New SEAT Leon 1.9 TDI Turbo – Ref. 751851-5004S

What changes behind the wheel of your SEAT Leon with a new turbo

On a SEAT Leon fitted with the 1.9 TDI engine, a turbo in good condition makes itself felt from the very first miles: throttle response becomes crisp again at low revs, the engine regains its torque without excessive lag, and driving in town and on the road becomes smooth again, free from hesitation or any sense of being held back. A worn turbo, by contrast, means a gradual loss of power, heavier exhaust smoke, and driving that becomes a chore day-to-day on a model often used for long journeys.

Compatibility of the new turbo for SEAT Leon 1.9 TDI

This new turbo is compatible with reference 751851-5004S, intended for SEAT Leon models fitted with the 1.9 TDI 90 hp and 1.9 TDI 105 hp engines. The engine codes covered are AGR, AHF, AJM, ALH, ASV, ATD, AUY, AVQ, BEW, BJB, BKC, BLS, BRU, BXE, BXF and BXJ. Before ordering, always check the reference shown on your old turbo or on the engine plate of your vehicle, as variants exist depending on the production period.

Warranty and delivery of the SEAT Leon turbo

This new turbo is sold as a straightforward purchase: no return of the old turbo is required, and there is no exchange or deposit scheme. A single delivery is made — the new turbo. The part is covered by a 12-month parts warranty, subject to fitting being carried out by a professional. Payment can be spread over several instalments, in up to 10 instalments.

Fitting and maintenance advice for your 1.9 TDI

On this engine, turbo failure is often caused by insufficient lubrication, poor-quality oil or neglected oil changes, a clogged air filter, or a damaged intercooler allowing contaminants through. Before fitting, check the oil circuit, the condition of the hoses, and the cleanliness of the air intake to avoid contaminating the new turbo. When starting up, prime the oil circuit before the first engine start, then drive gently for the first few kilometres to maximise the longevity of the part.

This same turbo also fits

• New SEAT Altea Turbo – Ref. 751851-5004S
• New Audi A3 Turbo – Ref. 751851-5004S
• New SEAT Ibiza Turbo – Ref. 751851-5004S
• New SEAT Toledo Turbo – Ref. 751851-5004S
• New Skoda Octavia Turbo – Ref. 751851-5004S
• New Volkswagen Bora Turbo – Ref. 751851-5004S
• New Skoda Superb Turbo – Ref. 751851-5004S
• New Volkswagen Golf Turbo – Ref. 751851-5004S
• New Volkswagen Jetta Turbo – Ref. 751851-5004S
• New Volkswagen Passat Turbo – Ref. 751851-5004S
• New Volkswagen Touran Turbo – Ref. 751851-5004S