2004 Chrysler 300M Problems: 4 Known Issues
2004 model year · 650+ owner reports · Updated November 2026
According to Au7o's analysis of 650+ owner reports, the 2004 Chrysler 300M has 4 documented known issues, with 2 rated critical. The most serious are 3.5L V6 Engine Oil Sludge and Consumption ($50-$4,500 repair) and 42LE Automatic Transmission Failure ($200-$3,500 repair). The most commonly reported issue is 3.5L V6 Engine Oil Sludge and Consumption with 250 owner reports. Across all issues with published estimates, repair costs range from $50 to $4,500. DIY maintenance guides at au7o.io.
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All 4 Known Issues
NHTSA Recalls8 recalls
EXTERIOR LIGHTING
SABERSPORT IS RECALLING 16,270 COMBINATION CORNER AND BUMPER LAMP ASSEMBLIES OF VARIOUS PART NUMBERS SOLD FOR USE AS AFTERMARKET EQUIPMENT FOR VARIOUS PASSENGER VEHICLES. THESE HEADLAMPS FAIL TO CONFORM TO THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, "LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT." THESE LAMPS DO NOT CONTAIN THE REQUIRED AMBER SIDE REFLECTORS.
LATCHES/LOCKS/LINKAGES:HOOD:LATCH
ON CERTAIN PASSENGER VEHICLES, AN INTERNAL HOOD LATCH COMPONENT MAY HAVE BEEN MANUFACTURED WITH A CRACK, WHICH COULD PROPAGATE AND BREAK, ALLOWING THE PRIMARY/SECONDARY LATCH SPRING TO DISENGAGE.
SEATS:FRONT ASSEMBLY:RECLINER
ON CERTAIN PASSENGER VEHICLES, SEAT BACK RECLINER BOLT BREAKAGE CAN OCCUR RESULTING IN THE SEAT BACK RECLINING UNEXPECTEDLY.
STRUCTURE:FRAME AND MEMBERS
VEHICLE DESCRIPTION: CERTAIN PASSENGER VEHICLES (NON-SUNROOF ONLY) FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 201, "OCCUPANT PROTECTION IN INTERIOR IMPACT."
CHILD SEAT
VEHICLE DESCRIPTION: CERTAIN PASSENGER VEHICLES, PICKUP TRUCKS AND SPORT UTILITY VEHICLES FAIL TO COMPLY WITH THE REQUIREMENTS OF FMVSS NO. 225, "CHILD RESTRAINT ANCHORAGE SYSTEMS." SOME OF THE OWNER'S MANUALS FOR THESE VEHICLES ARE MISSING INSTRUCTIONS THAT PROVIDE A STEP-BY-STEP PROCEDURE, INCLUDING DIAGRAMS, FOR PROPERLY ATTACHING A CHILD RESTRAINT SYSTEM'S TETHER STRAP TO THE TETHER ANCHORAGE.
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Frequently Asked Questions
What are the most common Chrysler 300M problems?
According to Au7o's analysis of 650+ owner reports, the 2004 Chrysler 300M has 4 documented issues. The most frequently reported are: 3.5L V6 Engine Oil Sludge and Consumption, 42LE Automatic Transmission Failure, Power Steering Rack Leaks and Internal Wear. Of these, 2 are rated critical and should be addressed promptly.
Is the Chrysler 300M reliable?
The 2004 Chrysler 300M has 4 known issues documented across 650+ owner reports. 2 issues are rated critical: 3.5L V6 Engine Oil Sludge and Consumption and 42LE Automatic Transmission Failure. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
How much does it cost to fix common Chrysler 300M problems?
Repair costs for known Chrysler 300M issues range from $50 to $4,500, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, 3.5L V6 Engine Oil Sludge and Consumption, typically costs $50-$4,500 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What is the 1999-2004 Chrysler 300M 3.5L V6 Engine Oil Sludge and Consumption?
The 3.5L SOHC V6 in the 300M is susceptible to oil sludge formation, though less severely than the 2.7L. The high-performance tuning of the 3.5L in the 300M generates more heat than in other applications, and the oil drain-back passages in the heads can become restricted by sludg… Repairs typically run $50-$4,500. Severity: high.
What is the 1999-2004 Chrysler 300M 42LE Automatic Transmission Failure?
The 42LE 4-speed automatic transmission in the 300M is prone to premature failure, including solenoid pack issues, torque converter clutch failure, and internal clutch pack wear. The high torque output of the 3.5L V6 stresses the transmission beyond its design limits. Harsh shift… Repairs typically run $200-$3,500. Severity: high.
What is the 1999-2004 Chrysler 300M Power Steering Rack Leaks and Internal Wear?
The power steering rack on the 300M develops leaks from the rack seals, typically on the driver's side inner tie rod boot area. Power steering fluid leaks onto the subframe and can contaminate the front motor mount. The rack seal design is prone to failure due to heat exposure fr… Repairs typically run $400-$900. Severity: medium.
What is the 1999-2004 Chrysler 300M Power Steering Pump Whine and Leak?
The power steering pump develops a whining noise and leaks fluid from the shaft seal or reservoir. The whine is most noticeable at low speed turns and on cold mornings. Low fluid from leaks accelerates pump wear. Repairs typically run $200-$500. Severity: medium.
Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.