The Audi 2.0 TDI CGL (specifically the CGLA/CGLB/CGLC series) is a highly refined 2.0-liter, four-cylinder common-rail diesel engine. Part of the EA189 family, the “CGL” generation represents a major leap forward from older pump-duse (PD) engines, offering a much smoother, quieter, and more efficient driving experience.
Type: 2.0L Inline 4-Cylinder, 16-Valve Diesel
Valvetrain: Double Overhead Cam (DOHC)
Induction: Variable Geometry Turbocharger (VGT) with Intercooler
Fuel System: Bosch Common Rail Direct Injection (1800 bar)
Power Output: Typically 120 kW to 130 kW (163–177 hp) at 4,200 rpm.
Torque: A stout 380 Nm available from 1,750 to 2,500 rpm.
Emission Standard: Euro 5 compliant.
Refinement: Unlike older diesel engines, the CGL series uses piezo injectors and a common-rail system, which virtually eliminates the harsh “clatter” at idle and during acceleration.
Fuel Efficiency: Known for exceptional long-distance economy, often achieving under 5.0L/100km on open highway runs in sedan bodies.
Dynamic Torque: The Variable Geometry Turbo (VGT) provides a very linear power delivery, making the car feel responsive even in higher gears at highway speeds.
Build Quality: Features a cast iron block for longevity and an aluminum alloy head to reduce weight over the front axle.
The CGL engine is the primary powerplant for several premium Audi models:
Audi A4 (B8) (2.0 TDI models, 2011–2015).
Audi A5 (Coupe and Sportback variants).
Audi Q5 (2.0 TDI Quattro models).
Audi A6 (C7) (Early 2.0 TDI models).
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