Mercury Diesel Engine Maintenance Reset Using OBDSTAR MarineMaster
This article demonstrates how to perform a maintenance reset on a Mercury Diesel engine using the OBDSTAR MarineMaster. The procedure is straightforward and can be completed in just a few steps with proper preparation.
Note:
Before starting, make sure the MarineMaster device is properly connected to the boat using the dedicated diagnostic cable.
Step-by-Step Maintenance Reset Procedure
Step 1: Enter Marine Diagnosis
Power on the OBDSTAR MarineMaster and tap [Marine Diag].
Use the search box in the upper-right corner to quickly locate the corresponding engine model.
Follow the menu path below:
[MERCURY / DIESEL] ’ [MERCURY DIESEL V33.01] ’ [Diagnosis] ’ [Injection System Integration Module] ’ [(2018–) Diagnosis on CAN Node (JUNCTION BOX)] ’ [Outboard – Avator – Tiler – GEN21B_AAQ]
Step 2: Access Maintenance Function
Enter the [Special Function] menu
Scroll down and select [Maintenance]
Tap [OK] to continue
Step 3: Confirm Maintenance Conditions
Read the scheduled maintenance description carefully
Shift the throttle to the required position as instructed on the screen
Confirm again to proceed
Step 4: Check Maintenance Remaining Percentage
Select any engine to view its maintenance remaining percentage:
100% – 16%: Normal condition
15% or below: Oil and oil filter replacement required
0%: Maintenance overdue
Stop the engine immediately and perform maintenance
In this example, 16% is shown.
Tap [Reset] to perform the maintenance reset.
Step 5: Reset Completed
When the message “Reset Complete” appears, the maintenance reset has been completed.
If the boat has multiple engines, repeat the same steps for the other engine(s).
Conclusion
With the OBDSTAR MarineMaster, resetting the maintenance reminder on a Mercury Diesel engine is quick, accurate, and user-friendly. This tool provides clear on-screen instructions and supports professional marine diagnostics and service tasks.