purchased 2001 c320 117k miles rattling sound..
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2001 C320 Automatic
purchased 2001 c320 117k miles rattling sound.. ** VID UPDATE plz help
i just bought a mercedes 2001 c320 amazing car ! woot!. I purchased it from a responsible and honest software programmer that just wanted to commute from work to home. He has every receipt and service a and b performed on the date it was due. I bought the car for 6500$. and now i don't think I've heard it get progressively worse because its such a mild rattle. i am reading now that its the catalytic converter. 
theres not service codes that have popped up no malfunction codes or anything. Please help me. my local mechanic said it might be some protective plastic barrier .
theres not service codes that have popped up no malfunction codes or anything. Please help me. my local mechanic said it might be some protective plastic barrier .
Last edited by Ivanrad; Sep 10, 2011 at 10:25 AM.
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From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
I have no idea what your mechanic is talking about unless he means a loose exhaust heat shield.
Please try to explain this rattle & where it is coming from. Try & post a clip of the noise.
It could be anything from a Cat to a loose exhaust baffle to the purge valve ticking to a damaged suspension bush or rubber or if in the engine a small end bearing.
Take the car to Autozone to read codes just to make sure. It's free
Please give us more information & location.
Please try to explain this rattle & where it is coming from. Try & post a clip of the noise.
It could be anything from a Cat to a loose exhaust baffle to the purge valve ticking to a damaged suspension bush or rubber or if in the engine a small end bearing.
Take the car to Autozone to read codes just to make sure. It's free
Please give us more information & location.
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2001 C320 Automatic
i just opened the hood and it seems to be originating in the belt area of the front. nothing looks loose. the car was involved in an accident and had the radiator replaced maybe that plays a part in it. Ill post a video soon. crossing my fingers .
autozone in california doesn't read codes for free anymore i just called .
Driving to the store really quick to see if the noise becomes different.
crossing my fingers .autozone in california doesn't read codes for free anymore i just called .
Driving to the store really quick to see if the noise becomes different.
Last edited by Ivanrad; Sep 8, 2011 at 10:14 PM.
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From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
Ah - OK so it's belt area. So it could be a tensioner, alternator, A/C compressor, PS pump, timing chain etc. Most likely just a pulley.
Buy yourself a $50 OBDII scanner from Harbor Freight. Best cheapie on the market. You can't own one of these cars without one.
Remove the Poly V belt & see if the noise goes away. First check!
Obviously do not run the car for too long without the belt or it will overheat without the waterpump running.
Good luck!
Buy yourself a $50 OBDII scanner from Harbor Freight. Best cheapie on the market. You can't own one of these cars without one.
Remove the Poly V belt & see if the noise goes away. First check!
Obviously do not run the car for too long without the belt or it will overheat without the waterpump running.
Good luck!
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From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
You might have a compressor on the way out or it could just be the extra load on the system. Take the belt off & check everything it drives for noise. Also try & listen to another V6 Benz. The front end of these engines is not dead quiet.
The fact that the car was in an accident could mean something got damaged. Radiator might have clouted the A/C compressor. Also check the fan for damage. When you turn on the A/C the fan starts immediately.
The fact that the car was in an accident could mean something got damaged. Radiator might have clouted the A/C compressor. Also check the fan for damage. When you turn on the A/C the fan starts immediately.
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2001 C320 Automatic
would this be reliable?
http://www.buy.com/retail/product.as...lerid=26076229
http://www.buy.com/retail/product.as...lerid=26076229
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c240
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2001 C320 Automatic
also what about my smog , my cat passed the smog test, does that mean my cats are good
http://www.youtube.com/watch?v=2Ao6ZJr3GH0
updated video
http://www.youtube.com/watch?v=2Ao6ZJr3GH0
updated video
Last edited by Ivanrad; Sep 9, 2011 at 02:45 PM. Reason: video
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From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
If you passed smog your Cats are still effective.
I suggest that you buy a scanner that tells you what the code means without having to look it up & is known to behave with Benz. The little guy above is the cheapest that guaratees this which is why it's popular on this forum. One that you can keep in the glove box.
You can of course buy bigger units - here is what I use from Equus.
I suggest that you buy a scanner that tells you what the code means without having to look it up & is known to behave with Benz. The little guy above is the cheapest that guaratees this which is why it's popular on this forum. One that you can keep in the glove box.
You can of course buy bigger units - here is what I use from Equus.
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From: fort worth, tx
06 C230 SS 6spd
Heres what I use. But as Glyn stated above, check everything along the belt. Sounds like it might just be the load from the ac compressor or something got messed up in the accident.
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2001 C320 Automatic
okay sounds good . i might be just being paranoid the car in anyway isnt changing the ac hasnt gotten worse all the filters are in the right place and clean . its gotta be that belt , ac or something else . doesnt the smog guy listen for sounds ?
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C230 Sport Coup + 2006 W164 ML350 + 99 Ford Escort RIP
Does it make noise at ilde?
Belt tensioner and pulley is a common and easily fixed failure.
The plastic barrier your mechanic mentioned is probably the shield under the car.
They are a pain.
Belt tensioner and pulley is a common and easily fixed failure.
The plastic barrier your mechanic mentioned is probably the shield under the car.
They are a pain.
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2001 C320 Automatic
http://www.youtube.com/watch?v=2Ao6ZJr3GH0
video of the issue thanks for your help
video of the issue thanks for your help
Last edited by Ivanrad; Sep 9, 2011 at 03:02 PM.
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late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
Those HVAC fan speed characteristics are normal.
You need to check that the gas pressure in the A/C system is not too high. But I suspect that the problem is the compressor or it's pulley. I strongly recommend that you have the compressor removed & checked. The pulley can shear off by design on these compressors & do incredible damage.
You need to check that the gas pressure in the A/C system is not too high. But I suspect that the problem is the compressor or it's pulley. I strongly recommend that you have the compressor removed & checked. The pulley can shear off by design on these compressors & do incredible damage.
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sounds more like a tensioner going out. It usually makes more noise with the AC on because the AC is an extra load on the tensioner and it rattles. alot of times you can turn on the AC and watch the tensioner vibrate more, a dead give away.
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2001 C320 Automatic
Update* Ac compressor is fine. Airways needed to be cleared of debris
I had a mechanic carefully listen and diagnose my ac compressor sound issue turns out mine sounds excellent blows cold but needs the canal near the windshield , to be cleaned bunch of leaves and pine needles in there. easy fix.!
Thanks everyone for your help.
Thanks everyone for your help.
