New BMW Série 4 Turbo – Ref. 49477-02404
- 100% secure online payment
- Delivery to your garage or home, anywhere in Europe
- 12-month parts warranty
- Reconditioned and checked turbo
- Part
- Turbo
- Part type
- New turbo
- Make
- BMW
- Model
- Série 4
- Engine
- 420i, 430i
- Fuel
- Petrol
- Equivalent references
- 49477-02404, 11652393604, 11657637563, 11658631891, 11658631892, 2393604, 239360401, 7637563, 763756305, 763756307, 763756308, 763756309, 763756310, 763756311, 763756312, 8631891, 8631892
- Warranty
- 12 months
An expert is here to help
Not sure you've found the right part?
A new turbo designed for the BMW Série 4
The BMW Série 4 is prized for its dynamic, sporting character, whether used for lively daily commutes or sustained motorway runs. This driving profile, combined with frequent acceleration and occasionally high engine speeds, places considerable demands on the B48B20 block's turbocharger. On the 420i and 430i variants, the turbo must deliver constant boost pressure to match the petrol engine's output, which calls for flawless lubrication and a perfectly sealed air circuit.
Compatibility of the new turbo for the Série 4 420i and 430i
This new turbo is compatible with reference 49477-02404, intended for the 420i and 430i petrol engines fitted with the B48B20 engine (codes B48B20A, B48B20B, B46B20B) with an engine capacity of 1998 cm³. Before placing an order, we recommend checking this reference directly on your old turbo to ensure perfect compatibility with your vehicle.
Exchange basis and warranty for your Série 4
This new turbo is sold on an exchange basis: your old turbo must be returned to us in accordance with our Terms and Conditions. It is only collected after the new turbo has been delivered and fitted, so your BMW Série 4 is not left off the road. The part comes with a 12-month parts warranty, subject to fitting by a qualified professional. Payment can be spread over several instalments, in up to 10 instalments.
Advice before fitting on the B48B20 engine
Before installing the new turbo, check the condition of the oil circuit, the cleanliness of the hoses and the state of the air intake, as any contamination or restriction can quickly damage the new component. On this turbocharged petrol engine, pay close attention to engine oil quality and adherence to oil change intervals, which are the main causes of premature turbo failure. When starting up for the first time, prime the oil supply to avoid any dry running on start-up.
This same turbo also fits
A new turbo designed for the BMW Série 4
The BMW Série 4 is prized for its dynamic, sporting character, whether used for lively daily commutes or sustained motorway runs. This driving profile, combined with frequent acceleration and occasionally high engine speeds, places considerable demands on the B48B20 block's turbocharger. On the 420i and 430i variants, the turbo must deliver constant boost pressure to match the petrol engine's output, which calls for flawless lubrication and a perfectly sealed air circuit.
Compatibility of the new turbo for the Série 4 420i and 430i
This new turbo is compatible with reference 49477-02404, intended for the 420i and 430i petrol engines fitted with the B48B20 engine (codes B48B20A, B48B20B, B46B20B) with an engine capacity of 1998 cm³. Before placing an order, we recommend checking this reference directly on your old turbo to ensure perfect compatibility with your vehicle.
Exchange basis and warranty for your Série 4
This new turbo is sold on an exchange basis: your old turbo must be returned to us in accordance with our Terms and Conditions. It is only collected after the new turbo has been delivered and fitted, so your BMW Série 4 is not left off the road. The part comes with a 12-month parts warranty, subject to fitting by a qualified professional. Payment can be spread over several instalments, in up to 10 instalments.
Advice before fitting on the B48B20 engine
Before installing the new turbo, check the condition of the oil circuit, the cleanliness of the hoses and the state of the air intake, as any contamination or restriction can quickly damage the new component. On this turbocharged petrol engine, pay close attention to engine oil quality and adherence to oil change intervals, which are the main causes of premature turbo failure. When starting up for the first time, prime the oil supply to avoid any dry running on start-up.
This same turbo also fits
Frequently asked questions
Everything you need to know before ordering your part.
