Mercedes-Benz transmission service in Snellville, GA — 7G-Tronic, 9G-Tronic, AMG Speedshift, and manual gearbox service. Fluid changes, diagnostics, solenoid repair, and full rebuilds with STAR-compatible diagnostics.
From a routine fluid service to a full diagnostic and rebuild — we handle every level of Mercedes transmission work.
Mercedes transmissions require STAR-compatible software for fluid level checks, adaptation resets, and fault code diagnosis. Without the right tools, a transmission fluid service on a Mercedes cannot be done correctly.
Mercedes labels many of their automatic transmissions as "lifetime fill" — but in practice, fluid service every 40,000–60,000 miles dramatically extends transmission life. Degraded fluid is the leading cause of Mercedes transmission solenoid and valve body failures. A fluid service is far less expensive than a rebuild.
Mercedes 7G-Tronic and 9G-Tronic transmissions have no dipstick. Fluid level is checked through a fill plug at a specific fluid temperature that must be monitored using STAR-compatible software. Without the scan tool, you cannot accurately check or set the fluid level — overfilling or underfilling both cause damage.
Watch for: harsh or delayed shifts, the transmission entering limp mode, a transmission warning on the COMAND display, shuddering during acceleration, fluid leaks under the vehicle, or unusual noises during gear changes. Any of these should be diagnosed promptly — transmission issues worsen quickly when ignored.
Most modern Mercedes-Benz vehicles use the 7G-Tronic (7-speed) or 9G-Tronic (9-speed) automatic transmission. AMG models use the Speedshift MCT (multi-clutch) or DCT (dual-clutch) depending on the model. Older models use the 5G-Tronic. Call us with your VIN and we'll confirm exactly what you have.
Often yes — especially if the transmission hasn't been serviced in a long time. Fresh fluid combined with a transmission adaptation reset can restore smooth shifting on many Mercedes automatics. We always diagnose first to confirm fluid service will address the issue before recommending it.
Yes. We service AMG Speedshift MCT and DCT transmissions across the full AMG lineup including C63, E63, S63, GLC63, GLE63, and GT models. AMG transmissions require specific fluid specs and adaptation procedures that differ from standard Mercedes automatics — we have the tools and experience for both.
Serving Snellville, Loganville, Grayson, Lawrenceville, and all of Gwinnett County.