AMGTTV8

Just curious if you guys can share your perspective...itching to have my ECU re-programmed but am extremely hesitant about having something go wrong as a result - be it electronically or mechanically related...

Has anyone experienced any drivetrain or electronic issues to date? I guess it's hard to tell if there was a causal relationship, but any insight would be greatly appreciated.

Thanks!

_AMG_

Had my OE tune for a year and some change.
Absolutely no problems at all.

Faris63

+1

Same here

Merc63

Renntech Stage 2. Never a problem.

Going on to LT headers and a new file soon.

Leon Bacon

Issues early on with Kleeman (K2 w/ short tube headers), but once they got it dialed in car has been behaving. I do have CEL come on every few weeks for a few days, but car runs well.

c32AMG-DTM

It seems like the vast majority of C63 owners (at least, those that participate on car forums like MBW) decide to at least throw an ECU tune on the car. As best I can tell, the vast majority have never had any problems, and most any that have, they've been minor, easily resolved, and/or unrelated.

In fact, I only know of one tuned C63 that had a catastrophic engine failure while the tune was in the car - and we never found out if the tune was even the culprit or not. Sure, there may be others, but the incident rates seem to be very, very low... the odds appear to be in your favor, certainly.

AMGTTV8

Cool, thanks guys....really appreciate your input!

BTW, for those of you that responded that have a tune, do you drive your cars pretty hard, or what? Curious to see if there is any greater correlation as it relates to tune and driving habits..

I can feel her asking to be opened up - I think that is exactly the wish that I will grant!

C32 AMG: were the damages that you speak of taken care of by warranty? Or was that not possible due to the tune...

AMGTTV8

BTW, I know I need a tampon! LOL

Helms

^lol like C32 said, the % of failures due to an ECU tune are very low. go for it!

Killswitch747

For the people that responded with "tuned", is your C63 with P31 or not?

Merc63

NON-P31.

These engines are designed to run at 510hp. They are detuned in the C63. Opening them up with a tune isn't going to cause reliability issues.

I drive it hard, otherwise I would have kept it stock.

Merc63

P31 is pointless to tune. They have been proven to keep side by side to a tuned NON P31.. Save your money.

_AMG_

Not a P31.

Walnuts

I have a tune and drive my car hard every opportunity i get and it has never skipped a beat. However i do know of a guy that blew his motor that was tuned and merc didnt want to know about it, ouch $$$$$$

AMGTTV8

my car is non p31...

appreciate everyone's responses!

since someone made a reference to 510hp, should I be trying to focus on the least aggressive tunes? ie Renntech instead of MHP?

Merc63

Your logic fails here. Use a tuner you trust.

Walnuts

I believe an aggressive tune will limit your engine's life hence why AMG detune them to start with. There are plenty tuners out there, make certain you do your research and not choose a tune based on how much horsepower it produces.

drawde

i'm sure it will, to a point but these 63's can take a beating. the detune is about $$$, that's it.

c32AMG-DTM

I think the "aggressiveness" of the tunes from Renntech and Kleemann might be just a smidge less than MHP or OE (who push the envelope for max performance, fastest track times, etc.), but I have nothing concrete to base that on... just a hunch.

As drawde mentions, however, the detune from AMG was simply about keeping the C63 in its place - the M156 is proving to be a pretty stout motor (alleged engineering deficiencies notwithstanding).