|
|
|
STARTING AND OPERATING 171 (Continued) DEF FILL PROCEDURE NOTE: Remove cap from DEF tank (located on drivers side of the vehicle or in fuel door). DEF Filler Cap And Fuel Fill Chassis Cab Models NOTE: The DEF gauge may take up to five seconds to update after adding a gallon or more of DEF to the DEF tank. If you have a fault related to the DEF system, the gauge may not update to the new level. See an authorized dealer for service. The DEF gauge may also not immediately update after a refill if the temperature of the DEF fluid is below 39°F (4°C). The DEF tank heater will possibly warm up the DEF fluid and allow the gauge to update after a period of run time. Under very cold conditions, it is possible that the gauge may not reflect the new fill level for several drives. At 40°F (4°C) you could see some increase in the DEF gauge due to the tank thawing. The gauge and level sensor are working properly and are just updating with proper thawed DEF. Excessive overfilling of the DEF tank can result in a MIL lamp/fault code and inaccurate level readings. Refilling With Nozzles Insert the DEF nozzle in the filler tube, start refilling and stop refilling at the first shut-off (the shut-off indicates that the DEF tank is full). DO NOT proceed with the refilling, to prevent spillage of DEF. Extract the nozzle. Refilling With Containers Check the expiration date. Read the advice for use on the label before pouring the content of the bottle into the DEF tank. After the indication appears on the instrument page 81 fill the DEF tank with no more than 6 gallons (22 liters). 1 — Diesel Exhaust Fluid (DEF) Fill Location CAUTION! To avoid DEF spillage, and possible damage to the DEF tank from overfilling, do not “top off” the DEF tank after filling. DO NOT OVERFILL. DEF will freeze below 12ºF (-11ºC). The DEF system is designed to work in temperatures below the DEF freezing point, however, if the tank is overfilled and freezes, the system could be damaged. When DEF is spilled, clean the area immedi - ately with water and use an absorbent mate - rial to soak up the spills on the ground. Do not attempt to start your engine if DEF is accidentally added to the diesel fuel tank as it can result in severe damage to your engine, including but not limited to failure of the fuel pump and injectors. 4 |