Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

System Overview



System Overview, 4 Cyl.







1. Air intake pipe
2. Air cleaner consisting of:
3. Cover
4. Filter element
5. Air cleaner casing
6. Mass air flow sensor
7. Connecting hose
8. Pipe connector to turbo unit and charge air cooler
9. Bypass pipe
10. Charge air bypass valve
11. Pressure/temperature sensor
12. Throttle valve

Short description
The air induction system consists of an air cleaner, mass air flow sensor, connecting pipes hoses, turbocharger and air cooler. The system is connected to the throttle body.

The filer element removes particles of dust from the intake air and also functions as an intake air silencer.

The mass air flow sensor provides the engine management system's control module with continuous information on the air mass consumed by the engine.
The mass air flow sensor's signals are processed by the control module which monitors the fuel-air mixture needs of the engine.