Noise from *front* of my car

My e38 has started making a mild knocking noise, mainly when I'm backing up, and when the car is cold. Sounds to me like it may be coming from the right side, but hard to tell.
Wheel bearing going bad maybe? Noise vanishes after warmup.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Is it worse when you turn the steering wheel?
Next time you change the oil put it up on blocks and see if you can make it happen by turning the wheel by hand. --scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
wrote:

Thinking low power steering fluid? Nah, I don't think so, in fact, I know it's not that. Turning the wheel doesn't make any difference. I think this sound may be related to a similar, but slightly different sound I get on cold mornings when I'm driving down the road before the car warms up.

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Any of the multitude of rubber bushes or ball joints going bad? ..or is it just the brakes grabbing first thing?
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

If it's actually a bearing, it will usually be worse if the wheel is turned to the side, as it will put more lateral force on the bearing.
Also, it could be something loose scraping against the tire slightly, but that again would change depending on the position of the wheel.
Could even be control arm bushings. But you'll know if you put it up and turn the wheel by hand. --scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
I've the same problem on my 01 e39. It's there when you only pull off and dissappears after 50 yards.
Does yours only happen then the car is moving in gear? If you depress the clutch is it still there? My thinking was perhaps the cluth bearing, car is in next week so will know more then.
I've changed my front upper/lower arms but hadn't thought about a sticking caliper - could be.
let us know how you get on.
wrote:

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.