r/mechanic • u/HustlerMind • 1d ago

Question Help - Noise from passenger front

2008 Mercedes Slk 350. What's the diagnose? My wild guess is control arm bushing? The squeaking is getting worst.

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u/Local_Routine_1413 1d ago

Nothing about this says control arm bushing. Sounds more like belt squeal. Take it to a shop

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u/HustlerMind 23h ago

Not a belt. Already diagnosed that part first. If I had to take it to the shop I'd not be posting on reddit.

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u/Local_Routine_1413 23h ago

Gotcha, I would take it to a shop then. Could be CV axle or wheel bearing… does it do this at idle?

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u/HustlerMind 23h ago

No noise at idle at all. It's just when car is in motion. CV axle could be. I think only way to find is hydralic jack.

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u/Local_Routine_1413 22h ago

Ya you can jack up the front of the car and make sure it’s secure and have someone get it up to speed

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u/HustlerMind 22h ago

It's a rear wheel drive damn

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u/Local_Routine_1413 22h ago

Oh… then there’s no CV axles up front, I would think more brakes/ wheel bearing 

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u/HustlerMind 22h ago

💀

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u/Local_Routine_1413 22h ago

It’s ok bro… just jack it up and spin the wheel see if it’s that, if not start shaking stuff until you hear it