I'm considering buying in the future. Any thoughts between a used 05 or 06 E320 cdi or the new v6 bluetec?

Ok, just from what I've heard someone tell me, get the one with the inline 6, supposedly the V6 has some bugs in it.

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'81 MB 300SD, '82 MB 300D Turbo (sold/RIP), '04 Lincoln Town Car Ultimate

Sooner or later every car falls apart, ours does it later!
-German Narrator in a MB Promotion Film about the then brand new W123.

I think those bugs are called UREA, they eat the exhaust and make the system cleaner.

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Terry Allison
N. Calif. & Boca Chica, Panama

09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)

My wife has an 05 CDI. AWESOME car!!! The inline 6 has been sold in Europe for years and should have all the "bugs" out of it. I can't imagine any advantage that the V-6 would have. We routinely get 32 mpg and on long trips get 35. The acceleration is incredible. What I don't understand is why anyone would buy a 320 gasser.

Also, you can get a much better price on an 05.

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Wayne

the triumph of evil requires only that good men stand by and do nothing

13 Audi A3 TDI, the Wife's!
85 190D 5 speed, 195,000 miles
75 Triumph TR 6 w/Toyota 5 speed
2000 Ford F-250 powerstroke
03 Ml500, 109000

This isn't true, the bluetec E320 does not use the urea injection system (not yet anyway). I've confirmed this with my dealer as I was looking at an '07 and wanted to know what extra maintenance was involved with the bluetec engine...none over the I6 is the short answer.

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Marty D.

2013 C300 4Matic
1984 BMW 733i
2013 Lincoln MKz

My mistake then. I was under the impression thats what the "Blutec" was all about. Cleanliness.

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Terry Allison
N. Calif. & Boca Chica, Panama

09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)

It does have a more advanced emissions system than the CDI. Just not the urea injection system that uses a consumable that needs to be replenished - that system is not presently used in the USA.

The bluetec system as it currently stands meets all of the emissions requirements the EPA has established without the need for that additional system. According to the dealer I visited that may be coming in future years but for now the bluetec does not have that system.

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Marty D.

2013 C300 4Matic
1984 BMW 733i
2013 Lincoln MKz

As well as choking the engine's exhaust, additional fuel consumption and a substantial addition to the "diesel premium".

Huh... That's a real head-scratcher. I guess all of us are seriously misinformed -- it's all just vaporware (no pun intended) for now?

Seems you are right, though. I'm cut/pasting below from the mbusa.com website FAQ section... (Emphasis is mine.)

*****

To meet even more stringent emissions requirements, the BLUETEC system *could* be equipped with another module — AdBlue injection, replacing the DeNOx storage catalytic converter. A water-based urea solution, AdBlue is carried in its own tank and metered into the exhaust in minute quantities — quantities so small that the tank only needs to be refilled during routinely scheduled maintenance. When AdBlue is injected into pre-cleaned exhaust gas, ammonia (NH3) is released, converting nitrogen oxides into harmless nitrogen (and water) in the downstream SCR catalytic converter. Called SCR for selective catalytic reduction, this process creates the most effective method of diesel exhaust gas after-treatment currently available. In Europe, AdBlue injection has already proven effective in more than 15,000 Mercedes-Benz commercial vehicles.

*****

Cheers, John

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'98 E300TD (W210) | Sold 6/09 with 205k and counting
'04 VW Touareg V10TDI

What mpg does it get when you drive it hard? I always wondered that.

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1985 CA 300D Turbo , 213K mi

The I-6 is a more robust and smooth design. The V6 uses balance shafts to stop vibrations.

The only advantages I can think of for the V6 is its newer and it has a bit more power. However, simple ECM tuning for the I-6 will get power very close to the V6.

I looked at the MPG figures for the Bluetec, and it seemed that the CDI had better figures. I drove a CDI back in January, and loved it. Too bad it was beige, but still - if I had to buy a newer diesel car, a new 2008 VW Jetta Sportwagen TDI (Common-rail) or a lightly used W211 E-Class CDI would top my list. 369 lb/ft or torque? Sign me up.

I like the fact that the CDI has an inline-6, too.

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2003 Volkswagen Jetta Wolfsburg Edition, "Tiffany," - Black/Black Cloth - 75K miles, Jetta #6; my faithful, turbocharged, BBS-adorned sled

SOLD 3/08 1981 Mercedes Benz 300D, "Elise" - Astral Silver/Black M.B. Tex - 217K miles - I miss her everyday; the best-built car I've owned

Why do they call it blue tec anyway? Whats blue about it?

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1985 CA 300D Turbo , 213K mi

I still have yet to even ride in/experience one.....hopefully someday!

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-diesel is not just a fuel, its a way of life-
'15 GLK250 Bluetec 118k - mine - (OC-123,800)
'17 Metris(VITO!) - 37k - wifes (OC-41k)
'09 Sprinter 3500 Winnebago View - 62k (OC - 67k)
'13 ML350 Bluetec - 95k - dad's (OC-98k)
'01 SL500 - 103k(km) - dad's (OC-110,000km)
'16 E400 4matic Sedan - 148k - Brothers (OC-155k)

the ADBlue urea... is blue... bluetec its cool stuff

I can't wait until Volkswagen uses it with their new diesels... hurray