1998 E300TD engine wobble. ( oscillation at idle) - Mercedes-Benz Forum
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post #1 of 3 (permalink) Old 04-07-2019, 07:24 AM Thread Starter
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Date registered: Aug 2016
Vehicle: 1995 E300D
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(Thread Starter)
1998 E300TD engine wobble. ( oscillation at idle)

Hi All,
i have the strangest engine wobble at idle on my
Its interment, rocking oscillation at normal operating temps. Doesn't do it when cold.
I replaced the engine mounts and trany mount hoping it would fix it. All it did was smooth is out but it still there.

Some days its smooth so its not a harmonic balancer.

Could it be a bad injector? or IP regulating itself out of sync?

Its a weird one.
The car drives fine in all other RPM ranges.
But eventually it will take out the new engine mounts if not fixed.

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post #2 of 3 (permalink) Old 04-09-2019, 08:05 AM
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On newer engines better scanner can run simulated compression test, but not sure that is possible with your engine.
Still the old-fashion high pressure fuel line cracking can pinpoint acting injector.

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post #3 of 3 (permalink) Old 05-20-2019, 03:27 PM
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I had similar problem in w123, but was able to recalibrate the injectors with washers to yield proper pressure across all five.
Once done, I did a diesel purge; and now she purrs like she should. No more oscilation.
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