Our first drive of the E320 CDI was in the hill country north of San Antonio. Mercedes has worked hard to eliminate one of the knocks against diesel: noise.

Improving on this, the new six-cylinder Mercedes E320 CDI uses fully electronic fuel injection not only to further lower diesel emissions, but to moderate the engines’ noise. Moreover, the car’s CDI – ...

E320 CDIAfter a five-year absence, diesel power returned to a Mercedes-Benz model sold in the U.S. for 2005. Americans have shunned diesels, citing such drawbacks as noise and odors.

The E320 CDI has a nice, muted, wrapped-in-cotton-wool feel to it though. And rather than the traditional chugging of most units, it purrs into life and loses much of its diesel sound as the revs ...

Mercedes re-enters the U.S. diesel market with an E320 CDI sedan that's fast, quiet and cleaner than older diesels.

If you objected to diesels for their noise, stench and lack of power, the ’05 E320 CDI gives you reason to reconsider.

Mercedes claims the extra sound deadening materials that went into the E320 CDI are to be credited for that.

MB E320 CDI Lots of gizmos; all practical to learn about. Dealers are the main complaint. Cupping wear on tires making howling noise. Confirmed by tire shop. Alignment checked out OK.

As for noise and harshness, the engineers haven't been able to disguise its roots when starting from cold, but once warmed up the 3.2-litre unit doesn't disturb cabin tranquillity.

Faster than the gasoline E320, the E320 CDI makes 201 horsepower and a E500 trouncing 369 lb-ft while achieving 32.2 mpg in the European cycle.

Mercedes claims the extra sound deadening materials that went into the E320 CDI are to be credited for that.