S-Class (W126) 1979-1991: 300 SE, 300 SEL, 380 SE, 380 SEL, 420 SEL, 500 SEL, 560 SEL, 360 SEC, 500 SEC, 580 SEC, 300 SD TURBODIESEL, 300 SDL TURBO, 350 SD TURBO, 350 SDL TURBO

1991 350SD Odd noise at front of engine.

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Old Jan 19, 2016 | 08:37 PM
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78 280se 82 300sd 89 190e 2.6 91 350sd
1991 350SD Odd noise at front of engine.

231,000 miles
Beautiful body
Starts and runs well

Before everybody begins to tell me tje story of the terrible 603 motor I am very familiar with their reputation. My first question would be how can I determine if this car has a newer style replacement engine or block in it based on the vin and second I am experiencing an odd noise from the front of the motor, it almost sounds like an accessory noise. Here is a link to a video of the engine running.


Thoughts??
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Old Jan 20, 2016 | 10:47 AM
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From: MBworld
bone stock E55 AMG
moved to W126 forum...
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Old Jan 21, 2016 | 11:52 AM
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1991 350SDL, 2006 E320CDI, 1999 F250 7.3L Crew Cab 4X4
Check the belt tension shock by pressing a hammer handle against the portion of the shock where the bolt attaches it to the cylinder head. Put downward pressure on the top bushing of the shock and see if the noise changes. If the noise is less, replace the shock.
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