Chrysler 300C Maintenance Plans

The Chrysler 300C spans multiple generations from 2004-2023, with maintenance needs that vary by engine and fuel type. Use the selectors on this page to choose your 300C year range and engine to see the most relevant service intervals and operations.

Select your Chrysler model below to view the online service schedule for your specific engine.

2 models covered

Model Year Range Engines covered Fuel
300C 2004-2011 2004-2011 2.7 V6 Petrol (EER), 2.7 V6 Petrol (EES), 3.0 V6 CRD Diesel (EXL (642.982)), 3.5 V6, -LPG LPG,Petrol (EGG), 5.7 V8 HEMI Petrol (EZB), 5.7 V8 HEMI VVT MDS Petrol (EZH), 6.1 V8 SRT-8 Petrol (ESF) Diesel, LPG, Petrol
300C 2011-2023 2011-2023 3.0 CRD V6 Diesel (EXF), 3.6 V6 Petrol (ERB), 6.4 V8 SRT-8 Petrol (ESG), 6.4 V8 SRT-8 Petrol (ESG) Diesel, Petrol

Servicing by engine type

Petrol Chrysler 300C maintenance (V6 and V8)

Petrol 300C servicing commonly centres on engine oil and filter changes, with the correct cadence depending on your specific V6 or V8 (including HEMI and SRT-8 variants). Based on the interval signals for this family, oil changes may fall anywhere from roughly 3-12 months, and the distance can vary widely, so it is worth matching the schedule to your exact engine. Regular inspections for oil leaks, coolant condition and auxiliary drive belt wear are particularly important on higher-output engines. If your 300C uses a HEMI with cylinder deactivation (MDS) or a high-performance SRT-8 engine, sticking to the specified oil grade and service frequency helps protect valvetrain and timing components.

Diesel Chrysler 300C maintenance (3.0 CRD)

Diesel 300C models (3.0 CRD) benefit from consistent oil servicing and close attention to intake and emissions-related components. The family-wide oil-change range suggests there can be a big spread in time and distance intervals, so confirm the correct schedule for your model year and engine code. As mileage rises, it is sensible to keep on top of air filtration and check for boost and vacuum hose condition, as small leaks can affect driveability and economy. If your car is used for short journeys, extra care with servicing can help reduce issues linked to soot build-up and incomplete regeneration on emissions systems where fitted.

LPG Chrysler 300C maintenance

LPG-equipped Chrysler 300C variants should be maintained with the base petrol service requirements in mind, plus extra checks of the gas system installation and condition. Because LPG conversions and factory-fit arrangements can differ, the correct inspection points and consumables are best confirmed against the specific engine and model year shown in the selector. Keep an eye on ignition health (spark plugs, coil performance and wiring condition), as LPG can be less tolerant of weak ignition than petrol. It is also good practice to periodically inspect LPG lines, connections and mounting security for damage or corrosion, and address any fuel smell immediately.

Common service operations for Chrysler

The operations listed below reflect typical Chrysler 300C routine servicing and inspection items. Exact intervals can differ noticeably between generations and engines, so always follow the schedule shown for your selected vehicle.

Operation Typical interval Notes
Oil and filter changeSee selector aboveVaries by engine and recommended oil grade
Air filter30,000 to 60,000 kmMore often in urban or dusty driving
Cabin filter15,000 to 30,000 km or 1 yearAffects air conditioning and air quality
Brake fluid2 years (all models)Regardless of mileage
CoolantPer manufacturer (typically 5 years or 100,000 km)Check level and condition (colour, deposits) at every service
Front brake padsDepending on use (typically 30,000 to 60,000 km)Wear depends on driving style and load carried
Timing beltSee selector aboveInterval varies widely by engine
Spark plugs (petrol)30,000 to 60,000 kmPetrol engines only

Chrysler electronic diagnostics

If your Chrysler 300C shows a warning light or runs poorly, an OBD scan is a fast way to narrow the fault before replacing parts. Our Chrysler 300C OBD fault codes page explains common code families (powertrain P-codes for engine and gearbox, chassis C-codes for ABS and stability systems, body B-codes for comfort and security, and network U-codes for CAN communication). Use the codes alongside your service schedule to prioritise checks such as sensors, air leaks and electrical connections.

What the Chrysler manual covers

A maintenance plan tells you what to service and when, but carrying out the work correctly matters just as much on the Chrysler 300C. With the right guide you can follow model-specific procedures, tightening torques and step-by-step sequences for jobs like oil servicing, belt inspections and routine checks. Because 300C specifications vary across 2004-2011 and 2011-2023 vehicles and across petrol, diesel and LPG applications, choose a product matched to your exact engine and year range. That way you get the correct capacities, service points and any notes that apply to your particular 300C.

Chrysler manual