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  #1  
Old 12-17-2004, 05:49 PM
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V6 mb diesel

Hope it hasn't already been posted in the forum.

http://www.germancarfans.com/news.cfm/newsid/2041216.002/mercedes/1.html

Looks like the end of all inline 6 motors from MB. Also the end of 5 cylinder diesel production.

If you dont want to click the link, here is the intro:

Agility and driving pleasure as standard
Mercedes-Benz is presenting a new V6 diesel engine which will replace the previous in-line five and six-cylinder engines from spring 2005. With an output of 165 kW/224 hp and a maximum torque of 510 Newton metres, the Mercedes six-cylinder is one of the most powerful units in its class. Thanks to the latest technology, the exhaust emissions meet the stringent EU4 limits; in addition Mercedes-Benz equips the V6 engine with a particulate filter as standard in Germany.


The concept of diesel driving pleasure achieves a new quality with the new CDI engine. As the successor to the five and six-cylinder in-line engines it offers an increase in output and torque of up to 38 percent, ensuring faster acceleration, brisk intermediate sprints and a higher top speed. The maximum torque of 510 Newton metres is already available from 1600 rpm, and remains constant up to 2800 rpm. Accordingly the new V6 has torque characteristics which are unsurpassed in this displacement class. In combination with the unique 7GTRONIC seven-speed automatic transmission, this ensures the best possible exploitation of the remarkable output and torque potential in any driving situation.


Despite a significantly higher output, the fuel consumption remains at the exemplary level of the previous five and six-cylinder diesel engines.


The choice of materials, design, fuel injection and engine management system reflect the state of the art. As a world first for a diesel engine in this displacement and output class, Mercedes-Benz has developed an aluminium crankcase with cast-in grey iron cylinder liners for this unit which makes a major contribution to weight reduction. As a result, the new V6 weighs a total of only approx. 208 kilograms (acc. to DIN) and is therefore only very slightly heavier than the previous five-cylinder engine. The power-to-weight ratio has increased by more than 20 percent to 0.79 kW/kg a major contribution to the outstanding diesel agility offered by the new engine.


The engine block, components and ancillary units form a very compact entity, which means that in future the new V6 will also be installed in Mercedes model series and 4MATIC variants where no six-cylinder diesel engine was previously offered.

Info from DCX
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  #2  
Old 12-17-2004, 08:33 PM
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Thanks for posting the web site. It was a wonderful article
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  #3  
Old 12-17-2004, 08:41 PM
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Quote:
Originally Posted by fahrgewehr2
Mercedes-Benz has developed an aluminium crankcase with cast-in grey iron cylinder liners for this unit...
Bye-bye rebuildability.
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  #4  
Old 12-17-2004, 09:41 PM
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Cool it is kind of sad to see the I6's die but the world marches on. I saw a new CDI idleing at the dealer today. Very quiet almost like a gas car and no hint of smoke, the new diesels are pretty cool.
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  #5  
Old 12-18-2004, 05:48 AM
Joe vegas
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V-6 engine

V configuration on a diesel engine is a questionable approach. Witness the GM debacle 20 years ago. Too much torque for the block to hold up. Hopefully MB engineers have worked this out. To my knowledge big block mfrs (Cummins, Cat, Detroit, Mack have discarded the V and gone in-line. In the pickups only Ford has the V-8. Dodge/ Cummins and GM/Isuzu (duramax) are in-line. Oh well, ANY approach is superior to these hybrids coming out.
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  #6  
Old 12-18-2004, 06:09 AM
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How's the track record been for the V8 S400 CDI Diesel in Europe? They've been out for a few years now.
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  #7  
Old 12-18-2004, 11:36 AM
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Quote:
Originally Posted by TonyD
How's the track record been for the V8 S400 CDI Diesel in Europe? They've been out for a few years now.

I don't know about the diesel, but the S-Class was ranked 1st in the top 10 worst realiable cars from JD Power. The list was dominated almost exclusivly by BMW and Mercedes.
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  #8  
Old 12-18-2004, 12:12 PM
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Just imagine all the things to go wrong with that new V6 Diesel engine. And none of them you can fix yourself. $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$

P E H
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  #9  
Old 12-18-2004, 03:42 PM
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This could be a great engine as long as it doesn't have the almost perminant low pressure fuel leaks and cat blocking abilities (when they aren't driven hard)of the current CDI engines. I wonder if the turbo lag has been reduced much.

I really don't understand why they have to use the crappy clic conectors and plastic fuel lines when they've never sealed properly. I would have thought that they would retrofit rubber hoses and hose clamps by now.

Looks like a great engine though.

I want to see a V8 version of this engine...........imagine the torque!

I couldn't see the turbo/s in any of the pics and I haven't managed to get any additional info from benz. Reakon it's a single turbo or bi turbo?
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  #10  
Old 12-18-2004, 11:21 PM
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If you read the whole article about the new engine it appears that they are doing a tremendous amount of quality control, on this engine, to make it reliable.
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  #11  
Old 12-18-2004, 11:53 PM
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We'll see...

I really don't think any of the newer diesels, or gas cars, are going to experience any problems in the short term. In the short term, they could prove durable and everlasting. And most likely the engines will last as long as our 240D's. ONLY IF THE OWNER'S SERVICE THEM FREQUENTLY.

However, whoa to you who may buy these cars upon their eve of becoming classic status.

In other words, too many bits and pieces. Heck, if I had the money, and I had no interest in the way a machine works, I'd plunk down the $$$$$ for one in a heartbeat. I have to admit, there is no better looking car out there than the 211. Although, I will have to get used to it's "butt" over time.
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  #12  
Old 12-19-2004, 02:58 AM
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"...GM/Isuzu (duramax) are in-line."

Actually, the Duramax Used in Chevies is a V8 as well
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  #13  
Old 12-19-2004, 06:01 AM
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The specs of the MB engine dont look that impressive when you bring in Honda's latest in line 4 for the Accord, lighter as well as developing high output and superb torque curve with fantastic economy.

Why would MB take away the super reliable in line diesel is beyond my comprehension, all they needed to do was to tweak their plumbing to make them more emission friendly and economical.

The HINO commercial diesel engines from the 4009cc four to 12000cc eight cylinder are all in line affairs, no V in their configuration. All MB truck engines are in line till today.
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  #14  
Old 12-19-2004, 10:32 AM
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The trend toward the V configuration may be a an adaptation for newer car styling. Shorter V engines fit better in the smaller modern engine compartment.

I'll take a straight six every time for simplicity and inherent balance.
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  #15  
Old 12-19-2004, 10:50 AM
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It is easy for everyone to bark and complain about stuff they don't even know about. No one here knows the financial, reliability, engineering development factors involved in any of the changes M-B is implimenting on its new diesel engines. I'm sure that they not only know what they are doing, but also know that competition is fierce now and lackluster product doesn't cut it these days.
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Old 12-19-2004, 10:50 AM
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