Mercedes W140 C140 Rear Headrest Motor Gear Repair

Replacement gear set for repairing the electric rear headrest mechanism in Mercedes-Benz W140 (S-Class) and C140 (CL-Class).

Original plastic gears often crack or wear out, causing failure of the headrest system. This model allows restoring functionality without replacing the entire motor.

Features:

• Accurate replacement geometry
• Direct fit for W140 / C140
• Restores headrest operation
• Designed for FDM printing

Printing:

• Layer height: 0.1–0.2 mm
• Infill: 100%
• Orientation: teeth facing up

Notes:

• Check fit before final assembly
• Lubrication recommended
• Use durable filament

Filament:

• Best: Nylon (PA6 / PA12)
• Alternative: PA-CF, ABS, ASA
• Minimum: PETG
• Avoid: PLA