massive car vibration started, visual diagnosis was broken / collapsed drivers' side motor mount. picked up replacement mount (autozone, duralast brand - i know it won't last long but it's enough for now) and installed. upon lowering the engine, the drivers' side mount is now more or less squished way down unlike the passenger side. is this an issue? is it normal for there to be a variation? vibration is gone now so it seems to be doing its job.

also i discovered that the bolts that hold the engine to the mounts were totally absent, can anyone tell me what the specs on those are so I can order up a replacement from the bolt supply?

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'81 240D 4 speed
'97 E420