Infiniti G37 / Q40 Transmission Repair Chicago

Expert Infiniti G37 / Q40 transmission service in Chicago. Diagnosis-first inspection, Written warranty terms on rebuilds, all years.

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Infiniti G37 / Q40 Transmission Repair Chicago service at Chicago Transmission in Lincoln Park

Transmission History by Year - Infiniti G37 / Q40

2008 - 2013: RE7R01A 7-speed automatic (3.7L V6) - Coupe, Sedan, Convertible
Manual: 6-speed Tremec (G37S models)

Known Infiniti G37 / Q40 Transmission Problems

RE7R01A (all years): Solenoid pack failure at 80 - 120k miles - same unit as Q50. Performance use accelerates solenoid wear
TCC: G37 drivers tend to be more aggressive - converter clutch wear more common than in family sedan applications
Manual 6-speed: Input shaft bearing noise on high-mileage performance G37

Infiniti G37 transmission inspection - Chicago Transmission Diagnostic appointment

Fluid Specification

Nissan Matic-W (AT) or MT-90 (manual)

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.

Transmission diagnostics for Infiniti G37 at Chicago Transmission North Side

Repair Time Estimate

2 - 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 - Infiniti G37 / Q40

RE7R01A solenoid: $700 - 1,000
RE7R01A rebuild: $2,000 - 2,800
Manual rebuild: $1,000 - 1,600
Call for exact quote.

Call for exact quote on your specific year and engine.

FREE Diagnostic Appointment -> (312) 626-8759

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.

Request a FREE Diagnostic Appointment Call (312) 626-8759

Infiniti G37 / Q40 FAQ