Macerator Pump Winterizing; Vehicle Storage; Restoring Service - Airstream INTERSTATE 24 2024 Owner's Manual

Macerator Pump Winterizing

Plan your winterizing and storage ahead, and be sure
the holding tanks are drained and flushed thoroughly.
This is very important, as the frozen sewage and water
could seriously damage the system� After dumping
the tanks, add RV, non-toxic antifreeze to one of the
holding tanks and start the macerator pump� Run the
pump until the RV, non-toxic antifreeze comes out the
end of the pump hose, then close the dump valve� As
extra protection, open the toilet valve and add RV, non-
toxic antifreeze through the toilet into the Black Water
tank and pour RV, non-toxic antifreeze into a sink drain
to protect the holding tanks, valves, and pump from
residual water freezing�

Vehicle Storage

In addition to winterizing your coach, the following
practices are recommended to prevent damage that
can occur during storage:
• Because brake fluid absorbs moisture from the air,
Mercedes-Benz recommends changing the brake
fluid when the vehicle is not driven for long periods
or when stored for over six months�
• Do NOT use any fuel additives for storage�
• Fill the fuel tank to FULL before storage and
use diesel fuel with a bio-diesel content of
5% (B5) or less to avoid moisture buildup and
contamination� Storing the vehicle with B20 fuel is
not recommended as it may promote algae growth�
Do not store the vehicle for more than 30 days with
B20 diesel fuel in the tank�
• Keep the coach plugged in so the battery
maintainer can charge and maintain the chassis
battery�
• While it is not required, you may opt to change the
oil before storage to flush out any contaminants.
• Move the vehicle regularly or use tire-saver ramps
to help prevent flat spotting. Tires can be inflated to
80 PSI to help prevent flat spotting, but they must
be inflated to the correct pressure before driving.
Keep a note on the vehicle or with the keys as a
reminder to adjust the tire pressure prior to driving�
If tire-saver ramps are not used, move the vehicle
a few feet periodically to avoid flat spotting.
2024 Interstate 24
• Clean the interior of the vehicle and remove all
food and beverage items� Empty, clean, and turn
off the refrigerator and leave the door open to
avoid mold growth� If mice or other rodents enter
the vehicle, they can chew through wiring and
cause significant damage. Consider using a rodent
repeller�

Restoring Service

1� Re-install the fully charged house batteries�
2� Close the low point drain valves, holding tank
dump valve, water faucets, and fresh water tank
drain�
3� Reconnect water pump line�
4� Add water to the fresh water tank�
5� Turn the water pump on�
6� Open and close faucet valves one at a time until
water runs clear at all faucets signaling the RV,
non-toxic antifreeze is flushed out of lines. Go back
and recheck water clarity at all faucets�
7� Turn off water pump�
8� Hook up city water, open faucet valves, and
recheck water clarity�
9� Close water heater drain valve and reset the water
heater bypass valve to normal operating position�
Maintenance
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