Filling; Changing; 2.8 Air Filter; Removal - Mercury MerCruiser Diesel Inboard 2.8L Operation & Maintenance Manual

IMPORTANT: Tighten the pressure cap to prevent coolant loss.
5. If the coolant level is correct, install the pressure cap and tighten.

Filling

1. Allow the engine to cool.
2. Remove the pressure cap from the coolant expansion tank.
3. If the coolant is low in the coolant expansion tank, add the specified coolant as necessary to bring the level to within 25 mm
(1 in.) of the bottom of the fill neck or between the upper and lower marks, if applicable.
Description
Mercury Extended Life Antifreeze
IMPORTANT: When installing the pressure cap, be sure to tighten it securely to prevent coolant loss.
4. Install the pressure cap. Tighten securely.

Changing

Change (replace) the engine coolant at the prescribed interval. See Replacing the Engine Coolant in the Closed‑Cooling
System.

2.8 Air Filter

Removal

1. Remove the retaining nut from the air filter cover.
2. Remove the air filter cover.
NOTE: It is not necessary to remove the air filter bracket mounted on the turbocharger inlet.
90-8M0133679 JUNE 2017
eng
a - Pressure cap
b - Bottom of fill neck
a
b
23248
Where Used
Closed‑cooling system
Section 4 - Maintenance
Part Number
877770K1
Page 45