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sebastianhunter6

AMG GT Brake Pedal Feels Squishy

My 2022 AMG GT with a gasoline engine is giving me weird brake issues. At 113771 km, the brake pedal feels squishy and gives strange feedback. Could undervoltage be the cause?

Summary of the thread

The 2022 AMG GT experienced a squishy brake pedal and strange feedback at 113,771 km. The issue was suspected to be caused by undervoltage, which can affect the brake system even without triggering warning lights. It was advised to check the brake pads and shoes, as worn components could contribute to the problem. After visiting a workshop, the issue was confirmed to be due to both undervoltage and worn brake pads, which were replaced, resolving the problem.

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4 comment(s)

juliusdunkel10

I have a similar AMG GT. Strange brake pedal feel can indicate issues. If the strange feedback is related to undervoltage the car's computer should generate an error. Check if the ABS or ESP lights are on. These systems rely on hydraulic brakes and the brake calipers. Have you checked the condition of the brake pads and brake shoes?

sebastianhunter6 (community.author)

No warning lights are on, which is even more confusing! I haven't actually checked the brake pads/shoes myself yet. Is it likely that undervoltage could cause that kind of brake issue even without any warning lights lighting up on the dash?

juliusdunkel10

Undervoltage can cause unpredictable issues with the brake system even without warning lights. It's difficult to diagnose remotely. Best to get it checked by a workshop, they might be able to find the issue. Replacing worn brake pads on time is always a good idea.

sebastianhunter6 (community.author)

I took it to the workshop, and you were totally right! It was indeed undervoltage messing with the system plus worn brake pads. They sorted it out, new pads all around, and the electrical issue is gone. Cost me about 240€, but totally worth it to have my brakes back to normal!

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