at crankcase right and left sides.
  6. Install drain screw with new sealing ring.
  7. Place breather valve on filler neck and close.

Source: MTU operator's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.

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