Mercury Marine MCM 4.3L / MCM 4.3L EFI — Checking Power Steering Fluid Level (Engine Warm)

Maintenance · Power Steering Pump

For the Mercury Marine MCM 4.3L / MCM 4.3L EFI, from the Mercury Marine service manual.

Procedure

1. Stop engine; position drive unit straight back.
2. Remove fill cap/dipstick from power steering pump and note fluid level.
3. Level should be between FULL HOT mark and ADD mark on dipstick.
4. If below ADD but fluid visible, add Quicksilver Power Trim and Steering Fluid or Dexron III ATF.
5. DO NOT OVERFILL.
6. If fluid is not visible in reservoir, a leak exists; find cause and correct.

Source: Mercury Marine service 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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