ELITE_KOV

Any downsides to owning a P31 car vs non-P31? As for reliability is concerned and when it comes to the upgraded internal parts on the P31 cars and such in the engine?

Besides the P31 cars being more expensive in the used car market, just curious why anyone would want to go with non-P31 when the P31 seems a few ticks quicker, and a few mph faster. Sounds like low 12s/high 11s @117-118 for the P31s and low to mid 12s @114-115 for the non-P31s.

Also, was the P31 available in all years the W204 C63 was in production?

Lastly, the '507' edition is a huge difference in price from the P31/nonP31 cars? Is it worth the difference?


Thanks for all the help.

SaphGreyC63

-Upgraded internals makes it MORE reliable, especially with tuning etc....

-I went Non-P31 because to me, the upgraded brakes were unnecessary, i did NOT want the Alcantara steering wheel, and while the upgrade in power is nice, so many good companies offer relatively cheap tunes ($800-1200) that gain you more power than the P31. In other words, I could get what I wanted out of the P31 package without having to payt he $6k+ for it.

-P31 was available 2011+ I believe (maybe 2010

-As for whether the 507 is worth it to you or not is up to you. Its basically a "tuned" car (that tune I was talking about above) with nice little touches like a gorgeous set of rims, special hood, different interior colors/fabrics. Depends how much you want to spend and if its personally worth it for you.

Hope that helps

Kriston

How much more are you paying for a P31 Pack car compared to the standard C63's?

If its no more then 3K difference I would spring for the P31 car.

Limited Slip Diff Installed - 1500
2 Piece Rotors - 1500

These 2 things alone are worth the 3K price difference. Let alone the other bonuses you get with a P31 car like the alcantara wheels / diff color brakes etc.

I am Jeff

In the US markets, P31 does not include the limited slip differential. That's another 2k on top.

avery.whss

I'd rather LSD then 2 piece rotors...I heard those 2 piece rotors cost like 10k+ to replace..screw that..the 1 piece are perfectly fine...LSD should be standard in these cars having it as a option is just a stupid money marketing grab by MB

CarHopper

As mentioned, I avoided a performance pack because I didn't want the two piece rotors. I already have them on my audi and it's painful enough.

Upgraded internals would be nice but I don't see myself going crazy into power with the C (ie I am not going to S/C it) so it wasn't a big deal either.

And a LSD would be something I'd consider, but it isn't too expensive to just add in later.

Guilty

Here we go again

avery.whss

there was a thread about 3-4 months ago with a guy with 2 piece rotors and pretty sure his bill was like $8900 ...im sure if you look in my history i even commented on the outragous price im talking dealership prices..not ebay and i believe it, considering brake pads for my car were like $400 a piece + installation so I can only imagine what a entire brake job costs

ELITE_KOV

The only thing so far the P31 offers that I'd want is the power bump, and even then, 30HP is easy to achieve with these motors.

The LSD is a must, though!

I am seeing price differences of $4-6K ranges between P31 and non-P31; I am looking to get into a C63 sometime later this year so I have just began my search.

Autosport7

A typical (non-professional) driver, who does typical (non-professional) driving on a daily basis and hits the track or pushes the limits on the street from time to time will never utilize the gap between P31 and non-P31 brakes IMHO. As for the 30hp bump, get a tune and get way more than that for way less $. As for the diff, as others have said, I believe it is additional even on top of the P31 package.

My answer, non-P31 with tune and aftermarket diff and your gold. Unless of course you want red calipers...

USCGTO

fixed.

Autosport7

Point taken. All in what your looking for I guess. For me, I was happy with the non-P31 version, and still am . I never find myself wishing I had the P31, then again I bet you never hear anyone say they wish they hadn't got it either.

johnnyblaze

The cliff notes of this thread should be...

Bonuses to P31
-slight tune/raised speed limiter (lol)
-red calipers (lol)
-better brakes

Cons
-replacement brakes $8k through the dealer, $2.5k~ indy (STILL LOL)
-Expensive to add option for LSD (2k) P31 total package (8k)

Having the P31 is a status symbol basically. Might help with resale value. If you plan to keep the vehicle stock and enjoy it in its purest form, probably a better choice than the standard. If you plan to mod you may as well save the cash and put it toward long tubes/tune/exterior mods.

USCGTO

Yes. To each his own.

Having decided that I wasn't gonna mod my car and since I was getting an amazing deal, I was kinda hooked on a P31 specific car.

Truth be told, I wouldnt be able to tell the difference between a 450 and 481 hp car..

USCGTO

Fixed.

And totally agree with it being the choice, if one has decided to stay stock..

johnnyblaze

I approve this edit.

