So... I have a (so-called) "performance package" C63 AMG I got a week ago. Regarding the PP issues, how do you tell if you really got the "upped" speed limiter and LSD? I know we didn't get the brakes or suspension or alcantara steering wheel...

The reason I ask is, I think a speed governor kicked in at 155 mph. I was doing this speed in a safe, controlled area... I'm not suicidal

 

lol, very possible

are car makes required by the US or something to hve the speed limiter in placE?

 

It for the tire rating / tire safety. The U.S. has no "max speed" a car can go rule.


-Troy

 

The LSD could be confirmed by putting the car up and I think if you spin one rear tire then the other should spin.. or not spin... wait, I'm confused.

For the speed limiter, if you felt a 'fuel cut off' (basically the pedal became 'dead') at 155MPH, then they did not remove the limiter. In that case, if you paid for it, I'd want a refund. At 155MPH you'd expect it to still climb steadily, so if the digital reader doesn't say 156, 157 within the next 2 secs, it's not gonna happen.

Merc really screwed this PP thing up...


Tee_Tz.

 

Sorry, for LSD see this post: https://mbworld.org/forums/c63-amg-w204/255325-2008-c-63-lsd.html


Tee_Tz.

 

Well... have I discovered that MBUSA is selling Performance Package cars which in fact *DO NOT* have the speed limiter upped from 155 mph to 174 mph?

 

hey guys... wondering if anyone with an "Incomplete Performance Package" has verified that it does come with a 174 mph top speed...

 

Here we go again.

 

Why don't you tell us???? Did your car go faster than 155 or not? Seems fairly simple that you would know based on your original comments.

If it has the limiter it will probably go up to 156 or 157 and then it will hold that RPM no matter how much more pressure you put on the gas pedal.

You can always dyno your car and find out if it has the speed limiter.

 

Tried to verify a few times this weekend but unfortunately couldn't get over 140. The closed course just wasn't long enough...Pulled like a banshee up to that speed for a stock car though.

 

It would not go faster than 155, the one time I tried it.

 

Hence it's limited. If you paid for it in your PP, then I'd bring it up to the dealer. I'm sure their mechanics can remove the limiter.

While I don't recommend going past 155MPH, if you paid for something you should get it, no matter how useless (or useful) it is.


Tee_Tz.

 

There is no "partial" performance package. You either got the "030" option or you didn't. The speed limit is raised on all "030" optioned cars from the "normal" limit in an AMG of 155 mph to 300 kmh or approximately 186 mph. That revised limit is taken from the speed ratings of most performance tires which is (take a guess) about 186 mph.

Regular MB = 130 mph max.
AMG = 155 mph max.
"black series" or "030" optioned AMG's = 186 mph max.

You did not get the 030 option, and while it's possible to completely de-limit the ECU, the option was quite expensive and cannot be added now. If you paid for it, they owe you a lot of money or another car.

 

Per the letter that MBUSA sent to the dealers they say the top speed on the PP (030) is only 174 NOT 186. What gives?

 

174 is correct 186 is wrong.

 

My bad. 174 = 030 option. Only the Black Series cars get the 300-320 kph limit.

 

Nope!

The S, CL, CLS, E and SL get 300 or 186 mph in the PP.

It is only the C63 and SLK55 that get the 174 in the PP.

 

Strange, there was a member that claimed "only" 174 out of his 030 equiped CLS63?