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Discussion Starter #1
Hi,

I am currently looking in to the possibility to trade my SL500 for a SL55.
When viewing ads and magazine articles about the SL55 two different figures are used when it comes to engine horsepower.
476 and 500. How come that there are two different values, and what is the correct one?
I am now referring to the early years 2003-2004.
Anyone who could shed some light over this matter.


//Bjorn
 

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Hi,

I am currently looking in to the possibility to trade my SL500 for a SL55.
When viewing ads and magazine articles about the SL55 two different figures are used when it comes to engine horsepower.
476 and 500. How come that there are two different values, and what is the correct one?
I am now referring to the early years 2003-2004.
Anyone who could shed some light over this matter.


//Bjorn
In looking at previous reviews the 2003 model seems to have started with 476 HP while the 2004 model is fairly consistent showing 493HP. The 2007 SL55 had an increase to 510 HP due to a slightly larger throttle body and tweaks to the supercharger.
 

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I think the figures 476 and 500 were refering to PS, not HP which were 469 and 493 HPs. The SL55 came with 493 HPs from 2003-2006 then 510HPs from 2007-2008 (at least in the States). 469 HPs were the rating for W210 and W219 55's
 

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Discussion Starter #4
The fact that my figures might be PS instead of HP is must certainly correct.
Interesting that the other models with the 5,5l engine had less output then the SL55.
In a sales brochure for the first year model the engine output is given to 350kw @ 6100 rpm. That equals 476 HP or PS. Torque is given to 700 Nm @ 2650-4500 rpm.
In a simillar brochure for the 2004 model the output is given to 368 kw @ 6100 rpm which equals 500 HP or PS. The torque is given to be 700 Nm @ 2750-4000 rpm.
Could it be that the engine character was changed between the first and second year, or was it just that the figures were discovered to be incorrect from the begining and later changed.


//Bjorn
 

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I don't think the HPs (or PSs) got change in the first 4 years. The reason that E and CLS has less HPs (at least on the paper) than CL/SL/S was because the latters are supposed to be "flagship models". Auto makers usually do not want to make their cheaper models to be as good as the more expensive models. There is a term for this but I don't remember at the moment. There might be differences in UK tho ....

Correction for my previous post ... it was W211, not W210
 

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My 2003 SL55 manual has the 469 rating. I believe from some sources I read a few years ago (sorry, don't have them available now) that the 2004 year had no engine changes but was rated 493. The explanation I read was the first model year was conservative and real world experience proved 493 was accurate. I'm open to correction if anyone has hard data, however.
 

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My 2003 SL55 manual has the 469 rating. I believe from some sources I read a few years ago (sorry, don't have them available now) that the 2004 year had no engine changes but was rated 493. The explanation I read was the first model year was conservative and real world experience proved 493 was accurate. I'm open to correction if anyone has hard data, however.
Here is the page from the US 2003 SL55 manual.
 

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Euro Spec SL55 V US Spec SL55

Hi, I am looking for an SL55, Left hand drive and have come across one for sale in Europe, but it is listed as A US specification.

I have tried to find out what the differences are between Euro Spec and US Spec, but so far no luck.

I hope someone here can help.
 
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