C240 or C230 Kompressor
I'm a first time poster so help a fellow out.
I would like to buy W203 C class (FL) and I'm deciding among C240 or C230 Kompressor.
I have done some research but there are still some things that I would like to have input from the owners of the specific models.
Now I know that the first advantage of the C240 is naturally that's it's V6 so maybe better sound over the 4 pot C230K. But than again C240 packs only 170 hp the C230K has 194 hp. So C230K must be quicker in the corners and from the start. Also the C240 is an old engine (I belive the last before W204 series was the new V6 C280 but that's out of my $$ range).
I would also like to know what is the failure rate / problems with the Kompress alone. Do they fail fast, are there any known issues with certain series, how many miles does Kompressor last before it starts to show it's weakness.
Give me some feedback so I can decide.
Thx
Toni
C230 is faster from the start but the engine is not as smooth or quiet - makes the car feel cheaper (no flames - just my opinion!)
C240 has better pickup after ~30 mph.
Personally I don't feel much difference between them - they both feel slow to me.
The M271 engine (C230) is not nearly as reliable as the M112 (C240).
Search for posts about engine problems on this forum and you will see what I mean.
M112 is (was) used in MANY Mercedes vehicles including the S class and is a dual spark plug engine.
i'm asking because I'm paying cheap insurance with good gas mileage and i'm planing to trade up within a couple of years way before i see and major problems(fingers crossed)
but yea the car is very slow so i have a bike to compensate
Last edited by daiso'; Dec 24, 2009 at 03:20 AM.
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Mercedes-Benz official numbers on the C240 put it a second to a 1.5 seconds slower to 60 than a C230, depending on whether you elect a manual or an automatic. The quarter mile is separated by .7 seconds. Not sure where everyone gets the idea the C240 is somehow going to make a comeback on the C230 in any feasible race. There's no arguing with it being down on power. With peak HP down by 21 and peak TQ down by 15 (and not accessible till 4700rpm vs 3500rpm in the C230).. the C230, which is also ~100lbs lighter, is the better pick. It is more powerful and much more efficient - city/highway for the 240 is 19/24 vs 23/30 for the C230.
I don't know of anyone who races top-speed, so that seems a moot point. The C230 with the sport package has a lot to offer. The C240 has always, to me, begged the question "why?"
The answer to "why?" for me was 4Matic and (from my experience) much less worries about reliability. Neighbors C230 was stuck in front of her house spinning wheels for 30 minutes last night!
I also prefer the lux suspension ever since I threw some lower profile tires on it. Seems to do excellent around turns, but also impresses passengers who can barely feel the bumps in the road. Also I prefer the wood trim over the metal, but I guess some C230s came with wood too? This is all just personal preference though. The C240 you drove could easily have been adapted to a slow driver- I know the response and feeling of power in my engine is HUGELY variable depending on how it's been recently driven. Of course the C230 will still have better pickup! No arguing there.
To be completely honest, if I lived in California (no snow and far smoother roads) and I could just get over the engine reliability issues, I would probably have picked the C230. If you can get the C230 with the V6 M272 like Glyn mentioned, then by all means get that! No snow to worry about in Florida!
Last edited by acr2001; Dec 24, 2009 at 04:22 PM.

Mercedes-Benz official numbers on the C240 put it a second to a 1.5 seconds slower to 60 than a C230, depending on whether you elect a manual or an automatic. The quarter mile is separated by .7 seconds. Not sure where everyone gets the idea the C240 is somehow going to make a comeback on the C230 in any feasible race. There's no arguing with it being down on power. With peak HP down by 21 and peak TQ down by 15 (and not accessible till 4700rpm vs 3500rpm in the C230).. the C230, which is also ~100lbs lighter, is the better pick. It is more powerful and much more efficient - city/highway for the 240 is 19/24 vs 23/30 for the C230.
I don't know of anyone who races top-speed, so that seems a moot point. The C230 with the sport package has a lot to offer. The C240 has always, to me, begged the question "why?"
The V6 2.5 & 2.6 litre engines are extremely popular in a range of Merc vehicles including the E Class - are vastly more durable than the I4. Some people value the true Merc feel that you only get with a 6 or bigger - that's why.
The small V6's are misunderstood in the US. People like Johnand & I understand them. They are great, peppy, free revving engines to drive. You need to live with one for a while to understand this. They don't have the stump pulling torque of large capacity NA engines.
Last edited by Glyn M Ruck; Dec 24, 2009 at 05:49 PM.

M271 engine in all forms:
Model Eng capacity Compression ratio Power Torque
C180 Kompressor 1796 cc 10.0 : 1 143hp @ 5200rpm 162 lbft @ 2500rpm
C200 Kompressor 1796 cc 9.3 : 1 163hp @ 5500rpm 177 lbft @ 3000rpm
C200 CGI 1796 cc 10.3 : 1 170hp @ 5300rpm 184 lbft @ 3000rpm
C230 Kompressor (USA)1796 cc 8.5 : 1 192hp @ 5800rpm 192 lbft @ 3500-4000rpm
Budget constraints were mentioned by the OP, and they said they were looking at 2005 cars. If you need 4Matic, then yes, then the 240 makes sense - like ACR. However, IMO, it makes sense no further. The "reliability" issues is a general term. If the M271 isn't a reliable engine "In general", the same could be said for the W203 altogether - as in, it isn't a reliable choice of a car "in general". I have no issues with my M271. It's not V6 smooth, but it's alright for a four-cylinder car. It's not fast, but it's not 240 slow, either.
The Sport package does a lot for the car. The rims, the AMG treatment, the big brakes, the exhaust.. these made me notice the C-class. I wouldn't own one without it. But, I live in a place that never sees snow and I'll never need AWD. I live in a place that is surrounded by curvy country roads that allows me to use the Sport suspension tuning. I rarely have passengers, and when I do, the Benz is such an improvement over their cars they don't seem to notice the harsher ride given by the Sport. My C230's ride is quite plush in comparison to the bone-jarring ride of my 135i, anyway.
All this applies to people living in US only. Things are quite different in ROW. If the M271 in the USDM was the same as in the C200 elsewhere, I'd recommend the 240.

I don't believe it is any accident that Benz chose not to sell 4 cylinder W204's in America.

I'm slowlly giving up on C230 K and thinking of NA C230. V6 is still a V6. And I was thinking the same thing for the C230 K - it is 1.8 + Kompressor - a lot of stress to the engine so problems will emerge sonner or later.
Keep posting more posts so I can easier decide.
Can someone give me an estimate running cost of the C230 - engine related.
I dont know what your budget is but I see some 230Ks going for the same as the 06 M272 C230 with just a minor difference in millage.
Also the 6 speed with the m272 is a wonderful combo


