Why does the Tire Pressure Monitoring System TPMS warning light stay on intermittently in my Mercedes-Benz despite correct tire inflation?

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Why does the Tire Pressure Monitoring System TPMS warning light stay on intermittently in my Mercedes-Benz despite correct tire inflation?

Talha Kyanii asked on 11 Oct 2025 11:24:25 am

1 Answer

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Gari Master - on 11 Oct 2025 11:25:11 am

Frequent tire pressure s in colder weather are common due to:

Temperature fluctuations: Cold air contracts inside tires, lowering pressure. Islamabad’s winters can cause noticeable s.

Valve leaks: Aging o r damaged valve stems often leak air slowly.

Minor punctures: Small nail o r thorn punctures may cause slow leaks without visible damage.

Tire bead leaks: Poor sealing between tire and rim can let air escape.

What to do:

Check and replace valve stems if old o r leaking.

Inspect tires carefully for punctures o r rim damage.

Maintain tire pressure regularly, especially during temperature changes.