Humming coming from my 01 Boxster, any suggestions on what to look for

[Jasper7821]

Originally Posted by BYprodriver

Best way to listen for a noise is to drive close to a solid wall at night so the noise bounces off the wall back to you, you will be amazed at the difference.

I did that, but unfortunately under about 25mph it doesn’t make the noise. Hard to find a long enough wall with no one around to get up to speed for a few seconds to listen.

[JayG]

Originally Posted by Jasper7821

Thank you, I’ve only had the car for 6 months and it’s been perfect so I haven’t searched other shops yet, but will.
Thank you

Definitely contact your local PCA chapter. You will get some good referrals

[Jasper7821]

Originally Posted by JayG

Definitely contact your local PCA chapter. You will get some good referrals

Will do, thank you

[piper6909]

willw and BYprovider gave excellent tips. Is there a highway you can drive on that has a concrete barrier? It doesn't have to be a building. A 3 foot tall concrete barrier is plenty tall enough to bounce the sound of a bearing. Keep your windows down.
And check with your local PCA for an indy near you.

$1500 to replace a wheel bearing is nuts! The most expensive wheel bearing on Rock Auto is $68. I couldn't find one in our sponsor's site.

[Jasper7821]

Originally Posted by piper6909

willw and BYprovider gave excellent tips. Is there a highway you can drive on that has a concrete barrier? It doesn't have to be a building. A 3 foot tall concrete barrier is plenty tall enough to bounce the sound of a bearing. Keep your windows down.
And check with your local PCA for an indy near you.

$1500 to replace a wheel bearing is nuts! The most expensive wheel bearing on Rock Auto is $68. I couldn't find one in our sponsor's site.

Thank you, I’ll try that and see what happens. And yes, $1,500 is crazy. Less the parts, they’re saying almost 8hrs labor to change 2 wheel bearings.

[P_Carfahrer]

Before tearing anything apart, do a sanity check on your tires even though it is not likely one or more would be bad.

Put on some latex gloves and run your hands over the tread on each tire around the whole circumference to feel for any unevenness, small bump, etc.

I replaced front bearings on my S4 last winter and it turned out in the end to be a tire issue.

I replaced the Boxster bearings two years ago and you do not need to remove the strut/hub assemblies to do so. Youtube has a bunch of vids on wheel bearings and anything BMW related is also similar enough to be instructive.

Bearing manufacturers put minimal grease in bearings so I disassembled mine and repacked them with Redline CV.

[Jasper7821]

Thank you, I will do that although I think the tires are fine, but would be nice if it happened to be a tire.
And I did watch some videos and also one saying to take the bearings apart and add grease.
Hopefully I’ll have time to work on it in the next week or two.
Thanks again

Originally Posted by P_Carfahrer

Before tearing anything apart, do a sanity check on your tires even though it is not likely one or more would be bad.

Put on some latex gloves and run your hands over the tread on each tire around the whole circumference to feel for any unevenness, small bump, etc.

I replaced front bearings on my S4 last winter and it turned out in the end to be a tire issue.

I replaced the Boxster bearings two years ago and you do not need to remove the strut/hub assemblies to do so. Youtube has a bunch of vids on wheel bearings and anything BMW related is also similar enough to be instructive.

Bearing manufacturers put minimal grease in bearings so I disassembled mine and repacked them with Redline CV.