Mercedes-Benz C-Class Transmission Repair Chicago
Expert Mercedes-Benz C-Class transmission service in Chicago. Free computer diagnostic, lifetime warranty on rebuilds, all years.
Expert Mercedes-Benz C-Class transmission service in Chicago. Free computer diagnostic, lifetime warranty on rebuilds, all years.
2001–2007: Mercedes 722.6 5G-Tronic 5-speed (W203) 2008–2014: Mercedes 722.9 7G-Tronic 7-speed (W204) 2015–2021: Mercedes 7G-Tronic Plus (W205) 2022+: 9G-Tronic 9-speed (W206)
722.6: solenoid pack replacement or valve body rebuild. 722.9 conductor plate: replacement $600–950 if clutches are healthy. Full rebuild if clutch damage from extended limp-mode driving.
722.6: MB 236.12 722.9: MB 236.14 Change every 40,000 miles
Conductor plate: 1–2 days. Rebuild: 3–4 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."
Multiple solenoid codes at once (P0740, P0750, P0755, P0760) almost always mean conductor plate failure — not multiple solenoid failures. The conductor plate is a single repair.
If caught early (before clutch damage from running in limp mode), conductor plate alone is sufficient. We'll inspect clutch condition during diagnosis.
722.6 uses MB 236.12; 722.9 uses MB 236.14. Using the wrong fluid accelerates failure.
3–4 days.
If you're close, carefully yes — drive gently. If you're more than a few miles away, tow it. We offer free towing within 15 miles with repair over $500.
Same-day appointments available. Honest estimates, no surprises. We've been doing this since 1987.
