2011 CHRYSLER 300

5.7L V8 HemiRWDAUTOMATICgas
5-Year Cost of Ownership
$31,798 maintenance + known platform issues
~$6,360/yr · 530¢/mile equivalent · $5,159 maintenance + $6,189 expected platform issues
Compare this engine
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3.6L V6
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3.6L V6 Pentastar
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5.7L V8 HEMI
Common Problems & Known Issues

The 2011 Chrysler 300 rides on the LX platform with Mercedes-derived bones but Chrysler execution. Pentastar V6 models are generally reliable; the 5.7 Hemi variants see notable lifter and multi-displacement system (MDS) failures, and all trims share the W5A580/NAG1 transmission that can develop cooler and solenoid issues.

5.7 Hemi MDS Lifter Failure

Common · high severity
Typical onset: 70,000-130,000 mi
Symptoms: Loud ticking or tapping at idle, especially cold start, Check engine light with P0300-series misfire codes, Loss of power on affected cylinders, Metal shavings in oil filter
Fix: Collapsed lifters on cylinders 1, 4, 6, or 7 most common due to MDS system. Requires head removal, lifter replacement, and often camshaft inspection. Some shops replace all 16 lifters preventively. Book time 12-16 hours depending on parts access and cam condition. MDS delete kits available but require tuning.
Estimated cost: $3,200-5,800

NAG1/W5A580 Transmission Oil Cooler Failure

Common · high severity
Typical onset: 80,000-140,000 mi
Symptoms: Milky or pink transmission fluid (coolant contamination), Transmission slipping or delayed engagement, Overheating transmission temp gauge, Engine coolant level drops without external leaks
Fix: Internal cooler in radiator fails, allowing cross-contamination of ATF and coolant. Requires transmission flush (often multiple), new radiator with integral cooler, external auxiliary cooler install recommended, and possible valve body replacement if contamination was severe. Book time 8-12 hours including flushes. Catch it early or face full transmission rebuild.
Estimated cost: $1,800-4,500

TIPM (Totally Integrated Power Module) Failure

Occasional · high severity
Symptoms: Fuel pump cycling on and off randomly, no-start, Wipers or windows operating on their own, Multiple warning lights with no stored codes, Horn honking or headlights flashing without input
Fix: Chrysler's infamous TIPM handles all body/electrical functions. Internal relay failures cause bizarre electrical gremlins. Dealer-level diagnosis required; unit is not repairable, only replaceable. Must be programmed to VIN. Book time 2-3 hours plus programming. Extended warranty recall on some units (check VIN), otherwise owner pays.
Estimated cost: $800-1,400

Front Differential Pinion Seal Leak (AWD models)

Common · medium severity
Typical onset: 60,000-110,000 mi
Symptoms: Gear oil drips on garage floor near front diff, Low fluid causes whining or growling from front axle, Visible oil coating on front differential housing
Fix: Pinion seal hardens and leaks. Requires driveshaft removal, seal replacement, and diff fluid refill. Simple job but messy. Book time 2.5-3.5 hours. Check for damage to pinion bearing if leak was severe/long-term. Some techs replace front output shaft seal on transfer case at same time as preventive.
Estimated cost: $400-700

Alternator Voltage Regulator Failure

Occasional · medium severity
Typical onset: 90,000-150,000 mi
Symptoms: Battery warning light intermittent or constant, Voltage gauge fluctuates wildly (below 12V or above 15V), No-start after short trips (battery not charging), Dimming headlights at idle
Fix: Internal regulator in alternator fails; affects both V6 and V8 models. Alternator replacement required (rebuilds rarely last). Serpentine belt routing makes access moderate. Book time 1.5-2 hours. NHTSA recall covered some 2011 units for overcharging (check VIN). Test battery and connections before replacing alt.
Estimated cost: $450-750

Water Pump Leak (3.6L Pentastar)

Occasional · medium severity
Typical onset: 80,000-120,000 mi
Symptoms: Coolant weeping from water pump weep hole, Squealing or grinding noise from front of engine, Overheating under load or in traffic, Visible coolant residue below pump area
Fix: Early Pentastar water pumps develop seal and bearing failures. Pump is timing-cover mounted; requires accessory removal and coolant drain. Book time 3-4 hours. Replace thermostat and serpentine belt at same time for labor savings. Use Mopar or equivalent OE pump; aftermarket quality inconsistent on this engine.
Estimated cost: $550-950
Owner tips
  • On 5.7 Hemi models, disable MDS with a tuner or use 89-octane fuel and frequent oil changes (every 3,000-4,000 mi) to extend lifter life
  • Check transmission fluid color every oil change; pink or milky = immediate cooler inspection
  • Install an auxiliary transmission cooler if towing or in hot climates; radiator-mounted cooler is undersized
  • TIPM issues often appear after battery disconnect or jump-start; cycle key on/off 3x before claiming failure
  • AWD models: inspect front diff fluid level at every service; low fluid ruins the unit quickly
The 3.6L V6 RWD 300 is a solid used buy with typical maintenance; avoid high-mileage 5.7 Hemi models unless lifters and transmission cooler have been addressed.
AI-assisted summary drawn from NHTSA recall data, our labor-times database, and platform knowledge. Not a substitute for a pre-purchase inspection on a specific vehicle.
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