Mercedes-Benz ML-Class Transmission Repair Chicago
Expert Mercedes-Benz ML-Class transmission service in Chicago. Free computer diagnostic, lifetime warranty on rebuilds, all years.
Expert Mercedes-Benz ML-Class transmission service in Chicago. Free computer diagnostic, lifetime warranty on rebuilds, all years.
W163 ML (1998–2005): 5G-Tronic (722.6 NAG1) 5-speed automatic. W164 ML (2006–2011): 7G-Tronic (722.9) 7-speed automatic. W166 ML (2012–2015): 7G-Tronic (722.9) 7-speed; rebranded GLE-Class from 2016.
ML-Class is Mercedes' most popular SUV platform historically. Conductor plate failures on W164/W166 are extremely common — we do several of these per week. W163 ML with the older 722.6 NAG1 needs solenoid pack service. 4MATIC transfer case chain wear should be checked during any transmission service.
722.9 (W164/W166): MB 236.14 or 236.15. 722.6 NAG1 (W163): MB 236.14. Transfer case: MB 235.0. Change every 40,000 miles.
Conductor plate: 1–2 days. NAG1 solenoid: 1–2 days. Full rebuild: 4 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 a W164 or W166 ML with 722.9, limp mode = conductor plate failure. Very common repair. $900–1,500 at our shop vs. $2,000–3,500 at a dealer.
W163 ML with NAG1 722.6 — solenoid pack failure. Often repairable for $700–1,100 without a full rebuild.
Could be 4MATIC transfer case chain wear — very common on high-mileage ML. We'll diagnose at the free diagnostic.
If the body and engine are in good shape, yes. W163 ML frames are solid and the M112 V6 and M113 V8 are durable engines.
We source OEM-equivalent conductor plates. For adaptation coding after installation, we use MB-compatible diagnostic software.
Same-day appointments available. Honest estimates, no surprises. We've been doing this since 1987.
