Mercedes-Benz W205 M274 Automatic Gearbox | C-Class 7G/9G-Tronic Spares

Description

Restore seamless acceleration, precise gear ratios, and the smooth power delivery of your luxury luxury sedan with this high-grade Mercedes-Benz W205 M274 Automatic Gearbox (Complete Automatic Transmission Assembly). Specifically sourced and verified for the W205 C-Class platform running the M274 2.0-litre turbocharged petrol engine (produced from 2014 to 2021), this genuine longitudinal transmission is the definitive replacement for vehicles suffering from severe internal clutch slippage, harsh gear engagement, torque converter shudder, or permanent transmission limp-mode lockouts.

The W205 automatic gearbox functions as the complex mechanical and electronic brain that routes your engine’s torque straight to the rear drive axle. Depending on your specific model year and trim package, your M274 engine will be mated to either the highly refined 7G-Tronic Plus (7-speed) or the advanced, ultra-efficient 9G-Tronic (9-speed) automatic transmission system.

Both variations integrate an advanced internal valve body and an electronic conductor plate module ($TCM$) submerged directly in the transmission fluid. Under South African driving conditions, these high-tech gearboxes operate under massive thermal stress. If regular transmission fluid flushing routines are ignored, fine metallic friction debris can contaminate the hydraulic solenoids, leading to erratic shift patterns, delayed engagement into Drive ($D$) or Reverse ($R$), or a total failure where the car locks itself into a single safety gear.

Worse yet, mechanical clutch pack wear or torque converter seal degradation can cause the engine to rev freely without transferring power, accompanied by $TCU$ diagnostic fault codes. Swapping your damaged unit out with this workshop-verified, clean factory replacement assembly instantly eliminates transmission hunting and restores factory gear-shifting characteristics.

Manufactured with a high-rigidity, lightweight die-cast aluminum outer casing, this complete transmission unit drops directly onto the factory rear-wheel-drive subframe mounting points. Trust TP German Auto Spares for fully verified, workshop-tested Mercedes-Benz engine components, gearboxes, differentials, and mechanical drivetrain spares that keep your C-Class running smoothly on the road.

Key Features:

• Vehicle & Engine Compatibility: Purpose-built for Mercedes-Benz W205 C-Class models (C180, C200, C250, C300) running the M274 1.6L or 2.0L Turbo engine configurations.

• 7G-Tronic / 9G-Tronic Identification: Available in both 7-speed and 9-speed variants to align precisely with your factory production specification (exact part number and transmission code matched upon ordering).

• Inspected Torque Converter: Includes the factory torque converter assembly, thoroughly checked for fluid integrity, input shaft spline health, and balanced rotation.

• Diagnostic Checked Solenoids: Conductor plate pins and shift solenoids are electronically scanned via diagnostic scanners to ensure clean resistance values and no current shorts.

• Sealed Fluid Sump Pan: Lower oil pan and drain plugs are checked to ensure absolute zero fluid seepage or cracking along the seal lines.

• Condition: Extensively workshop-inspected and spin-tested; verified for clean internal gear train engagement, smooth manual output shaft rotation, and completely uncracked structural casings.