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  #16  
Old 03-22-2001, 07:15 PM
MBenzNL's Avatar
MBenzNL
 
Join Date: Jan 2001
Location: the Netherlands
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Lots of suggestions, lots of ideas...

David,
Have your wheels balanced again, take a look when they do it and if you pay attention, you might notice a wobbling tire (Yokohama , not on a Benz) or rim.
Nothing to worry about...keep the shocks, keep the steering damper and just finish wearing this set of tires and buy some real ones next time.

greetingz,
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1990 300SL-24
1993 C250D
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www.MBenzNL.com
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  #17  
Old 03-22-2001, 11:46 PM
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Location: New Bedford, MA USA
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Get the tires rebalanced. You are describing a classic balance problem.
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Jeff Lawrence
1989 300e
2000 Dodge Grand Caravan SE
No matter what you fix, there will always be something else to fix..
"Warranty" is just another way of postponing the inevitable.
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  #18  
Old 03-25-2001, 04:40 PM
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Location: Northumberland, UK
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David,

My C has a very slight vibration at about 60-70mph. It used to be a lot worse, but I had the wheels balanced at a MB dealership and it was improved so much I don't really notice.

The other thing I did was to buy a good digital tyre pressure guage (about 10 pounds or $15). Keep an eye on tyre pressures: makes a huge difference to straight line traking, traking under braking, handling and vibration. Checking the tyre pressures is the cheapest fix and often it the only fix needed.

Glad to hear your C280 is rewarding at high speeds. My C is good at 85-100 mph too; even my humble 2 litre 4 pot feels strong at those speeds! After all, that was the speed it was designed to operate at.
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  #19  
Old 03-25-2001, 05:15 PM
David C Klasse's Avatar
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Location: Mission Hills in the City of San Diego
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I bought a regular tire pressure gauge for $1.99 at a hardware store. I have been keeping tabs on the pressure. It really isn't much of a vibration. Just slight from 45-65 mph or so. Other than that, it's fine. They probably just need to be balance. Maybe I will get this done at MB. Not a big deal really at all though.
I am glad your MB rus great at high speeds too... what fun they are to drive so fast!!
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2006 E350 w/ 155k miles (Daily Driver)

Previous:
1993 300E 3.2L Sedan w/ close to about 300k miles
2003 E500 Brilliant Silver (Had 217k miles when totalled!)
1989 300E with 289,000 miles (had for <1 yr while in HI)
03 CLK 500 cabrio (Mom's)
2006 C230k (Dad's)
1999 S420 (Mom's/Dad's)
2000 C230k Sport sedans
2001 CLK320 Cabrio (Mom's)
1995 C280 My First Mercedes-Benz... (155k miles. EXCEPTIONAL AUTOMOBILE. Was Very hard to let go of!)
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  #20  
Old 03-25-2001, 11:52 PM
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Join Date: Feb 2001
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Do you ever think that MB might just incorporate an onboard gauge for all four tyre pressures ... might be quite essential. Would rather check the tyre pressures from the driver's seat than having to go out and getting my hands a little black from removing the steel caps and sticking that gauge manually into all four tyres.

Has the balancing been performed on this thread?
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  #21  
Old 03-25-2001, 11:55 PM
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YMSin,
Has the balancing been performed on this thread? What do you mean? If it's have I had them balanced sinced this thread, the answer is no, but that is probably the reason it does vibrate somewhat. I am getting the damper tomorrow in the mail, probably. I need help on how to change it!! ASIST ME!!!
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2006 E350 w/ 155k miles (Daily Driver)

Previous:
1993 300E 3.2L Sedan w/ close to about 300k miles
2003 E500 Brilliant Silver (Had 217k miles when totalled!)
1989 300E with 289,000 miles (had for <1 yr while in HI)
03 CLK 500 cabrio (Mom's)
2006 C230k (Dad's)
1999 S420 (Mom's/Dad's)
2000 C230k Sport sedans
2001 CLK320 Cabrio (Mom's)
1995 C280 My First Mercedes-Benz... (155k miles. EXCEPTIONAL AUTOMOBILE. Was Very hard to let go of!)
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  #22  
Old 03-25-2001, 11:57 PM
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Location: New Bedford, MA USA
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David, replacing the damper is a pretty straight forward job. Get the car up in the air, remove the old one, slap in the new one.
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Jeff Lawrence
1989 300e
2000 Dodge Grand Caravan SE
No matter what you fix, there will always be something else to fix..
"Warranty" is just another way of postponing the inevitable.
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  #23  
Old 03-26-2001, 12:00 AM
David C Klasse's Avatar
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Oh Jeff, I could have figured that one out!! But where is it? What kind of tools do I need? ETC. I have not the slightest idea where to start!
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2006 E350 w/ 155k miles (Daily Driver)

