Date registered: Nov 2009
Vehicle: 1985 300TD Turbo Diesel
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'85 300 Turbo Diesel Drive Shaft Noise?
My 300 TD has a sound I can't figure out.
A rhythmic "clanking" coming from under the car, on the drivers side it seems, behind the drivers seat.
Clanking only happens when load is applied. Heard mostly when going slow or uphill, and only on acceleration (when load is applied). Once speed is increased the rhythm gets faster and softer, just not clanking as hard.
From the sound, I would guess that the drive shaft is wobbling and hitting something next to it.
One really strange thing about it is that the sound only happens after I've driven 60 miles or so at one time. No sound, then slowly it starts. Then when I slow down or go up a hill or something it can get quite loud, and scary, like something's going to break soon.
Once I've stopped and the car rests for a few hours the noise is gone.....untill I do another 60 mi. + trip.