Annoying Squeak

[Beeejayteee]

Hi, I have a 2009 c5 2ltr vtr+nav. Had it about 3yrs now. About 10 mths ago started with this really annoying squeak under front right of the car, sounds like an angry mouse, today decided I was going to get to the bottom of this so armed with my tin of silicone spray I sprayed virtually anything i thought could make the noise, strut end, suspension arms engine mountings all to no avail. Is there anyone out there that can stop me going insane!!! Thanks

[Johndouglas]

Did you spray the two bearings on the antiroll bar? I've had those go noisy on previous cars. You may have to remove the undertray to reach them.

[paul.h]

Have you checked if it is coming from one of the auxiliary or timing belt pulleys ? Is it road speed or engine speed related ? Can you get the noise if you bounce the corner of the car up and down without the engine running ? If so then it could be one of the suspension arm pivot bushes or the swivel ball joints. If not then possibly brake related and the brakes may need cleaning.

[Beeejayteee]

Thanks for your reply guys, it's definitely connected with car movement rather than engine movement. Go over uneven road and it starts no noise on smooth roads. I will strip back any other potential joints, bushes, bearings etc and give them a squirt. Thanks again and any other suggestions welcome

[paul.h]

Anti roll bar drop links when worn can be noisy over bumps. On our previous C3 they made a knocking noise. To test yours you could undo one end. If you put wd40 or similar into a ball joint that has grease in it, then the grease will be washed out and the joint will wear quickly unless you put some grease back in later.