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#1
10-28-2015, 07:41 PM
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C230 98 Wobble/Knocking
I have been battling the sounds for a month now. Ive done the following to try to locate and fix it. I feel as if it got worse. In the beginning I changed:
1. Alternator 2. Waterpump 3. Steering Column and Damper - included outer tie rods That didn't do anything. So I heard the noise under the shifter. Looked under car and my Flex Joint was pretty worn, hard as a rock. Changed BOTH front and rear and transmission one as well. This fixed the metal clunking issue when I drive. BUT... there is still a wobble sound coming from under the car. When I listed to it it is coming from the same area where the flex join is under the shifter. I checked to see if the heat shield maybe collapsed and rubbing on the shaft but don't think thats the problem. What could this be? Im hoping nothing with my transmission or engine itself. Any help is appreciated!! 
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#2
10-28-2015, 10:39 PM
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I jacked up the car and it looks like my driveshaft is wobbling slightly. You can see unless you do slow motion on the phone. I used an iPhone and did the slow mow and its wobbling slightly. Does this mean the drive shaft support bearing is bad?
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#3
10-29-2015, 12:27 AM
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When replacing flex discs its a good idea to replace the center bearing and carrier bushing as well. It is very likely a worn center support bearing and bushing.
__________________
-diesel is not just a fuel, its a way of life-  '15 GLK250 Bluetec 118k - mine - (OC-123,800) '17 Metris(VITO!) - 37k - wifes (OC-41k) '09 Sprinter 3500 Winnebago View - 62k (OC - 67k) '13 ML350 Bluetec - 95k - dad's (OC-98k) '01 SL500 - 103k(km) - dad's (OC-110,000km) '16 E400 4matic Sedan - 148k - Brothers (OC-155k)
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#4
10-31-2015, 04:33 PM
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FYI
If the new flex disc is not installed correctly, it can cause noise, vibration, and premature failure.
Flex Disc Orientation, safety and durability issue. .
__________________
ASE Master Mechanic https://whunter.carrd.co/ Prototype R&D/testing: Thermal & Aerodynamic System Engineering (TASE) Senior vehicle instrumentation technician. Noise Vibration and Harshness (NVH). Dynamometer. Heat exchanger durability. HV-A/C Climate Control. Vehicle build. Fleet Durability Technical Quality Auditor. Automotive Technical Writer 1985 300SD 1983 300D 2003 Volvo V70 https://www.boldegoist.com/
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#5
10-31-2015, 08:22 PM
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Its the center support bearing or center support
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