Kriston

LOL 10K brake changes! I didn't know we had carbon ceramics

Either way, if you are not going to mod the car. P31 all the way !

CarHopper

^ It isn't 10k, but if you go by some dealer prices it isn't cheap either. You can easily spend 5k+

realjones88

The p31 uses rotors that are more like '1.5' piece than true two piece rotors that came with the p30. They are $800 - a little cheaper than the p30 rotors. Regular c63 rotors are like $150.

http://www.mbgtc.de/Achsen-Federung-...scheibe-V.html

I don't think the p31 is super necessary, but it is nice to have the 'tune' while still maintaining the drivetrain warranty. I personally like the red calipers, but to each his own.

m a x i m u s

you can also get the rotors cheaper from sites like parts.com.

Merc63

Don't you guys realize you can throw 1 piece rotors on if you don't want to cough up for the 2 piece??

The discs are identical in sizing.

AMG893

Personally, if i had the choice, i would go for the P31, for the sole reason of the upgraded internals. Especially if doing an ECU Tune.

In Australia, we never got this P31 you speak of.

We have the Standard C63 Sedan/ Estate from 2008 to Mid 2011.
In the above, we did get an "Edition 63" for 2009 ONLY. $25,500 Option. Only 63 of them were delivered to Australia. Apparently no other country got these? (Majority Sedans, some Estates) which had the following upgrades:
Available in only 3 colours: Designo Mystic White/ Designo Platinum Black/ Designo Magno Allanite Grey [Matte Grey]
AMG Rear Diff
19" Titanium Grey Multi Spoke Wheels
Interior leather ONLY available in TAN or RED
Illuminated Front Door Sills
AMG Gear Selector Lever
Extended Black Leather Dash with Contrasting Stitching in either TAN or RED.
Double Stitching on the door trims.
Thats IT! No engine upgrades. No CF Bits. No Alcantara!

We also have the option of whats called a "Performance Pack" ($14,000 Option) which was available as on option from Late 2010 (PFL Cars)
Had 22kw Extra (358KW total) and 10 extra Nm Tq
2 Piece Brakes
Red Painted Calipers
Alcantara On sides of steering wheel
Faster Steering Rack
CF Boot Spoiler
Forged pistons from the SLS AMG
New Cconrods
Lighter Crankshaft
Revised Variable Intake Manifold
(Total 3KG Weight Saving in engine)
Darker coloured engine cover
New ECU tweak to take the rev limiter out to 7200rpm (an extra 200rpm).

In October 2011, we got the Facelift C63, Adding the option of a Coupe.
Performance Pack is still an option in the FL Cars

Then the C63 BS Came to Australia in 2012 (Only 30 in total for Australia/ New Zealand)

Then Lastly the 507 Edition from 2013. (Coupe/ Sedan/ Estate)

Wish we got the C63 DR520, but that was only for the UK. Yes 520HP (388KW). Faster than C63 BS (0-100 4.1 Sec). Nice interior and suede dash. Looked brilliant!
But this was only in 2010, thus available on PFL vehicles only. (Sedan/ Estate)

skaarlaj

I would love to have the lsd option on my car, but I have yet to fry only one tire on my C63 with the open diff. I will upgrade, if it ever becomes a problem, but I use the car for straight line performance a lot, and haven't had a problem yet. I do have Nitto drag radials though, and on the stock street tires out back, I would fry the hell out of the tires, but again, it would be both of them on the open diff rear. IMO, get some sticky rear tires out back before purchasing a lsd, you could save yourself a lot of money. I mention this, because prior to buying ours, I was pretty adamant about either having the lsd option, and or the p31 package, but after the test drive, I realized either are that important. I would venture to guess that even a supercharged C63 would still spin both rear tires with an open diff. even with all the additional power available.

On a side note, I bet there's more non-p31 cars running blowers than p31 equipped cars, and I haven't heard of many engine failures to date from internals not handling the added power of a blower, only the head bolt issues. So with that being said, I couldn't agree that the heavier forged internals of the p31 cars are of much benefit to over 90% of modded C63 owners.

cyberorth

P31 has NOTHING to do with either two piece rotors or LSD!
While LSD is nice note that the non LSD car uses brakes to create a pseudo LSD effect as part of traction control. Not for a comparison but that is how the P1 is designed: without an LSD!

The only downside to p31 is that the alcantara gets dirty on the steering wheel.

skaarlaj

I mentioned the LSD, because that, and the 30 extra horsepower of the P31 was very important to me while I searched for a C63 for myself. Now I have my own, and know that I was being goofy, since I don't have traction issues with the open diff. And I also have the power to put away a p31 in a straight line for much less money. Just two things I was adamant about for no reason, now that I know better.