Infiniti G35 Transmission Repair Chicago
Expert Infiniti G35 transmission service in Chicago. Free computer diagnostic, lifetime warranty on rebuilds, all years.
Expert Infiniti G35 transmission service in Chicago. Free computer diagnostic, lifetime warranty on rebuilds, all years.
2003–2006 Gen 1 Sedan/Coupe: 5-speed automatic (RE5R05A) rear-wheel drive; optional 6-speed manual 2003–2007 Gen 1: Nissan ATTESA E-TS AWD on sedan models 2007–2008 Gen 2: 7-speed automatic (7AT / RE7R01A) rear-wheel drive and AWD; improved shift programming
G35 transmission diagnosis requires Nissan Consult III or equivalent for manufacturer-specific codes. RE5R05A solenoid valve body is the most common failure point — full replacement is recommended rather than individual solenoids due to cross-contamination. Fluid condition and metal particle content inspected. Torque converter shudder test at highway cruise. ATTESA AWD coupler is diagnosed separately — fluid replacement often resolves mild vibration; coupler replacement for confirmed mechanical failure. RE7R01A on Gen 2 models: solenoid E/F circuit is most common fault — valve body replacement addresses it.
RE5R05A and RE7R01A: Nissan Matic S ATF (or approved Matic K on 2007+); approximately 9 quarts; do not use Dexron as a substitute
Fluid service: same day; valve body/solenoid: 1–2 days; torque converter: 2–3 days; ATTESA service: same day; full rebuild: 4–6 days
"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."
"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."
"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."
On Gen 1 (5-speed): solenoid valve body wear causing erratic shifting and shudder. On Gen 2 (7-speed): solenoid E/F circuit fault causing limp mode. Both are well-documented and repair kits are widely available.
Yes — the ATTESA E-TS AWD transfer case has separate fluid that should be changed every 30,000–45,000 miles. Neglecting it leads to coupler wear and highway vibration. It's a separate service from the main transmission.
5-speed RE5R05A rebuild: $2,600–3,600. 7-speed RE7R01A: $2,800–3,900. Remanufactured units: $3,200–4,600 installed. Solenoid valve body replacement alone is $850–1,400 if the unit is otherwise healthy.
Nissan Matic S (2003–2006) or Matic K (2007+). Do not substitute Dexron — it is not compatible and will cause shudder and premature wear.
Not recommended for extended periods. Limp mode protects the transmission but limits function. Continued driving in limp mode may cause additional wear to clutch packs operating without normal pressure control.
Same-day appointments available. Honest estimates, no surprises. We've been doing this since 1987.
