Technical Updates

Aftertreatment Diesel Particulate Filter (DPF) Temperature Stabilization Feature- QSOL Reference: TSB170058. The Aftertreatment Diesel Particulate Filter Temperature Stabilization feature has been released to improve the ability for low duty cycle and stop/go applications to actively regenerate the aftertreatment DPF during normal operation.

X15 CM2350 Injector Fault Codes 1139 through 1145- QSOL Reference: TSB170064. Injector faults caused by fueling adaption error in engine control module (ECM).

American Petroleum Institute (API) Categories CK-4 and FA-4 Diesel Engine Oil Introduction- QSOL Reference: TSB170065. This document announces the release of two new American Petroleum Institute (API) categories for diesel engine oils. These oils have been designed for use in on-highway and off-highway applications using ultra-low sulfur diesel (ULSD) fuel.

ISB6.7 CM2250 New Flywheel Housing for Daimler Buses North America Transit Bus with Hybrid Powertrain- QSOL Reference: TSB170062. A new and more robust flywheel housing is available and is to be installed if flywheel housing malfunctions.

ISX12 and ISX15 CM2350 Repeat Occurrences of Fault Code 3151, 5655, and/or 5868- QSOL Reference: TSB170068. Repeat shop visits for Fault Code 3151, 5655, and/or 5868 can be caused by sulfur poisoning of aftertreatment system caused by high sulfur content in fuel.