Location Of Components, Engine Compartment

Fig 1: Locating Engine Compartment Components (B5254T3/T7)

Courtesy of VOLVO CARS OF NORTH AMERICA.

Not all the following components are necessarily in the car. The components vary between engine types.

	Component	Located at/on:
1	Injectors (5 x)	Intake manifold.
2	Intake camshaft reset valve	Engine, timing belt side, by camshaft.
3	Exhaust camshaft reset valve	Engine, timing belt side, by camshaft.
4	A/C pressure sensor	Air conditioning (A/C) system high pressure pipe (thin pipe).
5	Air conditioning (A/C) pressure switch	Air conditioning (A/C) system low pressure pipe (thick pipe).
6	Turbocharger (TC) control valve	The turbocharger (TC).
7	Ignition coil (5 x)	The cylinder head.
8	Evaporative emission system (EVAP) valve	Intake manifold.
9	Camshaft position (CMP) sensor, intake	Engine, flywheel side, by the camshaft.
10	Camshaft position (CMP) sensor, exhaust	Engine, flywheel side, by the camshaft.
11	Integrated relay/fusebox
12	Engine speed (RPM) sensor	Above the flywheel.
13	Mass air flow (MAF) sensor	The air cleaner (ACL) module.
14	Engine coolant temperature (ECT) sensor	The thermostat housing.
15	Engine control module (ECM)	The air cleaner (ACL) module.
16	Knock sensor (KS)	The cylinder block under the air cleaner (ACL) module.
17	Engine cooling fan (FC) control module
18	Oil pressure switch	Lower front edge of the engine.
19	Boost pressure sensor	The charge air cooler (CAC) upper right-hand section.
20	Throttle unit	The engine intake manifold.
21	Fuel pressure sensor/fuel temperature sensor	Fuel rail right face.