Replace the wheel seal also, both sides? Bill in Oregon
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From: diesel_mercedes@yahoogroups.com <diesel_mercedes@yahoogroups.com>
Sent: Monday, May 6, 2019 7:47 AM
To: diesel_mercedes@yahoogroups.com
Subject: Re: [diesel_mercedes] Son's 300SD: First Road Test Experience
Probably have worn or dry front wheel bearing (or bearings).. Simply because they are tight doesn't mean they are good. Time to do your own physical inspection. Take off the hub and rotors to remove the wheel bearings. Clean them up, and if they are discolored or scored, they will make noise. Replace and reassemble using the highest quality synthetic grease, set them up per the factory procedure (the Haynes manual for the W123 diesels will walk you through the steps), and those bearings will be good for another half-million miles or so.
Mark in Centennial, CO
2. This car is haunted by a banshee. Starting around 20 mph and increasing as the car picks up speed, this car has a low-pitched but very noticeable grumble/groan/moan. To me, this sounds a lot like it could be a worn/dry rear transaxle, but the sound really seems to be coming from the right front. We will try to check the transaxle as part of our next Benz work day to see if that might be the source of the problem. There's a bit of wetness at one of the axleshaft seals into the differential, so a low oil level there is plausible. Anyone have other suggestions? They did look at the wheel bearings at the school as part of the pre-sale inspection and claimed they're all looking good. The front wheels are nice and tight, now that the tie rods have been replaced.
Posted by: <corvallis@peoplepc.com>
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