Chirping sound

05 MB Komp · 06-16-2012, 01:44 PM

Hey guys,

My 2008 C300 sat for a couple weeks while I was on vacation and now it is making a strange sound that is coming from the motor. It kind of sounds like a chirp, it happens when I am driving and while it is idling.

Here is the weird part though, it only does it after about 5 minutes of running and it will go away after 10 minutes or so.

It is driving me nuts and I need to figure out what is doing it.

Any ideas?

Thanks

To remove this ad, register today or login if you already are registered!

j21importer · 06-16-2012, 02:13 PM

the belt is common for this type of noise after sitting for a while. i have corrected it many times by using some needle nose pliers and very lightly touching some sand paper to the belt while its running. ( Be careful, dont need to go overboard just gently against the belt for 2-3 seconds should do it, if thats what your problem is. Otherwise it could be the idler pulley next to the water pump.

05 MB Komp · 06-16-2012, 02:19 PM

Quote:

Originally Posted by j21importer

the belt is common for this type of noise after sitting for a while. i have corrected it many times by using some needle nose pliers and very lightly touching some sand paper to the belt while its running. ( Be careful, dont need to go overboard just gently against the belt for 2-3 seconds should do it, if thats what your problem is. Otherwise it could be the idler pulley next to the water pump.

The inside part of the belt or the outside part?

I will give it a try tonight.

Thanks

j21importer · 06-16-2012, 02:26 PM

inside part with the ribs usually does it, good luck.

2012c350 · 06-16-2012, 09:14 PM

As was mentioned, it definitely sounds like a belt/pulley issue. But before I'd apply any lubricant or 'sand' a belt, I'd just let it go for a few hundred miles and see if it goes away naturally...I'm thinking it most likely will.

vanbong84 · 06-17-2012, 10:45 AM

Lucky u my belt was half shredded so I had the chirping sound nonstop. Thank god for warrenty

olive1 · 06-17-2012, 12:02 PM

For me, I hear a metallic sound at the back of my car... It's a new w204 2012... I become really nervous with this!

06-16-2012, 09:14 PM	#5
2012c350 Senior Member Garage is empty, add now Join Date: Oct 2011 Location: Pittsburgh, PA Posts: 320 Drives: 2012 C350 / 2001 F150 4x4 / 1998 Cobra Convertible	As was mentioned, it definitely sounds like a belt/pulley issue. But before I'd apply any lubricant or 'sand' a belt, I'd just let it go for a few hundred miles and see if it goes away naturally...I'm thinking it most likely will. __________________

06-17-2012, 12:02 PM	#7
olive1 Junior Member Garage is empty, add now Join Date: Apr 2012 Location: Belgium Posts: 33 Drives: Mercedes w204 2012	For me, I hear a metallic sound at the back of my car... It's a new w204 2012... I become really nervous with this! __________________ www.premiumcars4um.com

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search
Display Modes	Rate This Thread
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode	Rate This Thread:

06-16-2012, 02:13 PM	#2
j21importer Member Garage is empty, add now Join Date: Sep 2010 Location: IL Posts: 144 Drives: 08 GSXR1000, 2007 C230 SPORT, 89 190E	the belt is common for this type of noise after sitting for a while. i have corrected it many times by using some needle nose pliers and very lightly touching some sand paper to the belt while its running. ( Be careful, dont need to go overboard just gently against the belt for 2-3 seconds should do it, if thats what your problem is. Otherwise it could be the idler pulley next to the water pump.

06-16-2012, 02:26 PM	#4
j21importer Member Garage is empty, add now Join Date: Sep 2010 Location: IL Posts: 144 Drives: 08 GSXR1000, 2007 C230 SPORT, 89 190E	inside part with the ribs usually does it, good luck.

06-17-2012, 10:45 AM	#6
vanbong84 Junior Member Garage is empty, add now Join Date: Feb 2012 Location: EL Sobrante, CA Posts: 64 Drives: 2008 mercedes-benz c300 4matic sport	Lucky u my belt was half shredded so I had the chirping sound nonstop. Thank god for warrenty

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)