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1999 C230 Kompressor
Joined
272 Posts
Discussion Starter · #1 ·
Hello All,

Within the last 2 months, I've noticed a squeaking noise coming from the front right side of my car at low speeds (under 5mph) with each rotation of the wheels. It sounds like it's coming from between the radio area and the passenger side foot area under the car. The sound is similar to a dragging squeaking brake rotor that has a "sweet spot" that sticks at a certain point of it's rotation but isn't as I've manually tested it by spinning the wheels when the car was lifted off the ground. About a year ago, I did a front suspension refresh (new ball joints, tie rod ends, LCA bushings, etc.) I also changed my shocks last week along with the front wheel bearings. The sound was prevalent before I did those two however.

Any idea on what this could be? I have drove the car without the undercarriage splash guard for the past two years as I live in California and never really drive through puddles and the old one was broken and just got in the way. The sound is most prevalent when the car is in drive and moving forward with the foot off the brake without pressing the gas pedal and turning to park.
 

W163 and General M Gremlin
Joined
16,982 Posts
Are you sure it's under the car?
Check you blower fan (located under the glove box) in the PS footwell, just above. Easy access to replace.
As the car ages, the blower fan squeals an low dial speed and may disappear on higher speeds.
 

Registered
1999 C230 Kompressor
Joined
272 Posts
Discussion Starter · #3 · (Edited)
Interesting, I never thought of that. I鈥檒l have to have someone drive while I listen down there later today. I would think that I would notice it when turning off the fan as the turbine winds down to a stop but it鈥檚 worth a shot. I'm %99 sure that's not it though because the sound only occurs at a certain point of the wheel rotation. Example, If I put the car in drive and let off the brake, at 3 feet, the squeak will occur and then I could stop, put the car in reverse, and replicate the sound again.
 
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