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Infiniti Q50 Transmission Repair β€” Chicago Transmission | Transmission Repair Chicago

Infiniti Q50 Transmission Repair Chicago

Expert Infiniti Q50 transmission service in Chicago. Free computer diagnostic, lifetime warranty on rebuilds, all years.

πŸ›‘οΈ Lifetime Warranty on Rebuilds
⭐ 4.9 Stars · 847 Reviews
πŸ“… Since 1987
πŸ”§ ASE Certified
πŸš› Free Towing within 15 Miles
Infiniti Q50 Transmission Repair β€” Chicago Transmission | Chicago IL
Expert Infiniti Q50 transmission service at Chicago Transmission since 1987.

Transmission History by Year β€” Infiniti Q50

2014–2017: 7-speed RE7R01A automatic (2.0T 4-cyl or 3.7L V6)
2018+: 7-speed RE7R01A (3.0T V6 twin-turbo)

Known Infiniti Q50 Transmission Problems

  • RE7R01A (all years): Solenoid pack failure β€” all 7 solenoids in one assembly. Failure causes P0750–P0770 range codes and shift quality degradation. Common at 80–120k miles
  • TCC shudder: 3.0T twin-turbo Q50 puts significant torque through the RE7R01A TCC β€” shudder at highway cruise develops
  • Valve body bore wear: Extended fluid intervals cause pressure regulation issues in the RE7R01A

Warning Signs β€” When to Bring It In

  • Harsh shifts or hunting β€” solenoid pack
  • Shudder at highway cruise β€” TCC
  • P0750–P0770 codes
  • Hesitation under hard acceleration

Our Repair Process

RE7R01A solenoid pack: replacement resolves most cases ($700–1,000). Full rebuild if clutch packs are damaged or valve body bore wear is extensive. 3.0T: more aggressive fluid service intervals.

Fluid Specification

Nissan Matic-W or Matic-S (confirm for year)

Repair Time Estimate

Solenoid: 1–2 days. Rebuild: 3–4 days.

Customer Reviews

What Chicago Drivers Say

β˜…β˜…β˜…β˜…β˜… 4.9 / 5.0
Based on 847 Google reviews
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"Honest diagnosis, fair price, and the repair was done right. Chicago Transmission has been my go-to for years. Wouldn't trust anyone else with my car."

Maria G. β€” Lincoln Park
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"The free diagnostic alone was worth the trip. They found the problem fast, gave me a written estimate, and completed the work on time. Exceptional service."

Chris D. β€” Lakeview
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"Family owned and it shows. They treated my car like it was their own. The lifetime warranty on my rebuild gives me total peace of mind. Highly recommend."

Janet K. β€” Wicker Park
Infiniti Q50 FAQ

Common Infiniti Q50 Transmission Questions

RE7R01A solenoid pack failure β€” the most common Q50 transmission issue. Pull codes; P0750–P0770 confirm it. $700–1,000 for solenoid replacement.

Likely TCC shudder from the high-torque twin-turbo application. Fluid exchange first, then converter assessment.

Every 30,000 miles, every 20,000 if you drive the 3.0T hard.

3–4 days.

The RE7R01A in the Q50 is an evolution of the RE7R01A in the G37. Same family, similar failure modes.

Ready to Fix Your Infiniti Q50?

Same-day appointments available. Honest estimates, no surprises. We've been doing this since 1987.

Car On Lift For Transmission Service β€” Chicago Transmission | Chicago IL
A customer vehicle raised on our lift for thorough transmission inspection at Chicago Transmission.
Transmission Parts And Components β€” Chicago Transmission | Chicago IL
Transmission components laid out for rebuild and inspection β€” we stock parts for all makes and models.
πŸ“ž (312) 555-0180 Free Diagnostic