Hybrid Turbo 1.4 TDI 90 hp, 54399700015, 54399880015, 045253019A, 045253019AX, 045253019AV

Hybrid
Hybrid Turbo 1.4 TDI 90 hp, 54399700015, 54399880015, 045253019A, 045253019AX, 045253019AV
  • Hybrid Turbo 1.4 TDI 90 hp, 54399700015, 54399880015, 045253019A, 045253019AX, 045253019AV
  • Hybrid Turbo 1.4 TDI 90 hp, 54399700015, 54399880015, 045253019A, 045253019AX, 045253019AV
54399700015
Year: From 1998 onwards, depending on the vehicle
Power: 90 hp
displacement: 1,.,4 TDI
Engine code: Not specified
Gasket kit
Preparation course
Exchange
€504.00 VAT included

420 tax excl.

Quantity
Manufacturing time: 15-20 working days

Description

This hybrid turbocharger for, with a 1., 4 TDI, 90 hp engine, features dan internal modification designed to adapt the dair flow and the. compression capacity. Depending on the upgrade package chosen, the documented modifications relate to the MFS compressor wheel, the housings, the turbine wheel, the bearing thrust ring and the balancing.

The applications listed include, in particular, the Audi A2 as well as the Volkswagen Lupo and Polo models fitted with the 1.4 TDI 90 hp.

Available versions — Stage 1, Stage 2 and Stage 3

Stage 1
Compressor wheel: MFS high-flow
Bearing: 360° thrust
Balancing: high-speed at 150,000 rpm on a Cimat VSR test bench

This modification enhances the compressor impeller whilst incorporating a 360° thrust bearing. It is designed to adjust the air flow rate dwithout any documented modifications to the casings or the turbine impeller.

Stage 2
Compressor impeller: MFS high-flow oversized
dintake casing: re-profiled for accommodate the new impeller
Bearing: 360° thrust
Balancing: high-speed at 150,000 rpm on a Cimat VSR test bench

The Stage 2 combines a oversized compressor impeller with a reprofiled dintake housing. This configuration can move more air d, with performance depending on the engine management system and the overall tuning.

Stage 3
Compressor wheel: MFS high-flow oversized
dintake housing: re-profiled for to accommodate the new impeller
Bearing: 360° thrust
Turbine wheel: high-flow oversized
Turbine casing: re-profiled for ly to accommodate the new impeller
Balancing: high-speed at 150,000 rpm on a Cimat VSR test bench

This modification is carried out on both the compressor and turbine sides. The sizing of the impellers and the re-profiling of the housings can alter both flow rate and response time; the choice must therefore be consistent with the engine’s intended use and modification.

What is a hybrid turbo?

A hybrid turbo utilises a turbocharger architecture adapted for accommodate modified internal components. Depending on the upgrade package, the modification may involve the compressor wheel, the turbine wheel, the housings, the thrust bearing and balancing.

The aim is dto adapt the compression capacity and air flow rate d. However, a hybrid turbo is not defined solely by the appearance of its compressor wheel: the geometry, integration into the casings and the balance of the assembly as a whole are crucial.

MFS compressor wheel: standard or ‘ Performance ’?

MFS stands for ‘Milled From Solid’, meaning a wheel machined from a solid block. This manufacturing process alone does not guarantee an increase in air flow d. A standard MFS wheel may retain a geometry equivalent to the original.

A standard MFS impeller can be just as polished as an MFS impeller Performance. It is not its appearance that determines its performance, but its geometry and its ability to move more d’air. With the right engine tuning, a higher airflow can help to generate more power, although this alone does not guarantee results.

Why does the geometry of the blades influence the air flow rate d?

The compressor impeller draws in and then compresses the air. Its diameter, profile, height, width and blade arrangement influence its aerodynamic behaviour. A suitable geometry can move more dair under certain conditions, but the result also depends on the housings, the turbine, the boost pressure and the mapping. A larger impeller therefore does not automatically guarantee better performance and may alter the response time.

Reliability and balancing of the hybrid turbocharger

The documented 360° thrust bearing distributes axial forces over a wide surface area. The rotor is balanced at high speed, up to 150,000 rpm on a Cimat VSR test bench, to minimise vibrations and mechanical stresses. This balancing does not compensate for incorrect installation or inadequate lubrication.

Engine remapping and preparation

Operating da hybrid turbo requires appropriate engine management. The mapping, boost pressure, fuel injection, cooling, exhaust and transmission must be controlled according to the level of tuning. The wastegate must be adjusted when remapping the ECU. No power gain is automatic without a coherent configuration.

Turbo specifications

Manufacturer’s part numbers

5439 988 0015
5439 970 0015
54399880015
54399700015

OEM part numbers

045253019A
045253019AX
045253019AV

Compatible vehicles and applications

Audi
A2 1.4 TDI –90 hp
Engine type 1.4 TDI — from 2000, month and end date unspecified
Engine code: not specified
Volkswagen
Lupo 1.4 TDI –90 hp
Engine 1.4 TDI — from 1998, month and end date unspecified
Engine code: not specified
Polo 1.4 TDI — 90 hp
Engine variants: 1-., 4- TDI — from 2000, month and end date unspecified
Engine code: not specified

Additional technical specifications

Product type: turbo hybrid
Engine: 1.4 TDI
Power: 90 hp
Engine codes: not specified
Installation: plug & play configuration documented

Fitting advice

⚠️ WARNING — IMPORTANT BEFORE INSTALLATION

Identify and rectify the cause of the previous fault. Check the lubrication circuit, as well as the oil supply and return d. Check that the pipes are clean, the inlet and that there are no foreign objects. Prime the system in accordance with the applicable recommendations and follow the manufacturer’s instructions. A lubrication fault that is not rectified may lead to further turbocharger failure.

How do you identify the correct turbo?

Check the turbo’s part number d, the original OEM and manufacturer part numbers, the make, model, engine type, power output,Year and engine code.. An identical engine type does not always guarantee compatibility between two units.

⚠️ Check your turbo’s part numbers

Before ordering, compare the part number marked on your original turbo d with the part numbers listed in this product sheet. An identical engine specification does not always guarantee compatibility. If in doubt, please contact us before ordering.

Product Details
54399700015
Hybrid
Attachments
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Installation instructions and pr

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Turbo: specialists in turbochargers since 2012

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How do you identify the correct turbo part number?

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Before ordering, note down the part numbers shown on the identification plate d of your old turbocharger. This may be d an OEM part number or d a part number from the turbo manufacturer.

Compare these part numbers with those listed on our product pages.. If in doubt, our team can help you verify the part number you are looking for before you place your order.

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A loss of power, an unusual whistling noise, oil consumption d, abnormal smoke or poor engine performance may be linked to a turbocharger fault.

However, a fault that appears to be turbo-related may also stem d from a lubrication issue, d from contaminated oil, d from a foreign object, from the intake or exhaust systems, or d from another engine peripheral component.

It is therefore important to investigate the cause of the fault before fitting a new turbo or a new Cartridge.

→ Identifying the symptoms d of a turbo failure

→ Understand the main causes of turbo failure d

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