Chrysler 300 Transmission Repair Chicago

Q: My 300 V6 shows multiple transmission codes. Is that the conductor plate?

If you're seeing P0740 , P0750, P0755 together on a W5A580, yes - conductor plate failure. One repair, not multiple solenoids.

Expert Chrysler 300 transmission service in Chicago. Free computer diagnostic, 2-year / 24,000-mile warranty on rebuilds, all years.

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Torque converter service for Chrysler 300 - Chicago Transmission auto repair

Transmission History by Year - Chrysler 300

2005 - 2010: 5-45RFE or 545RFE 5-speed (2.7L V6, 3.5L V6, 5.7L Hemi)
2011 - 2014: W5A580 Mercedes 5G-Tronic (V6) or 8HP70 ZF (3.6L/5.7L)
2015+: ZF 8HP70 8-speed (all engines)

Chrysler 300 transmission inspection - Chicago Transmission free diagnostic

Known Chrysler 300 Transmission Problems

545RFE (2005 - 2010): Governor pressure solenoid failure (P0745) - most common 300 transmission complaint in this era
ZF 8HP70 (2011+): Valve body solenoid wear identical to Dodge Charger application - same platform, same failure
W5A580 (2011 - 2014 V6): Conductor plate failure - same as Mercedes 722.6 applications

Chrysler 300 transmission rebuild on the workbench - Chicago Transmission 1987

Warning Signs - When to Bring It In

Limp mode - solenoid (545RFE)
Harsh 1-2 shift or hunting - ZF 8HP solenoid
Multiple solenoid codes - W5A580 conductor plate
P0745 governor code
Delayed kickdown on freeway

Rebuilt Chrysler 300 transmission components - Chicago Transmission 2-year / 24,000-mile warranty

Our Repair Process

545RFE: governor solenoid replacement first ($350 - 550). ZF 8HP: valve body repair or rebuild. W5A580: conductor plate replacement. All platforms share similar approach to the Charger/Challenger.

Transmission fluid service for Chrysler 300 - Chicago Transmission Lincoln Park

Fluid Specification

545RFE: ATF+4 ZF 8HP: ZF Lifeguard 8 W5A580: MB 236.12

Verify exact spec on the dipstick label or owner's manual before fill. Recommended change interval: every 60,000 miles for normal driving, 30,000 miles under severe service (towing, stop-and-go, hot climates). Pan service typically takes 6 - 8 quarts; a full fluid exchange takes 10 - 14 quarts depending on cooler-line capacity.

Repair Time Estimate

Solenoid: 1 day. Rebuild: 3 - 4 days.

Fluid service and inspection complete the same day. Solenoid or sensor replacement: 1 day. Torque converter or seal repair: 2 - 3 days. Full rebuild with road test: 4 - 6 days. Time estimates assume parts in stock - call (312) 626-8759 to verify availability for your specific vehicle.

Pricing - Chrysler 300

545RFE governor solenoid: $350 - 550
545RFE rebuild: $1,600 - 2,200
ZF 8HP valve body: $900 - 1,400
ZF 8HP rebuild: $2,500 - 3,200
W5A580 conductor plate: $650 - 1,000
Call for exact quote.

Call for exact quote on your specific year and engine.

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Common Repair Conversations

What We Help You Sort Out

Every vehicle needs diagnosis before anyone can promise a repair path. These are the situations we help organize before you decide what to do next.

Slipping or delayed engagement

Tell us when it happens, whether reverse still works, and if warning lights are on. A scan and fluid check come before guessing at a rebuild.

Leaks, burning smell, or overheating

Fluid condition, leak location, and driving distance matter. If the vehicle is slipping badly or overheating, towing may be the safer next step.

Rebuild, replacement, or targeted repair

A failed solenoid, valve body, converter, or internal clutch problem can lead to very different repair paths. The goal is a clear diagnosis and written estimate.

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Chrysler 300 FAQ