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Drivers have reported hearing a clicking sound from the engine compartment when starting their Mercedes-Benz GLA200d.

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This sound, often referred to as the "cricket sound," indicates that it's time to replace one of the car's consumables: the belt set (tensioner, idler, belt).

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If you're unlucky, the noise might also come from the air conditioning compressor or the generator pulley, which would be the worst-case scenario—let's hope for the best!

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The parts have improved over time, allowing for longer use without issues. However, since these components are not easily monitored, it's best to replace them around 62,137 miles (100,000 kilometers) for peace of mind.

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The parts? Except for the latest models, they all perform well.

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The brand Continental is also famous for its OEM parts.

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They are affordable and of high quality!

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The belt set for Mercedes and imported cars is unified with this.

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The set includes a tensioner, one idler, and one belt, making a total of three components.

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Now, let's proceed with removing the belt set.

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In the case of the Mercedes-Benz GLA200d, the replacement process can be a bit tricky. Unfortunately, it started to rain that day, making it more challenging!

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I removed the passenger side wheel and wheelhouse cover, then disassembled the engine upper mount.

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Alternating between the top and bottom, I completed the removal!

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For reference, since it surpassed 62,137 miles (100,000 kilometers), the condition of the engine mount being removed isn't great either. I want to suggest replacing it while working to save on labor costs.

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However, car owners often don't want to do that.

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Why? They don't realize it will be inconvenient right away!

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If you read this and decided to replace the belt set, consider the engine mount as well!

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I have removed everything.

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The pulley area, which seemed most likely to cause the clicking sound, indeed produced noise when I turned it by hand after long use.

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I have identified the cause, so let's install the new parts right away.

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Working in such a cramped space is quite challenging!

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The mechanics finished the job while maneuvering around on the floor!

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Additionally, since it was raining, the customer requested a wiper replacement!

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We exclusively use Bosch and Valeo products tailored to fit the vehicle, ensuring a perfect fit compared to original parts.

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I secured the wheel bolts using hand tools after removing the wheel.

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As I wrapped up the Mercedes-Benz GLA200d, another vehicle, a 320i, arrived for a belt set replacement.

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This vehicle also had a defective belt set with severe cracks.

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Interestingly, despite this condition, the vehicle operated without making any noise. The owner had accumulated 74,564 miles (120,000 kilometers), so they decided to replace the consumables as part of routine maintenance.

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Perfect timing!

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Returning to the Mercedes-Benz GLA200d, I completed the work.

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Now, let's start it up! We need to ensure there's no noise.

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Everything is working perfectly!

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Since it was raining, I took a quick photo of the Mercedes-Benz GLA200d indoors before handing it over to the owner!

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The belt set has a rather ambiguous replacement interval in terms of automotive consumables.

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If you consider the stress or safety concerns caused by such noises, I recommend replacing it around 62,137 miles (100,000 kilometers).

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After that, you can expect it to last around 124,274 miles (200,000 kilometers).

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Don't let indecision create issues—plan your maintenance and get it done!

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Thank you for reading this post!

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