New BMW 3 Series 318d/320d Turbo – Ref. 717478-5003S
- 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
- 3 Series
- Engine
- 320d, 320td, 320Cd, 318d, 318td
- Fuel
- Diesel
- Equivalent references
- 717478-5003S, 717478-5001S, 717478-5002S
- Warranty
- 12 months
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Signs of a Worn Turbo on a BMW 3 Series (E46)
On a diesel BMW 3 Series (E46), a turbo nearing the end of its life typically shows itself through a loss of power under acceleration, an unusual whistling noise as the revs climb, blue or black exhaust smoke, and an engine warning light on the dashboard. Excessive oil consumption or a metallic noise from the turbo outlet should also raise the alarm, as these symptoms often precede complete turbocharger failure.
About the New Turbo for the BMW 3 Series
This new turbo is compatible with reference 717478-5003S and is a direct replacement for the original turbocharger fitted to certain diesel BMW 3 Series (E46) models. It is designed to restore the vehicle's original performance across all body styles — saloon, touring, compact, coupé and cabriolet — while meeting the boost pressure tolerances specified for this engine.
Engine Compatibility and Reference Check
This new turbo is intended for diesel engines fitted with the M47 D20 (204D4) unit, with an engine capacity of 1995 cm³, as found on the 318d, 318td, 320d, 320td and 320Cd variants of the 3 Series (E46). Before placing an order, it is essential to check the reference number on your old turbo to confirm exact compatibility with your vehicle, as commercial designations can vary by market and production year.
Warranty and Delivery of the BMW 3 Series Turbo
This new turbo is sold as a straightforward purchase: there is no old unit to return, the vehicle does not need to be kept off the road, and the order results in a single delivery. It carries a 12-month parts warranty, subject to fitting by a qualified professional. Payment can be spread over multiple instalments, in up to 10 instalments.
Fitting and Maintenance Advice
On the M47 D20 engine, the majority of turbo failures stem from insufficient lubrication caused by poor-quality oil, missed oil changes, or a clogged oil filter. A blocked air filter or a damaged intercooler can also contribute to premature turbocharger wear. Before fitting, check the oil circuit, the condition of the hoses, and the cleanliness of the air intake. After installation, prime the turbo with oil before the first start and avoid pushing the engine hard when cold, to maximise the longevity of the part.
Signs of a Worn Turbo on a BMW 3 Series (E46)
On a diesel BMW 3 Series (E46), a turbo nearing the end of its life typically shows itself through a loss of power under acceleration, an unusual whistling noise as the revs climb, blue or black exhaust smoke, and an engine warning light on the dashboard. Excessive oil consumption or a metallic noise from the turbo outlet should also raise the alarm, as these symptoms often precede complete turbocharger failure.
About the New Turbo for the BMW 3 Series
This new turbo is compatible with reference 717478-5003S and is a direct replacement for the original turbocharger fitted to certain diesel BMW 3 Series (E46) models. It is designed to restore the vehicle's original performance across all body styles — saloon, touring, compact, coupé and cabriolet — while meeting the boost pressure tolerances specified for this engine.
Engine Compatibility and Reference Check
This new turbo is intended for diesel engines fitted with the M47 D20 (204D4) unit, with an engine capacity of 1995 cm³, as found on the 318d, 318td, 320d, 320td and 320Cd variants of the 3 Series (E46). Before placing an order, it is essential to check the reference number on your old turbo to confirm exact compatibility with your vehicle, as commercial designations can vary by market and production year.
Warranty and Delivery of the BMW 3 Series Turbo
This new turbo is sold as a straightforward purchase: there is no old unit to return, the vehicle does not need to be kept off the road, and the order results in a single delivery. It carries a 12-month parts warranty, subject to fitting by a qualified professional. Payment can be spread over multiple instalments, in up to 10 instalments.
Fitting and Maintenance Advice
On the M47 D20 engine, the majority of turbo failures stem from insufficient lubrication caused by poor-quality oil, missed oil changes, or a clogged oil filter. A blocked air filter or a damaged intercooler can also contribute to premature turbocharger wear. Before fitting, check the oil circuit, the condition of the hoses, and the cleanliness of the air intake. After installation, prime the turbo with oil before the first start and avoid pushing the engine hard when cold, to maximise the longevity of the part.
Frequently asked questions
Everything you need to know before ordering your part.
