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What is the recommended tire pressure for the Mercedes-Benz GLS450 spare tire?

2 Answers

DiLucy

07/28/25 11:06pm

Mercedes-Benz GLS normal tire pressure ranges between 2.2~2.9. Normal tire pressure: The standard tire pressure for Mercedes-Benz GLS is approximately 2.3 for both front and rear tires. If the rear seats are frequently occupied, the rear tire pressure can be adjusted to 2.5. It is generally recommended to maintain consistent pressure for all tires, as this enhances driving safety. Tire pressure should neither be too high nor too low. Never drive with insufficient tire pressure. Recommendations: It is advisable to regularly check tire pressure. Having a portable air pump or tire pressure gauge is beneficial for emergency situations, such as when a tire loses air or has abnormal pressure. Maintaining proper tire pressure helps reduce fuel consumption, extend tire lifespan, and ensure driving safety.

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KyleFitz

08/12/25 3:31am

I've been driving a Mercedes-Benz GLS450, and its spare tire pressure is usually around 60 PSI. Since this temporary tire is smaller in size, it requires higher pressure to support the weight and ensure safe driving. You can find the exact recommended value in the vehicle's user manual or on the small label on the driver's side door frame. I suggest carrying a small tire pressure gauge to check it regularly and ensure it stays at 60 PSI. Neglecting this could lead to false tire pressure warnings or worse—if the pressure is low when changing a tire on the highway, the car may shake and become unstable, increasing the risk. I once helped a friend with car repairs and encountered a case where he forgot to check the spare tire pressure. When he had to use it in an emergency, the pressure had dropped to 40 PSI, causing the wheel to deform while driving, nearly leading to an accident. Fortunately, he stopped in time to address the issue. Developing a habit of checking it quarterly can help avoid such troubles and ensure the spare tire performs reliably in critical moments.

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