2020 Mercedes Benz Truck ML 350 Technical Service Bulletin # LI47-30_P-049162 Date: 100318
Emissions - Variable DTC's/Driveability Concerns
Engine diagnosis warning lamp activated, fault code 0171, 0172, 0441, 0745, 0749, 1046, 1050, 1077, 1078, 1081, 1089, 1085, 2187 stored in
engine control unit
Topic number LI47.30-P-049162
Version 1
Design group 47.30 Evaporative emission control system
Date 03-18-2010
Validity Model 203 (CLC) with engine 271/272 vehicle production 10.07.2009 - 30.11.2009
Model 204 with engine 156/271/272 vehicle production 14.05.2009 - 30.11.2009
Model 207 with engine 272/273 vehicle production 16.05. 2009 - 30.11.2009
Model 171 with engine 113/272 vehicle production 15.05. 2009 - 30.11.2009
Model 230 with engine 156/272/273/275 vehicle production 01.06.2009 - 30.11.2009
2020 Mercedes Benz Truck ML 350 4MATIC (164.186) V6-3.5L (272.967) Page 280
Model 212 with engine 156/271/272/273 vehicle production 10.01.2009 - 30.11.2009
Model 219 with engine 156/272/273 vehicle production 10.09.2009 - 30.11.2009
Model 221 with engine 156/272/273/275 vehicle production 10.01.2009 - 30.11.2009
Model 216 with engine 156/273/275 vehicle production 10.01.2009 - 30.11.2009
Model 164 with engine 156/272/273 vehicle production 14.10.2009 - 31.12.2009
Model 251 with engine 156/272/273 vehicle production 14.10.2009 - 31.12.2009
Reason for change
Reason for block
Complaint:
Engine diagnosis warning lamp activated.
Complaints about engine running characteristics may arise.
Cause:
Magnetic short between armature and pole core due to calibration error at valve and tolerance deviation by supplying manufacturer.
This causes the purge valve to jam in the open state.
Remedy:
Installation of a purge valve as of production date 09T306, 09S306, or 09N306.
The production date is marked on the upper shell of the purge valve.
All stocks have been cleared out.
Symptoms
2020 Mercedes Benz Truck ML 350 4MATIC (164.186) V6-3.5L (272.967) Page 281
2020 Mercedes Benz Truck ML 350 4MATIC (164.186) V6-3.5L (272.967) Page 282
Control unit/fault code
2020 Mercedes Benz Truck ML 350 4MATIC (164.186) V6-3.5L (272.967) Page 283
Parts
Work units
2020 Mercedes Benz Truck ML 350 4MATIC (164.186) V6-3.5L (272.967) Page 284
2020 Mercedes Benz Truck ML 350 4MATIC (164.186) V6-3.5L (272.967) Page 285
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