MAN — Man MBE 900 Engine 2007 Operator's Guide

TROUBLESHOOTING 130 All information subject to change without notice. (Rev. 04/08) DDC-SVC-MAN-0040 0704 Copyright © 2008 DETROIT DIESEL CORPORATION Problem—The Engine Exhaust Is Blue Cause Remedy The engine oil level is too high (engine oil is reaching the combustion chamber). Adjust the oil level, and then have the oil level checked by an authorized dealer. The turbocharger is leaking oil. Have an authorized repair facility replace the turbocharger The valve stem seals are loose or damaged. Have an authorized repair facility replace the seals. The piston rings are worn. Have an authorized repair facility replace the piston rings.

Problem—Engine Brake Performance Is Poor Cause Remedy The engine brake control switch is damaged. Replace the switch The exhaust brake is not operating properly. Have an authorized repair facility check the operation of the valve. The constant-throttle valves are malfunctioning. Bring the vehicle to an authorized repair facility for service. Components of the MCM and/or CPC are damaged. Bring the vehicle to an authorized repair facility for service. Problem—Cruise Control Is Not Working Cause Remedy One or more of the cruise control switches are damaged. Replace the damaged switch. Components of the MCM and/or CPC are damaged or not working properly.

Bring the vehicle to an authorized repair facility for service.