| Excessive clatter in E320 CDI?
I have just taken possession of my first Mercedes, a 2005 E320 CDI with 29k miles. I don’t beleive I have to tell any of you what a wonderful car it is. I am a little concerned, however, about the amount of noise it makes. I didn’t notice this in another CDI I drove. At idle and under moderate to heavy load it seems normal, but under light acceleration at low engine speed (when just starting out) it produces clatter reminiscent of a Dodge/Cummins pickup truck. It goes away as soon as the engine load or speed is increased or the engine returns to idle. The engine is at normal operating temperature. Is this normal?
Thanks in advance. | 
