Diesel Exhaust Fluid Tank
The DEF tank unit is blow moulded from High Density Polyethylene (HDPE). The DEF tank is located under the left rear wheel arch panel. The DEF tank is secured to the wheel arch panel by 3 bolts. The DEF tank is shield protected by the left rear wheel arch liner. The DEF tank unit contains the DEF supply module which is welded into the tank, and supplied as a unit. The tank includes a 12% unusable volume to protect the internal components as a result of fluid expansion under freezing conditions.
If the ambient temperature falls below -11°C (12°F), the DEF will freeze in the DEF tank and this will provide difficulty with the refill procedure. In order to thaw the DEF in the DEF tank, place the vehicle in a warm place for 2 hours before refilling the DEF.
When the vehicle consumes more DEF than anticipated the Instrument Cluster (IC) message center displays a warning message to add DEF to the tank. For example extended vehicle use in extreme temperatures, 'at high altitude' or aggressive drive cycles.