Please help!

[Theos1102]

I have a 2010 Mercedes 300c 4matic sport. There is a grinding/ scratching noise coming from the front end that increases with speed. I’m not sure if it’s brakes, wheel bears or something worse.

 

[Theos1102]

There is a grinding/ scratching sound coming from my front end that gets faster as I speed up. I’m not sure what it could be please help me.

 

[Blobcat]

Hello and welcome,

Jack the car up and spin the wheels - see which side is causing the noise - then take the wheel off and check - could be worn out brakes or a number of things

 

[Theos1102]

Hello and welcome,

Jack the car up and spin the wheels - see which side is causing the noise - then take the wheel off and check - could be worn out brakes or a number of things

I’m currently recovering from shoulder surgery so I’m unable to jack the car up at the moment. I don’t believe it to be the brakes the sound doesn’t seem to change when or if I use the brakes and the car stops smoothly. The noise also is present when the car is coasting in neutral however it does seem slightly louder when I accelerate than it does on decel.

 

[SL63 Mark]

Could be wheel bearings, or possibly noisy alternator belt or pulley.

 

[KennyN]

Possibly a bit of road debris stuck in the disc backplate.

K

 

[Jason63]

A stone stuck between the back plate and disc makes a terrible sound.

Sometimes reversing can remove a stone.