Turbo Dipa Fiat 500 Lancia Ypsilon 1.3 d

The turbocharger with OE code 55221409 is a forced induction component used on numerous FCA group vehicles with 1.3 Multijet diesel engines. This turbocharger belongs to the BorgWarner BV35 family, designed to ensure good performance in terms of torque at low speeds and low fuel consumption, while maintaining compactness and reliability.

Technical characteristics

• Geometry: fixed, with wastegate valve
• Cooling: oil only
• Actuator: pneumatic
• Maximum boost pressure: up to 1.3–1.4 bar

The central body is made of high-strength steel with a turbine wheel in Inconel and a compressor wheel in light alloy to reduce inertia.

DIPA can also intervene to overhaul this component, which is so important for the correct functioning of the engine.

Functionality

The function of the OE turbocharger 55221409 is to increase the pressure of the air drawn into the cylinders, improving the volumetric efficiency of the engine and increasing power and torque. The wastegate system allows limiting the maximum pressure to avoid overboost phenomena, protecting the internal mechanics of the powertrain.

Being without variable geometry, this turbo is less complex from a maintenance point of view but requires the wastegate valve and actuator to be perfectly efficient to ensure a correct response.

Brand and model on which the part is mounted

The OE turbocharger 55221409 has been mounted on a wide range of FCA, Opel, and Chevrolet vehicles equipped with the 1.3 diesel engine, including:

Fiat

• 500
• 500C

Lancia

• Ypsilon

DIPA recommends always checking the compatibility of the spare part before purchase.

Defects and causes

The main defects found on the OE turbocharger 55221409 are generally related to:

• Pressure drop: due to wear of the turbine wheel or axial play of the shaft.
• Faulty wastegate actuator: pressure loss or broken membrane, which prevents the correct opening of the valve.
• Oil leaks: caused by clogging of the lubrication duct or blocked oil return.
• Abnormal noise: a sign of contact between the turbine wheel and the housing due to bearing wear.
• Seized turbine: in case of poor lubrication or delayed oil change.
• Blocked wastegate: can cause overboost or total pressure loss.

The use of non-compliant oil or clogged filters significantly contributes to reducing the turbocharger's service life. Furthermore, failure to replace the exhaust gasket or damaged manifolds can generate black smoke and loss of performance.

Final conclusions

The OE turbocharger 55221409 represents a critical component for the performance of 1.3 Multijet diesel engines used by Fiat and Lancia. Its operation is based on a simple but effective geometry, with a pneumatic actuator and integrated wastegate.

DIPA offers a wide range of spare parts: from original to aftermarket ones selected among the best manufacturers on the market. Not only that: it offers overhauled components with performance equivalent to new ones, allowing savings on replacement and contributing to environmental protection through circular economy. If the spare part you need is not available, don’t worry: DIPA can overhaul your part "on demand," restoring its full functionality and safety in a short time.