Fuel System - No Start/Driveability When Cold
Engine does not start at low outside temperatures
Topic number LI47.00-N-048803
Version 1
Design group 47.00 General
2010 Mercedes Benz Truck Sprinter 2500 Crew (906.733) V6-3.0L DSL Turbo (642.898) Page 72
Date 02-02-2010
Validity All models with diesel engines
Reason for change
Reason for block
Complaint:
- Engine does not start at low outside temperatures (below - 15 Celsius).
- Engine running faults during driving operation.
- Engine diagnosis warning lamp lights up.
Note:
Fault code "Rail pressure too low" is stored in engine control unit.
Cause:
At low outside temperatures, the fluidity of the diesel fuel can be impaired due to separation of paraffin crystals (fuel gelling). This can cause
pumping difficulty due to clogging of the filter and/or fuel lines.
If the complaint is no longer present after the fuel system/vehicle warms up, this is an indication that fuel gelling is occurring.
2010 Mercedes Benz Truck Sprinter 2500 Crew (906.733) V6-3.0L DSL Turbo (642.898)
Page 73
2010 Mercedes Benz Truck Sprinter 2500 Crew (906.733) V6-3.0L DSL Turbo (642.898)
Page 74
Remedy:
Mix approved flow improver into diesel fuel.
The Specifications for Operating Fluids on the topic of "Winter operation with diesel fuels" must always be observed!
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