C-Class (W203) 2001-2007, C160, C180, C200, C220, C230, C240, C270, C280, C300, C320, C230K, C350, Coupe

2003 Sports Coupe Engine

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Old Aug 23, 2002 | 07:51 PM
  #26  
lars's Avatar
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From: Canada
05 CLK 500 cab
Originally posted by hokusbenz
i would certainly be missing the extra punch and the wide torque band that the 2.3 offered
OTH, the 2003 weighs 25 kg (about 55 lbs) less than the 2002, which should make the 4 HP and 8 ft-lb losses unnoticeable at their peaks. That weight is coming off over the front wheels, which carried 56% of the car's weight in 2002. Since the tires and suspension haven't changed, handling should be improved.
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Old Aug 23, 2002 | 08:51 PM
  #27  
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From: Toledo, Ohio
Originally posted by grn300m


I have shown the car to 50 people or so and only one asked to check the engine. He is an MB man, but he feel MB has never made an overly attractive engine. I think the only good looking engines are chromed muscle car engines from the late 60's.
My friends at the engine plant always want to look under the hood. They all drive Chrysler Group products or GMs and are impressed with the engine. They love the red head cover.
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Old Aug 23, 2002 | 10:11 PM
  #28  
mdp c230k's Avatar
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From: Los Angeles
2002 c230k
Originally posted by vadim

Engine and Drivetrain

Engine 1,796-cc intercooled supercharged DOHC 16-valve inline-4 with dual
balance shafts. High-pressure die-cast alloy cylinder block, alloy heads.

Net power 189 hp @ 5,800 rpm

Net torque 192 lb-ft @ 3,500 - 4,000 rpm

Compression ratio 8.7:1

Fuel requirement Premium unleaded gasoline, 91 pump octane.

...
[/B]
The balance shafts are why the engine is so smooth most likely. They counter the crankshafts forces by spinning weights opposite in force. I think Mitsubishi or another Japanese company has the rights to the idea so MB had to license it. The torque band is less than the 2.3 by a longshot so it will be harder to get all the weight moving around town without revving higher. I'm glad I've got the 2.3l!
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Old Aug 23, 2002 | 11:14 PM
  #29  
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From: Encino
2002 C230K
The balance shafts are why the engine is so smooth most likely.
this is true. the 2.3L has a single lanchester balance shaft whcih makes it smoother than a lot of 4 bangers out there. the dual lanchesters make it all that much quieter.
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Old Aug 24, 2002 | 07:13 PM
  #30  
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Originally posted by dswildfire


this is true. the 2.3L has a single lanchester balance shaft whcih makes it smoother than a lot of 4 bangers out there. the dual lanchesters make it all that much quieter.
I can't find any info which says the 2.3 has a balance shaft. Please post your source.
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Old Aug 24, 2002 | 08:15 PM
  #31  
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From: Glendale, CA
C230 Kompressor Sports Sedan
Question

wat are the major difference between 02 and 03 models?

in terms on specs or just interior wise?

i wanna know~~!
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Old Aug 24, 2002 | 09:00 PM
  #32  
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From: Encino
2002 C230K
I can't find any info which says the 2.3 has a balance shaft. Please post your source.
I can't seem to find it right now, but i'll get it to you as soon as i locate it. I do remember reading it though because i was excited about it after reading it.
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Old Aug 24, 2002 | 11:54 PM
  #33  
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From: Portland Or
2000 300m, 2003 C-Coupe
wat are the major difference between 02 and 03 models?
I am aware of only 2 areas of change for the 2003 over the 2002. The engine is the main difference. 2003 is a 1.8 whereas the 2002 was the 2.3. Both engines are great engines, the 1.8 is new with an unproven history. The HP for 2003 is 3 less and the torque is less as well. The 2003 is lighter (due to the new alum engine) getting closer to a 50/50 weight dist than the 2002. Performance is about the same, the 2002 is .1 sec faster 0-62. Depending on the driver, that is a moot point.

Another difference is the A/C controls on the dash. The graphics changed a little, no functional changes. Some optional packages are a little different and 2003 has bi-z's available.
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Old Aug 26, 2002 | 12:19 PM
  #34  
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From: Canada
05 CLK 500 cab
Originally posted by grn300m
Another difference is the A/C controls on the dash. The graphics changed a little, no functional changes.
The REST feature has been deleted on Canadian cars, at least.
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Old Aug 26, 2002 | 02:23 PM
  #35  
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Originally posted by lars

The REST feature has been deleted on Canadian cars, at least.
The MBUSA web site shows the REST feature for the C320, but not for the C240 or the C230k. I think this may be an error on the web site and REST is on the C240 and C230k. The web site also says the C230k has TUNNEL MODE, and I'm pretty sure that is an error.
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Old Aug 26, 2002 | 03:06 PM
  #36  
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tb2
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From: Ohio
2002 C230 Kompressor
Originally posted by Lynn
The web site also says the C230k has TUNNEL MODE, and I'm pretty sure that is an error.
The 2002 C230k does indeed have "Tunnel Mode" and I do not believe this has been changed for the 2003's.
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Old Aug 26, 2002 | 09:42 PM
  #37  
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From: The blue white rock, third out.
2002 C230 Coupe(M111)
Originally posted by tb2

The 2002 C230k does indeed have "Tunnel Mode" and I do not believe this has been changed for the 2003's.
Excuse my ignorance, but what is tunnel mode?
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Old Aug 26, 2002 | 11:27 PM
  #38  
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Originally posted by tb2

The 2002 C230k does indeed have "Tunnel Mode" and I do not believe this has been changed for the 2003's.
The 2002's have a half assed tunnel mode. It works the windows, but not the roof because the roof does not have one touch close. To me, calling that Tunnel Mode is a misrepresentaion of the facts, but yes, Mercedes does call it that.
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Old Aug 27, 2002 | 12:43 AM
  #39  
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From: Portland Or
2000 300m, 2003 C-Coupe
The 2002's have a half assed tunnel mode. It works the windows, but not the roof because the roof does not have one touch close. To me, calling that Tunnel Mode is a misrepresentaion of the facts, but yes, Mercedes does call it that.
Lynn, my 2003 has full on tunnel mode. Driving home tonight with the windows down and the roof opened all the way, it got a little chilli. I pushed and held the recirc button and both windows closed and the roof closed completely, no stops! This might also work when the car is running but sitting still, like in a parking lot.
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Old Aug 27, 2002 | 01:29 AM
  #40  
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Originally posted by grn300m


Lynn, my 2003 has full on tunnel mode. Driving home tonight with the windows down and the roof opened all the way, it got a little chilli. I pushed and held the recirc button and both windows closed and the roof closed completely, no stops! This might also work when the car is running but sitting still, like in a parking lot.
That is a nice inprovement for 2003. On my 2002, only the windows roll up when the recirc button is pushed. Does the roof have one touch close for 2003?
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Old Aug 27, 2002 | 01:39 AM
  #41  
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2000 300m, 2003 C-Coupe
That is a nice inprovement for 2003. On my 2002, only the windows roll up when the recirc button is pushed. Does the roof have one touch close for 2003?
The roof buttons do not have auto close for 2003. You have to push and hold the button. However, holding the recirc button will also close it. If I would have let go of the button before it closed all the way, it might have stopped. I will check it out tomorrow morning.
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