New BMW X6 Turbo – Ref. 49131-07271

Diagnosing a faulty turbo on a BMW X6 35i before replacement

Before ordering a new turbo for your BMW X6 35i, it is essential to confirm that the fault lies with the turbocharger itself and not with another component in the air or exhaust circuit. On the twin-turbo petrol engine N54B30A or N55B30A fitted to the X6, clear signs of turbo failure include a noticeable loss of power, a high-pitched whistle under acceleration, blue smoke from the exhaust, or an engine warning light accompanied by a fault code related to boost pressure. Checking the axial and radial play of the shaft, carrying out a visual inspection of the turbine blade, and reading fault codes with a diagnostic tool will confirm the source of the problem before any replacement is carried out.

Turbo compatibility for the BMW X6

This new turbo is compatible with reference 49131-07271, used on the BMW X6 35i producing 306 hp, a 2979 cm³ petrol engine with engine codes N54B30A and N55B30A. This model uses a twin-turbo configuration, and this turbo corresponds to one of the two elements of the forced-induction assembly. Before placing an order, it is recommended that you check the reference printed on your old turbo or on the vehicle's identification plate to ensure perfect compatibility.

Equivalent references

• 49131-07270
• 49131-07271
• 49131-07272
• 49131-07273
• 49131-07338
• 49131-07339

Exchange and warranty for this BMW X6 turbo

This new turbo is sold on an exchange basis: in accordance with our Terms and Conditions, return of the old turbo is required. It is only collected after the new turbo has been delivered and fitted, so your BMW X6 is not left off the road unnecessarily. The new turbo comes with a 12-month parts warranty, subject to fitting being carried out by a professional. Payment can be spread over multiple instalments, in up to 10 instalments.

Fitting advice for the BMW X6 35i

On a twin-turbo engine such as the N54B30A or N55B30A, the quality and frequency of engine oil changes play a decisive role in the longevity of both turbos. A clogged air filter, a cracked intercooler hose, or a poorly secured air intake can also cause premature failure. Before fitting, check the oil circuit (feed and return lines), the condition of the boost hoses, and the cleanliness of the air intake. When starting the engine for the first time, prime the new turbo with oil to ensure immediate lubrication of the bearings and prevent any dry running on first start-up.

This same turbo also fits

• New BMW Série 3 Turbo – Ref. 49131-07271