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How to Change the Alternator Belt on a Hyundai i20

Model: Hyundai I20 IB, MK 2, GB - Years: 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
Part: Alternator

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Video tutorial

To change the alternator belt, first locate the tensioner (usually a pulley with a central bolt or pin). Loosen the nuts or bolt of the tensioner (with a 13 or 17 mm spanner, depending on the version) and rotate the tensioner to slacken the belt. Before removing it, take a photo to avoid mistakes during reassembly.

Following the diagram, route the new belt around all the pulleys except for the tensioner; use a lever to slightly tension the tensioner and fit the belt onto the last pulley. Tension the belt and tighten the tensioner nut to a torque of 25/35 Nm. The belt should not be too loose, but also not too tight, or it will squeal.

Run the engine in neutral for a few minutes and check that the belt does not rub or vibrate. Also, ensure that all the pulleys are aligned and turning correctly.


Posted on 5 August 2026 by ScegliAuto


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by ScegliAuto

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