Apoth

Hi All,

I recently took the plunge and got a V7 tune for my 2012. I've noticed now that in manual mode the throttle is real twitchy in 1st and 2nd at low revs (doesn't happen in comfort, I guess because it starts in 2nd and short shifts), if I hit a bump in the road and my foot moves a little bit it's like someone just gave me an extra 100bhp in one go. Net result is I look like a dumb *** as I kangaroo down the street trying to modulate the acceleration, it's pretty interesting half way round a corner as well... Don't get me wrong on WOT it's great. but that sort of sensitivity is not ideal round town! I've completed a TCU reset and also left the battery disconnected overnight but no change. If I put the original map back on the issue goes away so it's definitely something in the tune.

Is this normal for a v7 tune? I feel like i've turned my daily driver from a well behaved mature car into a an insolent teenager that wants to race everywhere.

juggernaut1

I've just ordered the handheld tune too and the car is used as my daily so hope fully I don't find the same experience...but probably will. I feel as though the pedal almost needs stronger spring tension as even with a standard tune over bumpy roads its sometimes difficult to modulate the pedal in certain modes.

I'm fairly certain the throttle sensitivity is increased with the V7 tune. Perhaps you could reach out to them and see if they can tone the throttle sensitivity down in a revised tune.

RouteAbel

Yes that's been my experience as well.

Benzpit

I have the same issue in manual mode in 1st gear. Very light pressure or WOT. It honestly reminds me of my 1199s Ducati in first gear, impossible to have smooth throttle response but that’s okay with me. I had the tune for a few weeks and probably drove a few hundred miles. Other than that issue, V7 has been fantastic.

BITRBO

I have my EC v7 tune coming in the mail, so can't comment on before/after yet, but I've always noticed that M is a bit twitchy in 1st & 2nd anyway, so maybe it's just worsened a bit with the additional throttle response from the tune?

Good to hear the C is mostly unaffected, cause enjoy the civility of the car when I'm not romping on it.

Apoth

Just an update on this, I noticed that if I run the traction control in sport mode a lot of the issue go away. Maybe something for people to try.

BLKROKT

Or maybe it’s all in your head

AMG6.3

V5 is there best tune period. No issues

juggernaut1

Whats the difference between V5 and V7...unlocking the cam timing in the V7?

juggernaut1

Seek and you shall find:

Feed back from Jerry at Eurocharged is:

“V7 has VVT timing adjustments and a more aggressive timing profile. We also open the throttles up a bit sooner.”

https://forums.mbclub.co.uk/threads/...rmance.228082/

brad65ford

Going to give my 2 sense after having the v7 tune for a week now. After resetting ecu by unplugging the battery for 12 hours, I will attest to the throttle being way to sensitive in S and S+, to the point its almost impossible to modulate accelerating in the rain. C mod is nice, big difference over the other tune I had. I've attempted to talk with Jerry and he suggested battery disconnect which I did and didn't notice any difference. Any suggestions guys?

BLKROKT

Get used to it

brad65ford

Spoken like a true master lol

BITRBO

*debater

///Bruce

I've noticed your twits. Sorry. Meant to say tweets are pretty nasty. Anyone tell you recently your attitude lacks? If not, I'm saying it now. This forum and others I am a member of (6) usually push back on insensitive comments like yours. In some instances they're banned.

Forums such as this are for sharing and helping others not as 'educated' as yourself...

BLKROKT

It was a serious response. That is what having a tuned car is like. Either get used to it or remove it. Go cry about it somewhere else.

thebug44

deadlyvt

The internet isn’t a place to be if you like safe places and your feeing get hurt if you hear something you don’t agree with...

BITRBO

True, but keyboard warriors get annoying after a while, considering even they had questions when starting off...

///Bruce

Serious? Hardly. Crying? Nah. Used to it? Yup. Seen your kind all my life. But I will call you out for what you are which is an arrogant a$$hole.

betrezra

I’ve been away over a year and some things never change.

love the characters here!

Cheers boys.... this ones for you b root!

brad65ford

LOL, some of you guys are funny. Regarding the sensitive v7 throttle tune, Jerry was nice enough to send a less aggressive throttle mapping. Made it feel sluggish obviously and I didn't like it so back with the other tune.

For those that say get used to it, yes, that makes sense since it's what's capable for our cars regarding the mapping of the throttle and whatever else we have limited access in changing. Its very none linear throttle feel, you just don't get a real sense of controlling torque with the throttle, it's a very on or off type of feel. If you don't recognize it then you are just not that type of person that can feel stuff like that, or just don't care lol. Newer car throttle mapping has gotten so much better. I'm just spoiled when going back to this generation car. Does this aggressive throttle mapping make it feel faster and snapper downstairs, hell yes!

///Bruce

I'm curious if you're still going to feel the same way if, god forbid, this happens on a very wet road during a turn. Please be careful.

BLKROKT

He’s right. You should never drive the car again. It’s just far too dangerous with a tune. Think of the children.

juggernaut1

Hey fellas,

So I did a search (because we all like to see members search)......on how to drive your tuned C63 and found this hillarious video on Youtube. Looks like she nearly pranged it - probably too much power for her

Anyway, just as well is wasn't raining for the camera mans sake.