Audi / VW Group 2.0L TDI CR Engine – Complete CAH / CAG Unit for Multiple Models

Complete, Low-Mileage 2.0L TDI Common Rail Engine for Audi, VW, and Seat Vehicles.

This listing is for a complete, original VW Group 2.0L TDI common rail diesel engine, engine code CAH / CAG / CAHA (143-170 HP variants), removed from a 2011 donor vehicle with a low 118,037 km (~73,344 miles). This fully assembled long block is the ubiquitous and highly regarded four-cylinder diesel, providing a direct-fit core for engine replacement in a wide range of Audi, Volkswagen, and Seat models. An ideal solution for a cost-effective and reliable repair.

Product Overview & Core Specifications

• Engine Code: VW/Audi 2.0L TDI CR (CAH / CAG / CAHA series)

• Displacement: 2.0L I4 Turbo Diesel (Common Rail)

• Power Output: 143 HP, 170 HP, or variable – Confirm specific output with seller

• Mileage: 118,037 km (~73,344 mi) – Documented Low

• Year: 2011

• Condition: Used, Complete Long Block / Dressed Assembly

• Key Feature: Common rail injection with DPF (Diesel Particulate Filter) and EGR systems.

Vehicle Compatibility & Fitment

• Primary Applications:

  • Audi A4 (B8), A5 (8T), A6 (C6), Q5 (8R) – Specific models/years with the 2.0 TDI.

  • Volkswagen Passat (B6), Tiguan (5N)

  • Seat Exeo (3R)

• Power Variant & Electronics: The engine’s output is determined by the Engine Control Unit (ECU) and turbo/injector hardware. The CAH/CAG family covers multiple outputs. For a seamless swap:

  • Use your original vehicle’s ECU and wiring harness to maintain the correct power output, DPF strategy, and all vehicle functions.

  • The engine’s hardware (injector codes, turbo part number) should be compatible with your original ECU’s software.

• Model-Specific Ancillaries: Items like engine mounts, alternator brackets, vacuum pumps, and ancillary drives differ between models (e.g., Audi A4 vs. VW Passat). You must plan to transfer these from your original engine.

What’s Typically Included & Condition Assessment

This is a complete engine assembly as removed. It should include:

• Complete long block (block, cylinder head, valve cover).

• Turbocharger and exhaust manifold.

• Intake manifold with EGR valve/cooler.

• High-pressure fuel pump, fuel rails, and injectors.

• Engine wiring harness and ECU – Specify if included and for which model.

• All sensors, DPF pressure sensors, and thermostat housing.

• Condition: Low mileage is a strong advantage. Request:

  • Service History: Inquire about timing belt service. While the interval is typically longer (~210,000 km), check if it was done.

  • DPF & EGR History: Ask if these systems were functioning properly upon removal. Clogged systems can indicate poor maintenance.

  • Leak Inspection: Common leak points are the vacuum pump seal (rear of engine), oil cooler seal, and turbo oil/air lines.

  • Turbo Actuator: Verify the variable geometry turbo actuator moves freely.