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Mechanical grinding noise has mechanic stumped...


Mylo2912
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Hello. I'm running an Arosa 1.0 mpi on JOM coilovers. It's nearly done 90k.

Recently when turning to the right on full lock there's been a nasty mechanical thunk. I've been ignoring it and not turning full lock.

Then on Friday a similar grinding, mechanical thunk appeared when setting off in a straight line, and travelling up to around 10mph. It's easy to hear and is speed related as its clunks increase with speed until it disappears. This happens everyone now.

I took it to my local mechanic who had it for the day, took it for a test drive but couldn't suggest what the noise could be. He began by suggesting I should return the suspension to standard and start replacing things. Helpfully quoting me around £400.

I told him the coilovers cost less than £200, and that I'd get another opinion. Previously he suggested the lowered suspension would be putting strain on the drive shafts. I thought coilovers dropped the height of the body relative to the ground and the drive shaft geometry would remain the same???

Either way, has anyone a clue what the noise could be? I'm an amateur, but I'm fairly sure a wheel bearing would make a constant drone, not a gradual clunk.

Any help or sarcastic humor greatly appreciated. Thanks.

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Took second mechanic for a drive. Only after several miles and the engine being warmed up did the noise reappear. Really loud speed related knocking/grinding coming from front wheels. I thought it was passenger side, mechanic said drivers side. He took it away and replaced offside drive shaft. All better now. Just thought I'd post in case anyone else had similar symptoms.

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Just seen the vid. Was gonna say driveshaft, my polo is making the exact same noise! Glad you got it sorted fella, surprised the first mechanic didn't diagnose that tbh.

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