Previous:
1993 300E 3.2L Sedan w/ close to about 300k miles
2003 E500 Brilliant Silver (Had 217k miles when totalled!)
1989 300E with 289,000 miles (had for <1 yr while in HI)
03 CLK 500 cabrio (Mom's)
2006 C230k (Dad's)
1999 S420 (Mom's/Dad's)
2000 C230k Sport sedans
2001 CLK320 Cabrio (Mom's)
1995 C280 My First Mercedes-Benz... (155k miles. EXCEPTIONAL AUTOMOBILE. Was Very hard to let go of!)
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  #24  
Old 03-26-2001, 03:29 PM
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MBenzNL
 
Join Date: Jan 2001
Location: the Netherlands
Posts: 1,417

The picture above is taken from the bottom side of my car. The black plate with the rusty scratches is the steel carter protection under my engine. The higher gray plate is the isolation plate under the transmission box. The steering damper is situated above the front side of the trans isolation plate. You need 2 wrenches #17...

greetingz,
__________________
1990 300SL-24
1993 C250D
with a minor 600+k kilometer
www.MBenzNL.com
(the Netherlands)
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  #25  
Old 03-26-2001, 03:51 PM
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Location: Mission Hills in the City of San Diego
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Thanks MBenz...
I got the damper this morning, went and bought some ramps and an oil filter. I will attempt to change the damper and the oil and filter tomorrow. Thanks for the help.
__________________
2006 E350 w/ 155k miles (Daily Driver)

Previous:
1993 300E 3.2L Sedan w/ close to about 300k miles
2003 E500 Brilliant Silver (Had 217k miles when totalled!)
1989 300E with 289,000 miles (had for <1 yr while in HI)
03 CLK 500 cabrio (Mom's)
2006 C230k (Dad's)
1999 S420 (Mom's/Dad's)
2000 C230k Sport sedans
2001 CLK320 Cabrio (Mom's)
1995 C280 My First Mercedes-Benz... (155k miles. EXCEPTIONAL AUTOMOBILE. Was Very hard to let go of!)
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  #26  
Old 03-26-2001, 07:50 PM
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Join Date: Feb 2001
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Hope it works out well.



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... Kerry

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  #27  
Old 03-29-2001, 09:58 PM
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Join Date: Mar 2001
Posts: 51
I believe you will find the centrifical force exerted above 60 MPH will "hide" slight imperfections in tire balancing, tire roundness, and even wheels that are not true. But you can be sure your tires are suffering at the higher speeds, because you haven't really "fixed" the problem. Besides, 50-60MPH is a fairly common speed and you will surely feel the vibration at that speed. The suggestion to check thoroughly for a bent wheel is really your best bet.

If you are really bugged by the vibration and can't find an obvious cause such as a bent wheel, find a place that balances the front tires WHILE ON THE CAR. Some of the Shell repair facilities can do it--requires a special machine, not like the units that spin balance the tire while off the car. By balancing tires on the car, you can compensate to some degree for balance imperfections in the wheel and rotor. The down side is if you ever remove the wheel for any reason, you need to mark the wheel in relation to the lug bolt and replace it in the exact same hole to preserve your balance.
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  #28  
Old 03-29-2001, 10:07 PM
David C Klasse's Avatar
CheFrac is Back!
 
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Location: Mission Hills in the City of San Diego
Posts: 2,352
Thank you for your reply downy.
But I figured out how to change the damper, DUH, wasn't hard at all! I changed it with relative ease, albeit hitting the gym set when the ramps slid forward because I pushed the brake too hard. But my avantgard grill held up well!!
The vibration is about 80% improved. There is still a very very sligh vibration between 50 and 60 though, which is probably due to the need of that "special" balancer I can do at shell. We'll see if I end up doing it though.
In any event, it is vastly improved and old damper was useless. Probably never changed on the car before. You could pull and push on it with no resistance. I feel less of the bumps in the road in the wheel too.
Thank you everyone. Another successful "adventure" you all have helped and guided me with!
__________________
2006 E350 w/ 155k miles (Daily Driver)

Previous:
1993 300E 3.2L Sedan w/ close to about 300k miles
2003 E500 Brilliant Silver (Had 217k miles when totalled!)
1989 300E with 289,000 miles (had for <1 yr while in HI)
03 CLK 500 cabrio (Mom's)
2006 C230k (Dad's)
1999 S420 (Mom's/Dad's)
2000 C230k Sport sedans
2001 CLK320 Cabrio (Mom's)
1995 C280 My First Mercedes-Benz... (155k miles. EXCEPTIONAL AUTOMOBILE. Was Very hard to let go of!)
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  #29  
Old 03-29-2001, 10:39 PM
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Driver, Mercedes-Benz
 
Join Date: Feb 2001
Location: Malaysia
Posts: 1,645
The special balancer is sometimes known as an "on-wheel" balancing where the front tyres are jacked up one at a time, and a rotating machine is placed on the elevated tyre to simulate the actual driving speed on that particular tyre. Adjustment weights are then fixed to the wheel - and quite a matter of subjective judgment on the part of the person doing it. So, it might be worth the while to go to a reputable shop for this on-wheel balancing or you might just get ripped off (its more costly too).
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