Here is the engine and gearbox description for the Nissan Sylphy KG11 2.0L MR20DE:

🔧 

Engine: MR20DE (2.0L DOHC Inline-4)

• Engine Code: MR20DE
• Displacement: 1997 cc (2.0L)
• Fuel System: Sequential Multi-Point Fuel Injection (EFI)
• Valve Train: DOHC, 16 valves with CVTC (Continuous Valve Timing Control)
• Bore x Stroke: 84.0 mm x 90.1 mm
• Compression Ratio: 9.7:1
• Max Power: ~133–138 hp @ 5200–5600 rpm
• Max Torque: ~191 Nm @ 4400 rpm
• Fuel Type: RON95 unleaded petrol
• Cooling System: Water-cooled
• Drive-by-Wire throttle system

⚙️ 

Transmission / Gearbox

There are two common gearbox options for the Sylphy KG11 MR20DE:

1. 

RE0F10A CVT (Continuously Variable Transmission)

• Type: Xtronic CVT
• Gear Ratios: Stepless, electronically controlled
• Features:
  
• Adaptive Shift Control
• Smooth, fuel-efficient driving
• Chain-driven belt system
• Integrated transmission control unit (TCU)
• 
  
• Cooling: External CVT cooler (in some variants)

2. 

RS6F52H 6-Speed Manual Transmission (rare in some markets)

• Type: 6-speed manual
• Mostly found in base models or select regions
• Clutch: Hydraulic single-plate dry clutch

🔩 Additional Notes:

• The MR20DE is shared with models like the Nissan X-Trail (T31), Sentra, and Qashqai.
• The CVT transmission requires NS-2 or NS-3 CVT fluid (depending on model year).
• The KG11 is a FF layout (front-engine, front-wheel drive).
• Common parts: ignition coil, CVTC solenoid, engine mounts, and CVT step motor.

Let me know if you need wiring diagrams, ECU pinouts, or part numbers.