AUDI MOTOR 2.0 TDi CNH CNHA 140KW A4 A5 A6 Q5 NEU KOMPLETT

Audi 2.0 TDI (140kW / 190PS), the motor code CNHA (often referred to interchangeably with CNH) represents the “Clean Diesel” / “Ultra” generation of the EA288 engine series.

If you are looking for a “NEW KOMPLETT” (New Complete) engine in 2026, it is important to distinguish between a factory-new unit and a “0 km” remanufactured unit, as Audi has largely transitioned to newer engine generations (like the EA288 Evo).

1. Engine Specifications (CNHA)

2. Compatibility (A4, A5, A6, Q5)

The CNHA motor was primarily used in the following models between 2013 and 2018:

• Audi A4 (B8/B9): 2013–2015 (B8) and early B9 models.

• Audi A5 (8T/8F): 2013–2017 (Sportback, Coupe, Cabrio).

• Audi A6 (C7): 2013–2018 (Ultra models).

• Audi Q5 (8R): 2013–2017.

3. “Komplett” vs. “Teilmotor”

When purchasing a “Complete” engine, the package should include the high-value peripherals that are usually stripped from “bare” blocks:

• Fuel System: High-pressure pump (CP4) and 4x Piezo Injectors.

• Aspiration: Turbocharger (VTG) and intake manifold.

• Cooling: Water pump and oil cooler assembly.

• EGR/DPF: The Exhaust Gas Recirculation (EGR) valve and cooling module.

4. Known Weaknesses & Why to Buy New/Refurbished

If you are replacing your old CNHA, it is likely due to one of these common failure points:

1. Coolant Pump/Thermostat: The plastic housings are prone to hairline cracks, leading to slow leaks and overheating.

2. AdBlue System: Sensor or heater failures in the SCR system often trigger a “No Start in XXX km” countdown.

3. Oil Pressure: High-mileage units can suffer from oil pump drive wear.

   • Tip: High-end remanufactured units often include an “Upgrade Oil Pump” to prevent future seizures.

5. Installation Advice

• AdBlue Adaptation: After installing a new engine, the SCR/AdBlue system must be reset and adapted via VCDS or ODIS to ensure the emissions cycle restarts correctly.

• Injector Coding: The IMA/ISA codes on the new injectors must be programmed into the Engine Control Unit (ECU) for smooth idling and correct fuel trim.

• Timing Belt: Even on a “New” engine, verify the manufacture date of the timing belt. If the engine has been sitting as “New Old Stock” (NOS) for 5+ years, consider replacing the belt before installation.