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WL-C Engine
High-Pressure Pump
•
The BT-50 uses the high-pressure pump (CP3S3) with three pumping elements offset by
120°. The operation is similar to the high-pressure pump (CP3.2) used on the Mazda3
(1.6 MZ-CD), which is also manufactured by Bosch.
1
Fuel return
2
Fuel high-pressure from fuel filter
3
Fuel temperature sensor
Common Rail
•
The common rail is equipped with a fuel pressure sensor and a pressure limiter valve,
which are not available as separate spare parts. In case of a malfunction on these
components the common rail must be replaced as a unit.
1
Connection (fuel injector side)
2
Fuel pressure sensor
3
Connection (high-pressure pump side)
NOTE: The high-pressure pipes can be re-used up to five times after removing.
Service Training BT-50
4
High-pressure pump
5
Fuel metering valve
6
Gear-type feed pump
4
Common rail
5
Pressure limiter valve
Fuel System
BT-50_01030
BT-50_01031
01-29
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