Here is a clear and suitable description for the Mercedes-Benz W204 1.8 (M271) 3.07 Rear Axle Gear — perfect for listing, parts catalog, or customer explanation:

Mercedes-Benz W204 1.8 M271 – 3.07 Rear Axle Gear Description

This is a rear axle differential assembly for the Mercedes-Benz W204 equipped with the 1.8L M271 Kompressor / CGI engine.

The unit features a 3.07 final drive ratio, designed to deliver smooth power transfer and stable rear-wheel drive performance.

Key Features:

• Model: Mercedes W204 C-Class
• Engine Compatibility: 1.8 M271 (Kompressor & CGI)
• Final Drive Ratio: 3.07
• Type: Rear Axle Differential (RWD)
• Construction: Heavy-duty cast housing with precision-cut internal gears
• Function: Transfers engine/gearbox output to rear wheels with optimal torque distribution
• Performance:
  
• Smooth low-noise operation
• Stable acceleration
• Good balance between fuel efficiency and power
• 
  
• Includes:
  
• Differential housing
• Ring & pinion set (3.07 ratio)
• Side bearings & output shafts (depending on unit condition)
• 
  

Suitable For:

• Mercedes-Benz C180 / C200 / C250 (selected W204 models using 3.07 ratio)
• Direct replacement for units with matching part number and ratio.

If you need, I can also prepare a short version, WhatsApp seller description, or part number list for the W204 differentials.