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The following test steps must be performed in the given order. If a fault is found in one test step, the subsequent test steps can be skipped.
Function Checks
- Check for pressure decrease in the high pressure section.
(leakage, blockage)
- Perform a visual check of the following components:
High-pressure fuel pump
Common Rail
B176 Sensor - Rail Fuel Pressure
Y161 Solenoid Valve - Fuel Metering
Y154 Solenoid Valve - Fuel Pressure Regulation
L2A Injection Valve - Cylinder 1
L2B Injection Valve - Cylinder 2
L2C Injection Valve - Cylinder 3
L2D Injection Valve - Cylinder 4
After successful test/fault repair proceed to the next test step
Note:
Please take notice of any relevant safety measures for each work operation / step.
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