Turbo Core 04E145722G 49180-01405 04E145715D 04E145715E

Turbocharger Cartridge 04E145722G / 49180-01405 / 04E145715D / 04E145715E for Audi A1 A3 Q2 Q3 1.4 TFSI CHPA CPTA CZDA – Product Introduction

The Turbocharger Cartridge 04E145722G / 49180-01405 / 04E145715D / 04E145715E is a high-performance,

 precision-engineered core component designed specifically for the Audi A1, A3, Q2, and Q3 models equipped with the 1.4 TFSI petrol engine. 

Compatible with engine codes CHPA, CPTA, and CZDA, this turbo core offers excellent boost response, enhanced reliability, 

and efficient combustion performance — all crucial elements for modern downsized engines demanding both power and fuel economy.

1. Product Overview

This turbocharger cartridge is a direct replacement part for the original turbochargers used in various Volkswagen Group models. 

As the central rotating component within the turbo system — also known as the CHRA (Center Housing Rotating Assembly) — it includes the turbine shaft,

 compressor wheel, bearings, and other key internals housed within the core. Its purpose is to generate additional intake 

air pressure by using exhaust gases to spin a turbine, thereby increasing engine power output without increasing engine displacement.

With part numbers 04E145722G, 49180-01405, 04E145715D, and 04E145715E, this CHRA is designed for quick installation and full 

compatibility with the original Garrett or MHI (Mitsubishi Heavy Industries) turbocharger housing.

2. Vehicle Compatibility

This turbo cartridge fits a wide range of Audi models equipped with the 1.4 TFSI petrol engine:

• Audi A1 (8X) – 1.4 TFSI CHPA/CPTA/CZDA engine

• Audi A3 (8V) – 1.4 TFSI CHPA/CZDA engine

• Audi Q2 (GA) – 1.4 TFSI CZDA engine

• Audi Q3 (8U) – 1.4 TFSI CHPA engine

These engines are part of Volkswagen Group’s modular engine platform, where turbocharging is essential 

for maximizing efficiency and performance in small-displacement engines.

3. Technical Specifications

• Part Numbers:

• 04E145722G

• 49180-01405

• 04E145715D

• 04E145715E

• Turbocharger Type: Single-scroll, Wastegate Controlled

• Compressor Wheel: Billet aluminum, precision-balanced

• Turbine Wheel: Inconel (heat-resistant alloy)

• Bearing Type: Journal bearing system

• Cooling: Oil-cooled or oil & water-cooled depending on version

• Max Boost Pressure: Approx. 1.2–1.4 bar (factory settings)

• Application: Gasoline direct injection turbocharged engines

4. Features and Benefits

A. OEM-Level Performance

This cartridge is manufactured to meet or exceed original equipment standards, ensuring seamless integration into your vehicle’s turbo system. 

Performance characteristics such as spool time, boost pressure, and durability match the original turbocharger’s specifications.

B. Precision Balancing

Every unit is dynamically balanced at high RPMs to prevent vibrations and to ensure long-term reliability. Proper balancing is crucial

 to avoid premature bearing wear and to maintain turbine integrity at high speeds (often exceeding 100,000 RPM).

C. High-Quality Materials

The turbine wheel is made from Inconel, a nickel-chromium alloy known for its resistance to heat and oxidation. 

The compressor wheel, often machined from lightweight billet aluminum, ensures fast boost response. 

The bearing system and seals are built for longevity even under high thermal loads.

D. Cost-Effective Repair Solution

Replacing only the cartridge (CHRA) instead of the entire turbocharger assembly is a more economical option,

 especially when the compressor/turbine housings are undamaged. This can significantly reduce maintenance costs while restoring full engine performance.

E. Improved Engine Efficiency

A functional and efficient turbocharger core helps the engine deliver higher torque at low RPM, improved fuel economy, 

and reduced emissions — all of which are critical for meeting modern regulatory standards.

5. Installation Tips

• Always ensure the oil supply lines and return lines are clean and unobstructed before installation.

• Prime the turbo core with clean engine oil to avoid dry start damage.

• After installation, allow the engine to idle for a few minutes to ensure proper oil circulation through the turbo.

• Replace the oil and filter during turbo replacement to eliminate contaminants that could damage the new cartridge.

6. Common Symptoms of Turbo Core Failure

• Excessive white or blue smoke from the exhaust (oil leakage)

• Whining noise or siren sound from turbo

• Loss of engine power or poor acceleration

• Check Engine Light with boost pressure-related codes

• Oil contamination or consumption increase

Replacing the turbo core addresses many of these problems, restoring your vehicle’s performance and preventing further damage to engine components.

7. Quality Control and Warranty

Each Turbocharger Cartridge undergoes a stringent quality control process, including:

• Dimensional inspection

• Material verification

• Dynamic balancing

• Boost and flow testing

Many suppliers also offer a 12-month warranty (subject to installation compliance), ensuring peace of mind and product reliability.

Conclusion

The 04E145722G / 49180-01405 / 04E145715D / 04E145715E Turbocharger Cartridge is a premium-quality replacement 

solution for Audi vehicles equipped with the 1.4 TFSI engine. Designed to OEM standards, it restores the full potential of your turbo system with precision, 

durability, and performance. Whether you are maintaining your daily driver or performing a cost-effective engine repair,

 this turbo cartridge offers excellent value and long-term reliability.