Brand Name:
GLA220
Model Number:
724.1;8G-DCT
Overview: MERCEDES-BENZ's transverse 8-speed dual-clutch transmission with integrated electromechanical actuation.
Key Features:
Wet Clutch System: Dual 7-plate clutch packs (0.5mm runout tolerance)
Torque Capacity: 400Nm (optimized for M260 2.0L turbo)
Mechatronic Unit: Direct-mounted TCU with predictive shift strategy
Failure Modes:
Clutch Contamination: Degraded MB 236.21 fluid causes shudder (P0730)
Valve Body Wear: Shift solenoids stick in cold (delayed 1-2 shifts)
Input Shaft Bearing Failure: Metal debris in fluid (whining noise)
Critical Service Notes:
Fluid Specification: MB 236.21 ONLY (5.8L capacity)
Adaptation Reset: Required after clutch service (XENTRY mandatory)
Clutch Runout Check: >0.3mm requires pack replacement
Pro Tip: Monitor "clutch adaptation values" in XENTRY – exceeding ±15% indicates wear.
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