C-Class (W204) 2008 - 2014: C180K, C200K, C230, C280, C300, C350, C200CDI, C220CDI, C320CDI

2012 C250

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Old 12-09-2011, 09:04 PM
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Originally Posted by bhvrdr
Check the link I posted above.

Terry are you going to be tuning for 93 octane?

Thanks.

Cheers! Mike
First, allow me to say that your work is incredible! I'm super stoaked about the possibilities you guys might come up with. What are your thoughts about meth on a tuned c250, and what do you think the yields would be with cat delete?
Old 12-09-2011, 10:45 PM
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Originally Posted by MDMercedesGuy
It is a single turbo. I'm not aware of any MB 4 cylinder worldwide that is a twin turbo.
mercedes-benz-launches-c250-cdi-blueefficiency-prime-edition/

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Old 12-10-2011, 11:39 AM
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Originally Posted by Trek1200
First, allow me to say that your work is incredible! I'm super stoaked about the possibilities you guys might come up with. What are your thoughts about meth on a tuned c250, and what do you think the yields would be with cat delete?
I have a 200cell sports cat on my C180CGI (Same as 200/250)

Has been tested on a C200CGI and on this car it has +13hp
Old 12-10-2011, 05:40 PM
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Twin turbo

Sorry guys. The C250 CDI is a twin turbo, not the gas engine C250 CGI. My mistake!!!
Old 12-17-2011, 06:38 PM
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Originally Posted by Trek1200
First, allow me to say that your work is incredible! I'm super stoaked about the possibilities you guys might come up with. What are your thoughts about meth on a tuned c250, and what do you think the yields would be with cat delete?
Thanks.. There is some potential there but the main issue is the small turbo and weak supporting hardware. That limits the benefit of say methanol injection. A cat delete/downpipe should work wonders, but at the moment we're focused on the easy stuff. Stage1 tuning.
Old 01-04-2012, 02:39 PM
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Originally Posted by Terry335
Thanks.. There is some potential there but the main issue is the small turbo and weak supporting hardware. That limits the benefit of say methanol injection. A cat delete/downpipe should work wonders, but at the moment we're focused on the easy stuff. Stage1 tuning.
hey Terry, so according to you, what is the C250 really putting out at the stock level?
Old 01-04-2012, 03:04 PM
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Check the Brabus website, perhaps the latest chips and performance boosts on a dyno are now available for the C250 CDI. Some of the past improvements were very impressive, 50 HP and more torque.
Old 01-04-2012, 03:40 PM
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Originally Posted by Acapulco Bill
Check the Brabus website, perhaps the latest chips and performance boosts on a dyno are now available for the C250 CDI. Some of the past improvements were very impressive, 50 HP and more torque.
CDI is the diesel .
Old 01-04-2012, 04:08 PM
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Yes, this IS a 250CDI thread, no?
Old 01-04-2012, 09:44 PM
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Nope - it's a C250 GGI/EVO thread. In the US, the C is not available with a diesel - our C250 is the 1.8 turbo 4 cylinder petrol variant.
Old 01-04-2012, 10:43 PM
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I apologize, having read thread #27 with its CDI link.

At the San Diego Auto Show a few days ago, a surprise was the new 2012 BMW 528i sedan with a 2.0L 4 cylinder twin turbo, which replaces the inline 6, now history. 240 HP and 260 lb-ft torque. About 10% more than the C250 I4.

However the new 5 weighs about 200 lbs more than the previous, at 3800 lbs. Even so BMW claims the 0 to 60 will be around 0.4 seconds faster than the six cylinder 2011 528i. Read low 6 seconds here.

Walking around the Auto Show and lusting after the 400 Hp and up models, after filling up the gas tank of my V12, this new "less is more" philosophy is beginning to convince me. As we will soon see $6, $10 and even higher gasoline prices per US gallon, perhaps the next car purchase will be one that averages 28 MPG city+hwy or above.

As for performance improvement, after following the i4 C250 for about a year, to date I havent seen any significant hardware or software upgrades. Much the same as the 3.0L engine it replaces, which also resists tuning and intake efforts.

Those wishing better acceleration should opt for the C350 while they are still produced, as the new 3.5L CGI will probably also be the last of the medium-sized naturally-aspirated MB engines. AMG may figure a way to shoehorn-in the 5.5L twin turbo into the W204 or upcoming W205, so say goodbye to the 6.3 also.
Old 01-06-2012, 01:51 PM
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Originally Posted by Acapulco Bill
I apologize, having read thread #27 with its CDI link.

At the San Diego Auto Show a few days ago, a surprise was the new 2012 BMW 528i sedan with a 2.0L 4 cylinder twin turbo, which replaces the inline 6, now history. 240 HP and 260 lb-ft torque. About 10% more than the C250 I4.

However the new 5 weighs about 200 lbs more than the previous, at 3800 lbs. Even so BMW claims the 0 to 60 will be around 0.4 seconds faster than the six cylinder 2011 528i. Read low 6 seconds here.

Walking around the Auto Show and lusting after the 400 Hp and up models, after filling up the gas tank of my V12, this new "less is more" philosophy is beginning to convince me. As we will soon see $6, $10 and even higher gasoline prices per US gallon, perhaps the next car purchase will be one that averages 28 MPG city+hwy or above.

As for performance improvement, after following the i4 C250 for about a year, to date I havent seen any significant hardware or software upgrades. Much the same as the 3.0L engine it replaces, which also resists tuning and intake efforts.

Those wishing better acceleration should opt for the C350 while they are still produced, as the new 3.5L CGI will probably also be the last of the medium-sized naturally-aspirated MB engines. AMG may figure a way to shoehorn-in the 5.5L twin turbo into the W204 or upcoming W205, so say goodbye to the 6.3 also.
Over in Europe some of the tuners, i.e Brabus and Vath, do have ECU tuning for the 250 CGI. Terry here at BMS tuning (the guys who did the stuff for the E90 335i's) is also working on something. So there are software upgrades already on the market or coming shortly.
Old 01-06-2012, 02:03 PM
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Surely there are many serious companies attempting to boost HP from this new generation of inline 4's. However the question still if there will be a SIGNIFICANT improvement in performance?

One of Brabus' solutions to the 3.5L V6 was to just bore it larger and redo the heads, as this and the 3.0L engines (basically the same) refused improvement. In the end the Brabus C cost nearly the C63. Of course with additional suspension and cosmetic changes.

Hopefully reasonable solutions will be offered and evaluated for the C250 CGI.
Old 01-07-2012, 07:16 PM
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Originally Posted by Acapulco Bill
Surely there are many serious companies attempting to boost HP from this new generation of inline 4's. However the question still if there will be a SIGNIFICANT improvement in performance?

One of Brabus' solutions to the 3.5L V6 was to just bore it larger and redo the heads, as this and the 3.0L engines (basically the same) refused improvement. In the end the Brabus C cost nearly the C63. Of course with additional suspension and cosmetic changes.

Hopefully reasonable solutions will be offered and evaluated for the C250 CGI.
I think Terry's solution is going to be quite reasonably priced. Even the Stage 1 solution is showing some nice gains, but apparently after that, hardware upgrades are needed.
Old 10-25-2012, 04:44 PM
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Originally Posted by GMA36C
Not sure if this is the right place for this or if it's already been asked, but since the C250 will be a turbo'd 4 does this mean it will easily be chippable to squeeze out another 40-50hp like the Audi and BMW turbos?
Finally joined up as an MBWORLD sponsor.

Anyway, as I'm sure you already know we offer the C250 Stage1 tuning, and also a C250 performance intake.


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