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How to Replace the EGR Valve on a Mercedes GLA

Model: Mercedes Gla W156, MK 1 - Years: 2013, 2014, 2015, 2016, 2017, 2018, 2019
Part: EGR valve

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Video tutorial

When the engine starts to lose power, produce smoke from the exhaust, and make unusual noises, it indicates a malfunction. In some cases, the issue relates to belt wear, while in others, the EGR valve is the problem.

On Mercedes GLA vehicles, to remove the valve, open the bonnet and then unscrew the nut securing the valve using a Torx key. Once the valve is removed, you can clean it; a simple degreaser will allow you to clean and repair the valve without further issues.

If the problem persists, replace the valve.


Updated on 7 November 2026 by ScegliAuto


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