Friday, July 1, 2022

Very short - howl / whirl noise at start

My S550 just started a troubling howling or whirling sound at startup. I am not the best at noise descriptions but hopefully that is close enough. The noise last maybe 2 seconds and then stops. It only happens if the car has been sitting. If I stop and restart the car it sounds just fine and then noise does not continue. My thought was that it might be the ABC system. I have run into some issues with the system in the past year or two, first with a hose that blew a leak and then later I... Very short - howl / whirl noise at start
My S550 just started a troubling howling or whirling sound at startup. I am not the best at noise descriptions but hopefully that is close enough.

The noise last maybe 2 seconds and then stops. It only happens if the car has been sitting. If I stop and restart the car it sounds just fine and then noise does not continue.

My thought was that it might be the ABC system. I have run into some issues with the system in the past year or two, first with a hose that blew a leak and then later I...

Very short - howl / whirl noise at start

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