This plug & play hybrid turbocharger is designed for, various Bmw models fitted with N54 B30 A and N55 B30 A petrol engines.. Its specification is based on an MFS compressor wheel Performance and components tailored for performance-oriented use.
Documented applications include, in particular, the Bmw Series 1, Series 2 and Series 3 across several generations and body styles. The part number of the original dturbocharger must be checked before placing any order.
Available upgrades — Stage 1 and Stage 2
Stage 1
MFS high-flow compressor wheel: 45.79 / 62.00 mm
Blade configuration: 6+6 Performance
360° thrust bearing
Balanced at 150,000 rpm on a Cimat VSR test bench
This configuration alters the compression capacity and air flow rate dof the turbocharger whilst maintaining a documented plug & play installation.
Stage 2
MFS high-flow compressor impeller oversized: 54.60 / 67.00 mm
Blade configuration: 6+6 Performance
d’s re-profiled intake housing for accommodate the impeller oversized
360° thrust bearing
Balanced at 150,000 rpm on a Cimat VSR test bench
The increased diameter and reshaping of the housing are designed to adapt the air intake passage dto the new impeller. This modification may alter the available flow rate as well as the turbo’s behaviour, depending on the engine configuration.
Hybrid turbo technology
What is a hybrid turbocharger?
A hybrid turbo retains an architecture suited to the original dapplication whilst incorporating internal modifications. Depending on the upgrade stage, these modifications relate to the compressor wheel, its dimensions, the geometry of the blades, the thrust ring and, for for the Stage 2, the reprofiling of the dintake housing.
MFS compressor wheel: standard or ‘ Performance ’?
MFS stands for ‘Milled From Solid’, i.e. an impeller machined from a solid block. This manufacturing process alone does not guarantee a higher airflow. A standard MFS impeller can be just as shiny 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.
Why does the geometry of the blades influence the air flow rate d?
The impeller’s diameter, profile, height, width and blade arrangement all influence air intake and compression. A larger impeller does not automatically guarantee better performance: the result also depends on the casings, the turbine, the boost pressure and the engine tuning.
Reliability and balancing of the hybrid turbo
The 360° thrust bearing helps to distribute axial forces. Balancing the rotor at 150,000 rpm on a Cimat VSR test bench aims to limit vibrations and mechanical stresses, without compensating for incorrect installation or inadequate lubrication.
Engine remapping and tuning
Adjustments to the mapping and pressure control may be necessary for to make the most of the turbo’s characteristics. Fuel injection, exhaust, cooling, transmission and wastegate settings must be checked or adjusted according to the vehicle’s configuration.
Turbo specifications
OEM part numbers
11657588995
11657636424
11654577236
11652470368
Manufacturer part numbers
18539880003
18539700003
18539880007
18539700007
Compatible vehicles and specifications
Bmw
1 Series Coupé E82 — 326 hp
N54 B30 A or N55 B30 A — 10/2007 to 10/2013
1 Series F20 — 320 hp
N55 B30 A — 07/2012 to 02/2015
Series 1 F20 — 320 hp
N55 B30 A — 11/2012 to 02/2015
1 Series F21 — 320 hp
N55 B30 A — Dec 2011 to Jun 2016
1 Series F21 — 320 hp
N55 B30 A — 02/2012 to 06/2016
1 Series Convertible E88 — 326 hp
N55 B30 A — 03/2008 to 12/2013
2 Series Coupé F22/F87 — 326 hp
N55 B30 A — 10/2013 to 06/2016
2 Series Coupé F22/F87 — 326 hp
N55 B30 A — 07/2014 to 06/2016
3 Series E90 — 326 hp
N54 B30 A or N55 B30 A — 03/2006 to 12/2011
3 Series E90 — 326 hp
N54 B30 A or N55 B30 A — 05/2008 to 10/2011
3 Series F30/F80 — 306 hp
N55 B30 A — 11/2011 to 07/2015
3 Series F30/F80 — 306 hp
N55 B30 A — 07/2012 to 07/2015
3 Series F30/F80 — 326 hp
N55 B30 A — 11/2011 to 06/2013
3 Series F30/F80 — 326 hp
N55 B30 A — 07/2012 to 06/2013
3 Series F30/F80 petrol/electric — 340 hp
N55 B30 A — 07/2012 to 06/2015
3 Series Convertible E93 — 326 hp
N54 B30 A or N55 B30 A — 05/2006 to 10/2013
3 Series Coupé E92 — 326 hp
N54 B30 A or N55 B30 A — 06/2006 to 06/2013
3 Series Coupé E92 — 326 hp
N55 B30 A — 11/2008 to 06/2013
3 Series Estate E91 — 306 hp
N54 B30 A or N55 B30 A — 09/2008 to 06/2012
3 Series Touring E91 — 326 hp
N54 B30 A or N55 B30 A — 09/2006 to 06/2012
3 Series Touring E91 — 326 hp
N54 B30 A or N55 B30 A — 09/2008 to 06/2012
3 Series Touring F31 — 306 hp
N55 B30 A — 03/2013 to 06/2015
3 Series Touring F31 — 326 hp
N55 B30 A — 03/2013 to 06/2013
3 Series Gran Turismo F34 — 306 hp
N55 B30 A — 03/2013 to 06/2016
3 Series Gran Turismo F34 — 306 hp
N55 B30 A — 07/2013 to 06/2016
Additional technical specifications
Type: turbo hybrid
Fuel: petrol or petrol/electric depending on configuration
Documented power outputs: 306, 320, 326 and 340 hp
Engine codes: N54 B30 A, N55 B30 A
Installation: plug & play, no modifications required d’ documented installation
Fitting advice
⚠️ WARNING — IMPORTANT BEFORE INSTALLATIONIdentify and rectify the cause of the previous fault. Check the lubrication circuit, the oil supply and return d, the cleanliness of the pipes, as well as theintake, and ensure there are no foreign objects. Carry out priming in accordance with the applicable recommendations and follow the manufacturer’s instructions. It is necessary to adjust the wastegate and check the engine management system. An unresolved lubrication fault may lead to further turbocharger failure.
How do you identify the correct turbo?
Check the turbo part number d, the original, OEM and manufacturer part numbers, the model, generation, body style, power output, production period and engine code.. An identical engine specification does not always guarantee compatibility.
⚠️ Check your turbo’s part numbersBefore ordering, compare the part number marked on your original turbo d with the part numbers listed in this specification sheet. An identical engine specification does not always guarantee compatibility. If in doubt, contact us with the part number you have noted from your turbo.