Overview - Air Filter Housing
1 - Air Duct
On the lock carrier
Remove any dirt, leaves and salt residue.
2 - Water Drain Hose
Clean
3 - O-Ring
Replace after removing
4 - Secondary Air Injection Hose
For removal, press the release buttons on both s
Connection Diagram - Coolant Hoses
Connection Diagram - Coolant Hoses, Vehicles without Parking Heater
Note
Blue = large coolant circuit.
Red = small coolant circuit.
Orange = coolant circuit for the charge air cooler.
Brown = heating circuit.
Green = coolant circuit for the transmissi