Expert Infiniti QX30 transmission service in Chicago. Free computer diagnostic, 2-year / 24,000-mile warranty on rebuilds, all years.
We will contact you as soon as a service member is available by call, text, or email.
2017 - 2019: 7-speed dual-clutch (7DCT) with 2.0T turbocharged 4-cylinder; FWD or AWD AWD: 4MATIC-style all-wheel drive (based on Mercedes-Benz GLA platform) Production ended 2019 - discontinued in US market Note: QX30 is a rebadged Mercedes-Benz GLA with Infiniti cosmetics; DCT is shared
QX30 7DCT shares Mercedes-Benz GLA drivetrain hardware - diagnosis and repair procedures closely follow Mercedes DCT protocols. Software version check is always first - calibration updates address shudder. DCT fluid replacement with Infiniti/Mercedes-specified DCT fluid resolves contamination-based issues. Physical clutch pack inspection follows if software and fluid work doesn't resolve symptoms. The QX30 is no longer in production, but DCT parts remain available through the shared Mercedes-Benz parts network. Low-speed hesitation in parking is partially inherent to DCT design at very low speeds.
Infiniti/Mercedes-Benz DCT fluid (specific to DCT - do not use standard ATF); approximately 4 - 5 quarts
Software update: same day; fluid service: same day; DCT clutch pack: 2 - 3 days; full rebuild: 4 - 6 days
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.
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.
Fluid condition, leak location, and driving distance matter. If the vehicle is slipping badly or overheating, towing may be the safer next step.
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.
Mechanically yes - the QX30 is built on the Mercedes-Benz MFA platform and shares the DCT, engine, and AWD system. The QX30 has Infiniti interior and exterior styling over Mercedes mechanicals.
DCTs use dry or wet clutch packs instead of a fluid coupling - they engage mechanically at low speed, which can produce a jerk or judder that a traditional torque converter absorbs more smoothly. Software updates minimize this, but some DCT behavior at very low speed is inherent to the design.
Yes - parts are available through the Mercedes-Benz supply chain since the DCT is shared hardware. We have access to DCT rebuild kits, clutch packs, and solenoids.
With regular fluid changes every 40,000 - 50,000 miles and avoiding aggressive launch behavior, QX30 DCT units can reach 100,000 - 120,000+ miles. City driving in Chicago is harder on DCTs than highway use.
It depends on the vehicle's condition and repair scope. A software update or fluid service ($130 - 200) is always worthwhile. A full DCT rebuild ($2,400 - 3,400) makes sense if the vehicle is otherwise in excellent condition.
Same-day appointments available. Honest estimates, no surprises. We've been doing this since 1987.
