Why is there uneven tire pressure between the front and rear tires on my Mercedes E-Class?

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Why is there uneven tire pressure between the front and rear tires on my Mercedes E-Class?

On my Mercedes E-Class W211, I often find that the rear tires have lower pressure compared to the front tires, despite inflating them equally at the same time. Could this be due to faulty valves, slow leaks, o r sensor calibration problems? How do I properly diagnose and fix this issue?

Talha Kyanii asked on 11 Oct 2025 11:24:10 am

1 Answer

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Gari Master - on 11 Oct 2025 11:25:00 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.