One problem related to fuel hoses lines/piping and fittings has been reported for the 2003 Chrysler 300M. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Chrysler 300M based on all problems reported for the 2003 300M.
Engine would not start due to faulty fuel relay, subsequent check engine indicator lamp, show faulty fuel system. To date, 4 attempts to correct problem by the manufacturer authorized servise center has not corrected faulty fuel system.