Audi A4 B9 A5 F5 Diesel Engine Turbocharger 2.0 TDI DTNB 05L253019J

The Audi A4 B9 A5 F5 2.0 TDI Diesel DTNB turbocharger is an original equipment turbocharger and parts component designed for Audi diesel engines. This used OEM component ensures a factory fit for the 2.0 TDI engine, maintaining the proper operating parameters of the turbocharging system.

Specifications and technical data

• SKU: 05L253019J
• Mark: Audi
• Condition: Used
• OEM Part Number: 05L253019J
• Substitutable numbers: 05L253019J, 05L 253 019 J
• Fuel type: Diesel
• Category: Turbos & Parts

Technical characteristics of the turbocharger

This turbocharger is designed to work with the 2.0 TDI Diesel engine in the Audi A4 B9 and Audi A5 F5 models. The OEM design ensures compliance with the manufacturer's factory requirements for boost pressure, exhaust gas flow, and operating characteristics across the full RPM range.

As a component designed for a diesel engine, the turbocharger is adapted to the specific operating conditions of a diesel engine – higher compression pressures, greater torque at low revs, and sustained thermal loads. This allows the turbocharging system to maintain stable parameters, resulting in predictable throttle response and smooth engine operation.

Purpose and compatibility

The Audi A4 B9 A5 F5 2.0 TDI Diesel DTNB turbocharger is designed for use in Audi vehicles with a 2.0 TDI diesel engine that are factory-installed with this type of component. Its original Audi OE design means it retains the correct geometry, mounting points, and oil and air connections, making it easy to replace a worn unit.

Selecting a turbocharger that complies with the engine designation and manufacturer specifications is crucial to the safety and durability of the engine. A properly matched component helps avoid problems with over- or under-boost, engine control unit errors, and performance degradation.

Product status and practical application

The turbocharger offered is in used condition, allowing for cost-effective replacement of the worn component while maintaining its original design. This solution is particularly beneficial in the following cases:

• post-accident or service repairs where a quick return to roadworthiness of the vehicle is required,
• restoration projects where the priority is to preserve original Audi components,
• users looking for a compromise between repair cost and compliance with factory specifications.

Used condition means that the component has traces of use, but retains functionality allowing for further operation in the supercharging system after correct installation and following service recommendations.

Benefits of using an original Audi turbocharger

Using an original turbocharger from the Audi OE range in the 2.0 TDI diesel engine brings a number of practical benefits:

• Factory fit – compatible with exhaust, intake and engine management systems, no modifications required.
• Stable operating parameters – maintaining the manufacturer’s intended boost characteristics, which supports the proper operation of the injection system and emission control systems.
• Consistency with ECU software – the engine controller operates within the range of values for which it was calibrated, which reduces the risk of diagnostic errors.
• Economical repair – a used component allows you to reduce service costs while maintaining the original design.

Selection, assembly and substantive support

Before installing a turbocharger, it's recommended to perform a full diagnostic of the lubrication, intake, and exhaust systems to eliminate the causes of previous damage. Proper installation includes replacing the engine oil and filters, and checking the hoses for leaks, which is crucial to the component's durability.

If you're looking for other turbochargers for Audi in the same category, check out the available models in our Audi turbochargers section. This will allow you to easily compare different variants based on their intended use and engine specifications.

When choosing a used component for a supercharger system, it's worth being aware of common mistakes made when selecting parts for modifications or repairs. Practical tips can be found in the article: Buying Used Car Parts – The Most Common Mistakes When Choosing Tuning Parts , which will help you plan your engine component investment wisely.