Turbocharger 707240-5003S 9649588680

The Turbocharger 707240-5003S with OEM part number 9649588680 is an essential component designed for the Peugeot 807 2.2L HDi

equipped with the DW12TED4S engine. Built with performance, durability, and fuel efficiency in mind, 

this turbocharger is engineered to provide optimum boost pressure, improve power output, and ensure lower emissions, 

which is vital for modern diesel engines like the DW12TED4S.

1. Application and Compatibility

This turbocharger is specifically designed for the Peugeot 807, a family MPV (Multi-Purpose Vehicle) that prioritizes comfort and versatility.

 The 2.2L HDi engine, coded as DW12TED4S, is a turbocharged diesel powerplant featuring common rail direct injection technology. 

It is known for providing strong mid-range torque, improved fuel economy, and a quieter ride compared to older diesel engines.

The 707240-5003S turbocharger is fully compatible with the following:

• Vehicle Make/Model: Peugeot 807

• Engine Type: 2.2L HDi

• Engine Code: DW12TED4S

• OEM Part Numbers: 707240-5003S, 9649588680

This turbocharger is also used in some Citroën and Fiat models that share the same PSA engine platform, 

such as the Citroën C8 and Fiat Ulysse 2.2 JTD, but it is most prominently associated with the Peugeot 807.

2. Technical Specifications

• Turbo Model: Garrett GT20V / GT1749V

• Manufacturer Part Number: 707240-5003S

• OEM Reference: 9649588680

• Engine Type: 2.2L HDi, DW12TED4S

• Fuel Type: Diesel

• Cooling: Oil and water-cooled

• Actuator Type: Pneumatic wastegate actuator (vacuum-controlled VNT)

• Compressor Wheel Inducer Diameter: Approx. 37mm

• Turbine Wheel Exducer Diameter: Approx. 41mm

• Bearing Type: Journal bearing

This is a variable geometry turbocharger (VGT), which means it adjusts its vane angles depending on 

engine speed and load to reduce turbo lag and maintain boost across a wide range of RPMs.

3. Key Features and Advantages

a. Variable Geometry Technology

The GT1749V turbocharger is equipped with VNT (Variable Nozzle Turbine) technology. This system allows the turbo to change the angle of the turbine vanes dynamically.

 This flexibility ensures optimal exhaust gas flow, significantly reducing turbo lag and improving acceleration and responsiveness across the rev range.

b. Improved Fuel Efficiency

By optimizing air intake and combustion, the turbocharger allows the DW12TED4S engine to operate more efficiently. 

This results in lower fuel consumption and better mileage, making it ideal for long-distance family trips or commercial use.

c. Lower Emissions

Modern turbochargers play a crucial role in emission control. By ensuring better combustion efficiency, 

the 707240-5003S helps the engine reduce unburnt fuel and particulate matter, aiding in compliance with Euro IV/V emissions standards,

 which were prevalent when the Peugeot 807 was in production.

d. Durable and Reliable

Manufactured by Garrett, a globally recognized brand in turbocharging systems, this turbo is built to OEM standards. With high-quality materials

 such as heat-resistant turbine housings and precision-balanced components, it ensures long service life under demanding driving conditions.

e. Quiet Operation

Thanks to the advanced design of both the compressor and turbine sides, the turbo operates with minimal noise, 

contributing to the Peugeot 807's reputation for cabin quietness and ride comfort.

4. Common Symptoms of a Failing Turbocharger

While the 707240-5003S is a reliable unit, wear and tear over time can lead to issues. Symptoms of a failing turbo include:

• Noticeable loss of power and poor acceleration

• Excessive black or blue smoke from the exhaust

• Whining or whistling noise from the turbo area

• Check engine light or fault codes related to boost pressure

• Oil leaks around the turbocharger

If any of these symptoms are present, a turbo inspection or replacement may be required to restore engine performance.

5. Installation and Maintenance Tips

a. Professional Installation Recommended

Installing a turbocharger requires precision and technical know-how. It is highly recommended to have the turbo installed by a certified mechanic. 

Proper installation ensures correct oil feed line routing, actuator calibration, and VNT vane functionality.

b. Pre-Lubrication

Always pre-lubricate the turbo with clean engine oil before starting the engine after installation. 

This helps prevent dry start damage to the journal bearings.

c. Oil and Filter Replacement

Dirty or contaminated oil is the most common cause of turbo failure. Replace engine oil and filters with high-quality 

products during turbo replacement and adhere strictly to regular maintenance schedules.

d. Check for Blockages

Ensure the intercooler, air intake, and oil feed lines are clean and free from debris or carbon build-up. 

This prevents restrictions that can lead to overheating or oil starvation.

e. Turbo Cool-Down

After long drives or high-speed driving, allow the engine to idle for 1-2 minutes before shutting off.

 This helps the turbo cool down gradually, preventing thermal stress and oil coking.

6. Conclusion

The Turbocharger 707240-5003S / 9649588680 for the Peugeot 807 2.2L HDi DW12TED4S engine is a high-performance, 

OEM-quality unit that delivers optimal boost pressure, durability, and fuel efficiency. Whether you are replacing a worn-out turbo or performing 

an engine upgrade, this Garrett turbo is a reliable and cost-effective choice.