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A Problem Affecting VAG 1.6 Diesel 105 HP Engines

Model: Volkswagen Volkswagen Various
Part: Engine

Video tutorial

This 1.6 TDI 105 HP engine is generally appreciated for its good performance and responsiveness, quietness, and low fuel consumption. However, it has a universally recognised defect concerning the injection system, particularly the high-pressure pump, which over time produces shavings and metallic debris inside.

These particles travel through the injection system and block or damage the injectors, clog the particulate filter, and can damage the EGR valve. If your car has this problem, you may notice increased oil consumption, excessive exhaust smoke, loss of power, performance drops, and engine warning lights.

Unfortunately, this is a very costly repair, as it involves replacing the pump and often the already damaged injectors, as well as cleaning or even replacing the DPF. If you are considering buying a car with this engine (which is fitted to Audi, Volkswagen, Seat, and Skoda), it is essential to be aware of the risk, check the vehicle's maintenance history, and subject the car to a thorough inspection of the injection system before purchase.


Posted on 12 May 2026 by ScegliAuto


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