E320 CDI owners- any reasons to avoid a 2005??
Thinking about picking up a used E320 CDI, (i was shocked that the ONLY luxury car sold in the US that gets >25MPG combined is E320 CDI!!!!

) I realize 2005 is the first yr. Are 05s known to have a lot of problems that were resolved in 06-08? is it worth it to spend more $ for a 07 for example. I know 03-04 E-class had a lot of problems that were gradually resolved in 05-07. Also, never owned a diesel before - what are particular things I need to check out when buying?
Thanks,

In '07 they got the V6 motor and the 7sp transmission, so it's a bit of an apples/oranges comparison.
SBC is nothing to worry about as everything's been fixed by now and the warranty is extended to 10 yr (Mercedes punishes Bosch).
As for things to check out--make sure the previous owner hasn't done anything that will void the warranty. Using >B5 biodiesel, for example.
Last edited by lkchris; Mar 20, 2008 at 04:07 PM.
I have had is that I had to replace a EGR valve. This car has been one of the most reliable cars I have ever owned. It makes me wonder where all the bad press for Mercedes came from on reliability. Remember that the 2005 E320 CDI the US received had been out in Europe for a few years before.
The leakage point is where the transmission electrical sensor goes into the "sealed for life" transmission and cannot be seen until you take all the under belly plastic covers off. It is therefore advisable not to do the MB "suction" oil change because you will miss all oil and fluid leaks.
The car is very reliable. A very good work horse which runs very fast too on the highway.
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In '07 they got the V6 motor and the 7sp transmission, so it's a bit of an apples/oranges comparison.
SBC is nothing to worry about as everything's been fixed by now and the warranty is extended to 10 yr (Mercedes punishes Bosch).
As for things to check out--make sure the previous owner hasn't done anything that will void the warranty. Using >B5 biodiesel, for example.
I have been told by a guy at Carlssons USA in Florida that there are minor differences in the North American car computers. He claimed that the Carlsson tuning box for a 2005 cannot be used on a 2006.
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Thinking about picking up a used E320 CDI, (i was shocked that the ONLY luxury car sold in the US that gets >25MPG combined is E320 CDI!!!!

) I realize 2005 is the first yr. Are 05s known to have a lot of problems that were resolved in 06-08? is it worth it to spend more $ for a 07 for example. I know 03-04 E-class had a lot of problems that were gradually resolved in 05-07. Also, never owned a diesel before - what are particular things I need to check out when buying?
Thanks,
There appear to be no additional issues with the 2005 from the research that I have performed.
BTW, I have 2005 E320-CDI with 40K miles and LOVE it. Low end torque is wonderful.
BTW, I have 2005 E320-CDI with 40K miles and LOVE it. Low end torque is wonderful.
There is no oil company conspiracy.
http://www.eia.doe.gov/bookshelf/brochures/diesel/







