Operation CHARM: Car repair manuals for everyone.

Component Layout

Digifant system, underhood component layout






1 - Air filter
2 - Knock sensor (G 61)
3 - CO potentiometer (G 74)
with CO adjustment screw and intake air temperature sensor (G 42)
4 - Fuel pressure regulator
5 - Digifant control unit (J 169)
6 - Idle speed adjustment screw
7 - Throttle valve housing
8 - Boost control valve housing
9 - Idle switch (F 60)
10 - Full throttle switch (F 81)
11 - Fuel rail assembly including fuel injectors
12 - Idle stabilizer valve and boost pressure regulator (N71)
13 - Oxygen sensor heater/probe harness connector
14 - Intake manifold
15 - Coolant temperature sensor (blue)
supplies signal to control unit
16 - Coolant temperature sensor
(black) supplies signal to temperature gauge
17 - Ignition distributor with Hall sender (G 40)
18 - Ignition coil (N 152)
19 - G-charger
boost pressure checking. Testing and Inspection
20 - Pressure switch (F 130)
- for fuel pump after-run
- checking, Testing and Inspection
21 - Thermoswitch (F 87)
for radiator cooling fan after-run
22 - Carbon canister control valve
checking, Testing and Inspection