Turbocharger 03F145701G 03F145701F 03F145701L

Turbocharger RHF3 03F145701G 03F145701F 03F145701L for Volkswagen Touran 1.2 TSI CBZA CBZB 77 Kw

The turbocharger is one of the most critical components in a modern internal combustion engine, 

especially in compact turbocharged petrol engines like the Volkswagen 1.2 TSI. The RHF3 turbocharger, 

with OEM part numbers 03F145701G, 03F145701F, and 03F145701L, is specifically designed for Volkswagen models 

equipped with the 1.2 TSI engine (engine codes CBZA and CBZB), delivering 77 kW (105 hp). 

This unit helps restore original engine performance, fuel efficiency, and emissions compliance.

Product Description

The RHF3 is a compact and efficient turbocharger developed for small-displacement direct-injection petrol engines. 

Manufactured with precision, it features a high-speed turbine and compressor wheel, designed to deliver optimal airflow and boost pressure. 

Its internal wastegate system ensures stable performance and protects the engine from overboost conditions.

This turbocharger utilizes high-quality materials, including heat-resistant alloys in the turbine housing and lightweight aluminum in the compressor section. 

It is built to withstand the thermal and mechanical stresses typically encountered in turbocharged engines.

Compatibility

This turbocharger is compatible with the following vehicles:

Volkswagen Touran 1.2 TSI (CBZA / CBZB) – 77 kW (105 hp)

Production years: Approximately 2010–2015

Additionally, this turbo may also be found in other Volkswagen Group vehicles using the same 1.2 TSI engine, including:

Volkswagen Golf Mk6 / Polo Mk5

Audi A1 / A3

SEAT Ibiza / Leon

Škoda Fabia / Rapid / Octavia (select models)

Please ensure your vehicle's engine code and turbo part number match before ordering.

OEM Part Numbers

This turbocharger replaces or is interchangeable with the following original equipment part numbers:

03F145701G

03F145701F

03F145701L

The variations in part numbers usually reflect minor design or supplier changes over the life cycle of the vehicle, but functionally they are compatible and interchangeable.

Technical Specifications

Model: RHF3

Application: Gasoline engine with direct fuel injection

Engine codes: CBZA, CBZB

Displacement: 1.2 TSI (Turbocharged Stratified Injection)

Power output: 77 kW / 105 hp

Cooling type: Oil and water-cooled

Boost control: Internal wastegate actuator

Material: Turbine housing (cast iron), Compressor housing (aluminum)

Max boost pressure: Approx. 1.2 bar

Bearing type: Journal bearing (sliding bearing)

Benefits of Replacing with a New Turbocharger

Restores Original Performance: A new turbo restores engine power, torque, and throttle response, especially at low and mid-range RPMs.

Improved Fuel Efficiency: With correct boost levels and airflow, the engine burns fuel more efficiently, reducing overall consumption.

Reduced Emissions: Proper turbocharging improves combustion, leading to cleaner exhaust gases and compliance with emissions regulations.

Long Service Life: A brand-new unit, when properly installed and maintained, can last over 150,000 kilometers.

Installation Tips

To ensure optimal performance and longevity, follow these best practices when installing your turbocharger:

Always flush and clean the oil supply lines and intercooler.

Replace the engine oil and oil filter before installation.

Prime the turbo with fresh oil before the first startup.

Check and resolve any issues that may have caused the failure of the old turbo (such as oil starvation or clogged DPF).

Allow the engine to idle for a few minutes after startup to ensure proper lubrication and avoid thermal shock.

Quality Assurance

Each turbocharger is rigorously tested for:

Shaft balance and vibration at high RPM

Compressor and turbine housing tolerances

Wastegate actuation and pressure holding

Oil leakage and seal integrity

Whether you're a professional mechanic, a workshop owner, or a car enthusiast performing a DIY repair, 

this replacement turbocharger offers OEM-level reliability at a more cost-effective price point.

Conclusion

The RHF3 Turbocharger (03F145701G / 03F145701F / 03F145701L) is a high-performance, direct-fit replacement designed for Volkswagen’s 1.2 TSI engines. 

It’s engineered to meet or exceed OEM standards, ensuring your vehicle gets back on the road with its original driving dynamics and efficiency. 

With the right installation and maintenance, this turbo is a solid investment for restoring your engine’s power, responsiveness, and fuel economy.