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  #1  
Old 06-23-2004, 12:56 PM
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Popping noise from the rear right

I know these kind of problems are generally difficult to diagnose online, but I'm hoping someone with this same problem has found out what it was.

My 240D has a popping noise coming from the rear right whose frequency is related to the speed of the car and it's there only under light throttle and higher weight load, such as when making a left turn or carrying a heavy passenger. I think it's either the RR wheel bearing or axle shaft, but which one? Basically I don't want to replace one of these and then find out it was the other item. Or could it be something else? The car has no vibration and I've done a visual inspection of the undercarriage, including the flex disc.
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Old 06-23-2004, 01:34 PM
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Bearings hum or squeal. CV joints pop.
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  #3  
Old 06-23-2004, 01:51 PM
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sway bar links?
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Old 06-23-2004, 01:53 PM
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My bet is on the axle CV's
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Old 06-23-2004, 02:12 PM
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CV joints

My guess is CV joints too.
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Old 06-23-2004, 02:43 PM
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I recently had a noise similar to what you describe and it was CV joints. I ended up replacing the half axles on both sides as all of the rubber boots were rotten.
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Old 06-23-2004, 03:52 PM
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Yeah I was kind of leaning towards the axle shaft too. The boots look fairly new so I'm thinking this car has a bad rebuilt axle. How difficult is it to replace it?
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Last edited by DieselAddict; 06-23-2004 at 04:02 PM.
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  #8  
Old 06-24-2004, 11:24 AM
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Quote:
Originally posted by DieselAddict
Yeah I was kind of leaning towards the axle shaft too. The boots look fairly new so I'm thinking this car has a bad rebuilt axle. How difficult is it to replace it?
Replacement is cake, very straight forward. Make sure you have the receipts/info for the warrantee on the rebuild, most are lifetime.
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1984 300D Turbo - 4-speed manual conversion, mid-level resto

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1979 300TD Auto - Parts car.

1985 300D Auto - Wrecked/Parts.


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