User Manual

Chapter 5
BOSCH HDI EDC 15C2 INJECTION SYSTEM AND PARTICLE FILTER
30
Air circulation (following arrows):
A - Exterior air inlet
B - Exhaust gases + air
C - Exhaust gases
a - Short inlet duct (helical shape)
b - Long inlet duct (tangential)
Parts list:
REF. DESCRIPTION
PART NUMBER IN
THE WIRING
DIAGRAMS
COMMENTS
1 Throttle housing control
electrovalve (EGR)
1263
2 "Swirl" control electrovalve 1264
3 "Swirl" control diaphragm -- Vacuum controlled
4 Recycling regulation
electrovalve (EGR)
1253
5 Vacuum pump --
6 Vacuum reserve --
7 Exhaust gas recycling valve
(EGR)
-- Vacuum controlled
8 Turbocharging pressure
regulation electrovalve
1233
9 Exhaust gas manifold --
10 Inlet air heater throttle control
electrovalve
1285
11 Variable geometry turbo control
diaphragm
-- Vacuum controlled
12 Finned diffuser piston --
13 Particle filter + catalytic
converter
--
14 Exhaust turbine --
15 Variable geometry turbocharger --
16 Inlet air turbine --
17 Air flowmeter + air temperature
sensor
1310
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