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#1
10-08-2004, 05:30 PM
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noise at rear wheel/rear axle
I started driving the 230CE, which is basically a 300CD with a 4cyl gas engine, more often and it developed a loud hum at the rear left wheel. The sound is very similar to one you would make when blowing into a bottle but much louder. It isn't constant but it is occuring more often. It seems to go away when I apply the brakes but returns soon after. At first I thought it might be a sticky caliper and I cleaned the caliper and reinstalled the pads but the sound came back after driving it a while again.
It's occuring at most speeds now especially while turning left and lessens on right turns. Any ideas?
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DJ 84 300D Turbodiesel 190K with 4 speed manual sold in 03/2012 
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#2
10-08-2004, 06:41 PM
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Wheel bearings
Make sure it is not the center differential. Have someone drive the car while your in the passenger seat. If it seems like its now coming from the right tire, it could be the differential. If its not just as loud then it is the left wheel. I would think bearings by your description. Now you do have bearings in the axels so make sure it is the wheel bearings before you take things apart and buy stuff Dave
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1970 220D, owned 1980-1990 1980 240D, owned 1990-1992 1982 300TD, owned 1992-1993 1986 300SDL, owned 1993-2004 1999 E300, owned 1999-2003 1982 300TD, 213,880mi, owned since Nov 18, 1991- Aug 4, 2010 SOLD 1988 560SL, 100,000mi, owned since 1995 1965 Mustang Fastback Mileage Unknown(My sons) 1983 240D, 176,000mi (My daughers) owned since 2004 2007 Honda Accord EX-L I4 auto, the new daily driver 1985 300D 264,000mi Son's new daily driver.(sold) 2008 Hyundai Tiberon. Daughters new car
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#3
10-08-2004, 07:25 PM
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Ditto
Quote:
__________________
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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#4
10-08-2004, 07:28 PM
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Quote:
A problem in the differential will not be affected by braking, however, it can be affected by changes in torque as governed by the gas pedal . p.s: Man, did that feel good, PEH. 
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