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

Weight of C230K

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Old Mar 28, 2002 | 02:33 AM
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Lightbulb Weight of C230K

I just weighted my C230K Auto tonight, the car is equipped with C2, C4, C7, CD package. The total weight is 3449.40LB including me (155lb) and 1/4 tank of fuel. I think it is not that bad, because it is just 210lb more than the offical curb weight posted by MB.
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Old Mar 28, 2002 | 11:09 AM
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Weight is including an empty tank of gas. At 8lbs per gallon subtract 32 pounds for 4 gallons (1/4 tank) and subtract 155lbs for you, add 44lbs for the C2 option and you are pretty close to MB spec.
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Old Mar 28, 2002 | 02:20 PM
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Good information, eason. Thanks.

All we need now is for someone without the Panorama roof (but with the C7 wheels and automatic tranny) to weigh their Coupe, and we'll know the differential weight of that Panorama roof.

Any takers?
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Old Mar 28, 2002 | 02:37 PM
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The roof C2 option adds 44lbs according to several articles I've seen.
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Old Mar 28, 2002 | 03:45 PM
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Originally posted by mdp c230k
The roof C2 option adds 44lbs according to several articles I've seen.
MB-BOB and I both beleive that is too little weight for that much safety glass. My guess is that each panel (front and back) weighs about that much. I'm basing this on a Camaro my family owned with T-tops, each of those (about half the size of the front sliding panorama panel) weighed a good 20-25 lbs (although these could have been made a little heavier to survive being accidently dropped).

Cheers, BT
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Old Mar 28, 2002 | 05:08 PM
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Trench,
Take a look at the MotorTrend 2002 Mercedes-Benz C230 Kompressor Sport Coupe article on their site. It lists the panorama roof as a 44lbs option.
"The coolest option-a panoramic sliding sunroof
that really lets the sunshine in-adds just 44 lb."
http://www.motortrend.com/june01/c230/c230_f.html
I don't think this is out of line considering you are also removing that much sheetmetal and padding etc...
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Old Mar 28, 2002 | 05:34 PM
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Sorry, I'm with Trench. I don't buy 44 lbs. Not even close. A typo at minimum. What we need is an actual weight for a car, as noted above.
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Old Mar 28, 2002 | 05:42 PM
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I've seen the article - just don't think it's accurate, or that the weight given is for just a single glass panel. This thread is actually a rehashing of an older one from months back. I primarily recall MB-BOB and myself on the side that thought the roof had to be heavier, MB-BOB had seen an article discussing removing a couple of pounds of weight from the Corvette windshield (which admittedly are probably of sturdier safety glass) by only removing something on the order of a tenth(hundredth?) of an inch of glass. Sheet metal doesn't weigh much compared to glass and there isn't that much padding in the headliner (my coupe is panorama-roofless and the ceiling isn't particularly soft). Besides there are all of the ancillaries such as motors, etc. I would also assume that the roof would have to be reinforced somewhat (which adds weight) since the integrity is compromised by the holes for the roof. That's why I think the 44 lb weight may only refer to a single panel.

This is pretty much why MB-BOB wants to weigh another auto C7 coupe sans roof for comparison to eason's.

Cheers, BT

PS: the other thing we used to always wonder is the weights of the C7 vs the stock wheels.
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Old Mar 28, 2002 | 06:13 PM
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With a little research, I found that a 6'x2'x1/4" sheet of tempered glass weighs only 37lbs. This proves that the whole roof could easily be 44lbs. You can see that the percieved weight is much less than the actual. I think there was no typo involved in light of the figures I found.
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Old Mar 28, 2002 | 07:23 PM
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while you added the moonroof glass weight, but also taken away the sheet metal's weigh.
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Old Mar 28, 2002 | 08:18 PM
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Originally posted by pixmation
while you added the moonroof glass weight, but also taken away the sheet metal's weigh.
Oh, I think I see what you mean... You have to remove portions on the sheet metal roof (which weigh something) before you can begin to replace it with the Pana roof. However, I think the weight of the motor(s), rails, levers, seals and reinforcing bar in the center strut would compensate for the weight of the original roof metal. Then add the glass.

Interesting discussion, but I want imperical evidence. Someone needs to take their non pana/auto/C7 car to the truck weigh station.
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Old Mar 28, 2002 | 08:39 PM
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The weight of a roof panel that is 2'x4' and 18 gauge sheetmetal is 16lbs.(18gauge=.0478", steel=41.82lbs/inch/sqft). Take this into account and the roof could now be 60lbs to make the numbers work, 16+44lbs=60lbs. Does this make you all happy?:p
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Old Mar 28, 2002 | 08:42 PM
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Originally posted by mdp c230k
The weight of a roof panel that is 2'x4' and 18 gauge sheetmetal is 16lbs.(18gauge=.0478", steel=41.82lbs/inch/sqft). Take this into account and the roof could now be 60lbs to make the numbers work, 16+44lbs=60lbs. Does this make you all happy?:p

NO!:p
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Old Mar 28, 2002 | 08:47 PM
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As always, an insightful post from Lynn.

It hurts, but I agree with MB-BOB. Unless we get an apples to apples actual weight comparison, I don't think that anyone here can extrapolate the info from rough dimensions. Too many variables, including how many chalupas said driver has had that day. Gotta throw in a Bell reference; haven't done that in a while.
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Old Mar 28, 2002 | 09:14 PM
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44lbs sounds right to me... yes, i think i'll go with that number...

don't get lynn started on numbers or measurements... last time he tried to explain metric horsepower something something, i thought my head would explode!

Last edited by young; Mar 28, 2002 at 09:20 PM.
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Old Mar 28, 2002 | 09:16 PM
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Don't you know? Chalupas can kill!
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