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Frequently asked questions about cars and motorcycles

A Potential Issue with the Wastegate System of the Fiat 500L and Panda, Alfa Romeo Mito, and Lancia Ypsilon

Model: Fiat 500 500 L - Years: 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023
Part: Checks and maintenance

See other generations:
Video tutorial

In this video, we can see how the 0.9-litre 2-cylinder Twinair engine exhibits a system problem: the twin-cylinder structure generates extremely high exhaust gas pulsations, which excite the turbine in a non-linear manner, causing a phenomenon known as "surge", with very high peaks over a long period.

This system causes significant wear in the turbo regulation system (also known as the "wastegate"), and despite the materials used for these components being reinforced, they reach wear in a relatively short time.

The only remedy is to carry out a preventive repair using high-quality materials and replacing the timing belt.


Updated on 2 September 2026 by ScegliAuto


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How to open the bonnet on a Volkswagen Golf?

In this tutorial, you will see how to open the bonnet on a Volkswagen Golf MK4. This is a very simple operation that follows the standard procedure. First, open the driver's door, then locate the lever in the lower left area and pull it. Next, move to the front of the vehicle, lift the bonnet slightly, and find the second lever located just above the Volkswagen logo. At this point, simply pull it towards you, fully open the bonnet, and secure it with the prop rod. To close it, gently push it down.

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by ScegliAuto

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