I did mine not too long ago. It was a little tight, but if you jack up the body a bit it should go rather smoothly with little problem refilling from the bottle spout.

Good advice from Mike about removing the top plug first. It's the tougher of the two to remove since it's not alway's wet with oil. Teflon tape or NeverSieze should go on these threads for an easy time on the next maintenance.

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95 E320 Cabriolet, 169K