New Audi TT Turbo – Ref. 785448-5005S

Symptoms of a failing turbo on the Audi TT 2.0 TDI 170

On the Audi TT fitted with the 2.0 TDI 170 engine, a turbocharger nearing the end of its life typically makes itself known through a gradual loss of power under acceleration, an unusual whistling noise on the air intake side, thick blue or black exhaust smoke, and sometimes the engine warning light coming on due to abnormal boost pressure detected by the ECU. Higher-than-usual oil consumption is also a common sign of excessive play in the turbo of this sports coupé.

About the new turbo for the Audi TT

This new turbo is compatible with reference 785448-5005S and is aimed at Audi TT owners looking for a reliable part to restore their 2.0 TDI 170 to its original performance. Designed to fit precisely within this engine's architecture, it restores the boost pressure needed for the dynamic driving experience that defines this model.

Engine compatibility on the Audi TT

This turbo is suitable for the 2.0 TDI 170 engine fitted to the Audi TT, available across several engine codes depending on the year and version of the vehicle. Before placing an order, we strongly recommend checking the reference printed on your old turbo or on the vehicle's identification plate to confirm it matches your specific unit.

Equivalent references

• 03L253010E
• 03L253010EV
• 03L253010EX
• 03L253010F
• 03L253010FU
• 03L253010FV
• 03L253010FX
• 03L253019Q
• 03L253019QX
• 785448-5005S

Exchange basis and warranty for your TT

This new turbo is sold on an exchange basis: return of the old turbo is required in accordance with our Terms and Conditions. It is only collected after the new turbo has been delivered and fitted, so your Audi TT is never left off the road during the process. The part comes with a 12-month parts warranty, provided fitting is carried out by a qualified professional. Payment can be spread over up to 10 instalments.

Advice before and after fitting on the 2.0 TDI

Before installing this new turbo on your Audi TT, carefully check the oil circuit (hoses, return line, no blockages), the cleanliness of the air intake and the condition of the air filter, as well as the intercooler for any leaks or fouling. A full oil change using a quality oil suited to the TDI engine is essential, as insufficient lubrication or a contaminated oil circuit are among the most common causes of premature turbo failure on these engines. On first start-up, prime the turbo with oil before starting the engine, then drive gently for the first few kilometres to allow the rotating assembly to bed in properly.

This same turbo also fits

• New Audi A3 Turbo – Ref. 785448-5005S
• New SEAT Altea Turbo – Ref. 785448-5005S
• New SEAT Leon Turbo – Ref. 785448-5005S
• New Skoda Octavia Turbo – Ref. 785448-5005S
• New Skoda Superb Turbo – Ref. 785448-5005S
• New Skoda Yeti Turbo – Ref. 785448-5005S
• New Volkswagen Golf Turbo – Ref. 785448-5005S
• New Volkswagen Passat Turbo – Ref. 785448-5005S
• New Volkswagen Sharan Turbo – Ref. 785448-5005S
• New Volkswagen Tiguan Turbo – Ref. 785448-5005S
• New Volkswagen Touran Turbo – Ref. 785448-5005S