This hybrid turbocharger, designed for the Mercedes Sprinter 2.7 CDI with a 156 hp engine, features d a mechanical modification designed for to adapt the d air flow and the compression capacity. The various configurations combine a high-flow MFS compressor wheel, a 360° bearing stop and high-speed balancing.
Installation is designed to require no modification to the original assembly d'. The documented applications relate to the Sprinter 216, 316, 416 and 616 models from the 901 to 904 series from 2004 onwards.
Available versions — Stage 1, Stage 2 and Stage 3
Stage 1
Compressor impeller: MFS high-flow
Bearing: 360° thrust
Balancing: high-speed at 150,000 rpm on a Cimat VSR test bench
This modification primarily affects the compressor impeller in order d to adapt the flow rate d to the air, whilst retaining a mechanical configuration closer to the original d design.
Stage 2
Compressor wheel: MFS high-flow oversized
Intake casing d: re-profiled for accommodate the new impeller oversized
Bearing: 360° thrust
Balancing: high-speed at 150,000 rpm on a Cimat VSR test bench
oversized ’s compressor impeller requires the intake housing to be re-profiled d. This combination aims to increase air displacement capacity, with performance that also depends on the engine management system and the overall configuration.
Stage 3
Supercharger impeller: MFS high-flow oversized
Casing d'intake: re-profiled for to accommodate the new impeller oversized
Bearing: 360° thrust
Turbine impeller: high-flow oversized
Turbine casing: re-profiled for ly to accommodate the new impeller oversized
Balancing: high-speed at 150,000 rpm on a Cimat VSR test bench
This configuration combines modifications to both the compressor and turbine sides. The sizing of the impellers and the re-profiling of both housings alter the flow capacity and the response characteristics of the turbocharger.
What is a hybrid turbo?
A hybrid turbo retains an architecture suited to the vehicle whilst incorporating internal modifications. Depending on the upgrade stage, these may involve the compressor impeller, the housings, the turbine impeller, the thrust bearing or the rotor balancing.
The aim is d to adapt the compression capacity and the air flow d. A hybrid turbo is therefore not defined solely by the appearance of its compressor wheel, but by the coherence of its geometry and the mechanical modifications carried out.
MFS compressor wheel: standard or Performance?
MFS stands for ‘Milled From Solid’, meaning a wheel machined from a solid block. This technology describes a manufacturing process and does not, on its own, guarantee an increase in airflow d.
A standard MFS impeller may retain a geometry equivalent to the original. An ‘ Performance ’ MFS impeller features a geometry tailored to the tuning objective. On this product, the wheel shown is made of forged aluminium; it is lighter, wider and taller than the d original, with a claimed 15 per cent higher load capacity.
A standard MFS impeller can perform just as well 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. A higher airflow can contribute to power output when the engine tuning is correctly matched.
Why does the geometry of the blades influence the air flow rate d?
The compressor impeller draws in and then compresses the air destined for the engine. Its diameter, profile, height, width and the arrangement of its blades influence its aerodynamic behaviour. A suitable geometry can move more d air under certain conditions, but the result also depends on the casings, the turbine, the boost pressure and the mapping. A larger impeller does not automatically guarantee better performance and may alter the response time.
Reliability and balancing of the hybrid turbocharger
The 360° thrust bearing distributes axial forces around the bearing. The rotor is balanced at high speed, up to 150,000 rpm on a Cimat VSR test bench, to minimise vibrations and mechanical stresses. However, this balancing does not compensate for faults in assembly or lubrication.
Engine remapping and preparation
Appropriate engine management is required for to make the most of the hybrid turbo’s characteristics. Fuel injection, exhaust, cooling, boost pressure and, depending on the vehicle, the transmission must be checked or adjusted. The wastegate must be adjusted when the ECU is remapped. The turbo alone does not guarantee a power gain.
Turbo specifications
OEM part numbers
A6470900280
6470900280
Manufacturer’s part numbers
736088-3
736088-1
Compatible vehicles and applications
Mercedes
Sprinter 216 (901–904) — 156 hp
2.7 CDI — from 2004, end date unspecified
Engine code : unspecified
Sprinter 316 (901–904) — 156 hp
2.7 CDI — from 2004, end date unspecified
Engine code : unspecified
Sprinter 416 (901–904) — 156 hp
2.7 CDI — from 2004, end date unspecified
Engine code : unspecified
Sprinter 616 (901–904) — 156 hp
2.7 CDI — from 2004, end date unspecified
Engine code : unspecified
Additional technical specifications
Product type: turbo hybrid
Engine: 2.7 CDI
displacement: 2.7 l
Power: 156 hp
Fitting period: from 2004, end not specified
Installation: no modifications to the original d set-up required
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 lines 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 part number marked on the turbo d the original, OEM and manufacturer part numbers, as well as the vehicle’s model, generation, engine type, power output andYear. An identical engine may be fitted with several different turbo set-ups.
⚠️ 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 specification sheet. An identical engine specification does not always guarantee compatibility.
If you are unsure about the fitment, please contact us with the full part number of the original turbo d.
