Fuel System - 'Clean Fuel Filter' Mssg. And DTC's Stored

2010 Mercedes Benz Truck GL 350 BLUETEC (164.825) V6-3.0L DSL Turbo (642.820)
Vehicle: All Technical Service Bulletins
Fuel System - 'Clean Fuel Filter' Mssg. And DTC's Stored
Combination message: "Clean fuel filter" as well as fault code (FC) 162500, P226997 or 171600 stored in engine control unit
Topic number LI47.20-P-054958
Version 1
Design group 47.20 Fuel pump, filter
Date 11-14-2012
Validity All cars with OM642 and OM651
Reason for change Steps reformulated in remedial action section
Complaint: Combination message in IC: "Clean fuel filter" is displayed.
The fault code 162500 (water level message - Delphi) or P2226997 (water level message - Bosch) or 171600 (filter load - Bosch) Cause: -
Remedy:
With FC 162500 or FCP226997:
1. Drain water from the fuel filter: Drain off approx. 200 ml (not possible with Q16 - the filter must be changed in this case).
2. After approx. 1 min, at least 50 ml of water must settle at the bottom of the measuring cup - in this case, the message was justified - delete the
FC and hand over the vehicle to the customer.
3. If no water settles in the measuring cup, the message was due to incorrect detection.
4. Check the contacts at the fuel filter/glow time control unit and cable set for moisture.
5. Delete the FC and run the engine at idle for 2 min. Please observe whether the combination message is set again.
6. If the combination message does not occur, please hand the vehicle back over to the customer.
7. If the combination message is set again, please change the fuel filter.
8. Delete the FC and run the engine at idle for 2 min. Please observe whether the combination message is set again.
9. If the combination message is set again, please replace the glow time control unit.
With FC171600:
1. Measure the pressure drop at the filter using 2 pressure gauges.
2. If the pressure drop is greater than 0.7 bar, change the fuel filter.
Symptoms
2010 Mercedes Benz Truck GL 350 BLUETEC (164.825) V6-3.0L DSL Turbo (642.820)
Control unit/fault code