Scotty3219

I was thinking Maybe i Can get some Reviews From a Tuned Cla 45 Owner.. I want to Tune Mines But not Quite sure Which Tune i wanna Go with.. Thanks in Advance

Burncycle4

Same here. I want to tune mine too but not sure which vendor to go with.

soolman32

Heard nothing but positive feedback from people who currently own the Renntech tune and lots of good feedback on the Rebellion tune as well. Seems you can't go wrong with either tune.

eason

Both Renntech and Rebellion tune will put a smile on your face and you won't regret.

nlpamg

I am so ready to pull the trigger on the tune...

I'm just worried about reliability and longevity. Especially with the CA **** water gas.

I also intend on taking this car to the track (road course) like my other cars, but I'm worried that the tune may give me some problems (I had issues with my tune on the GT-R at the track). I assume with both the Rebellion and Renntech tunes, I can dial it down?

ML63 AMG

I would not tune if you plan on tracking it... At least not yet.... certainly not with a piggyback.

Once more tuners come in and more testing and refinement is done on tunes I would say they are not "track ready". Give it another year

bmoney12

Just curious....what's your reasoning behind this?

bmoney12

I'd hit up Matt at rebellion with any concerns. I've done 3K miles with my tune and the CLA45 has been flawless. I haven't been on the track yet but I do drive it pretty hard. I had it tuned at 700 miles so I didn't exactly follow the break in period either.

PorGT3

Our CL/A45 mates in Sydney Australia are running: Rebellion v2; Renntech; Willall; EvoTech and McChip-DKR. We are planning a dyno day soon to measure before and after % increase (not car v car) and we're expecting similar numbers. we've also strapped on our GPS vbox and have been to the drag strip and can say that we're all running similar 0-100kph (0-62mile) and 1/4 mile times.
I've personally run 2 tracks days so far and had no problems, as have the Willall units (which have been extensively track tested).
whats certain is the power increase (no matter the brand). once you drive with a stage 1 ECU, you wont go back to stock. As to which one you want, well that's up to you - price vs supplier reputation vs local support vs claimed power, etc. I concur that the gearbox is now an issue and the extra power highlights this a lot (big delays in gear shifts and short shifting 1st and 2nd) - but it wont spoil the BIG GRIN you get when you plant your foot!

bmoney12

What kind of times are you guys running?

PorGT3

on the vbox anywhere from 4.1 (with RS) to 4.6 (soft start) for 0-100kph
at the drag strip, 12.2 to 13's (yes, slow day that was) for the 1/4 mile
of more interest are the track times. An A45 with Stage 1 "Tekno" tune ran a 1.037 at a Sydney Racetrack recently in the MOTOR magazine test (will be published in July). the track record is in a Radical SR8, on slicks driven by a local racing driver at 0.53sec (porsche GT3's are doing 0.58/9's). 10 secs off the track record is not bad!

msk74717

What type of rubber ( stock, "R' or slicks )were the track 45Amg,s running?

TighTT

Yet more "shot in the dark" advice. Do you even own a CLA?? If so, is it tuned?? It seems that you give lots of advice on this forum...with little to no facts to back up your claims.

PorGT3

Personally, I ran the OEM Dunlop ("Dunslop") Sport Maxx (summer here in Aust). road tire. They are terrible. with 46-48PSI hot, the sidewall writing was rubbed off and it was like driving on soap - slippery with no feel - just a lot a squealing.. Another A45 car ran R-Spec Yokohama A050R which were worth 2 secs. per lap and didnt degrade from heat cycles (which on track days you get when you go 20mins on, 40 mins off).
As for the tunes - 3 cars on track. 1 Rebellion. 1 CPC (McChip) and 1 stock. Obviously the tuned cars better lap times but the big difference was coming out of the tight, 2nd gear corners - more power, stronger mid revs. So - Piggyback ECU tunes at the track? Absolutely (just be sure the temps on the "AMG" menu are ok (not blue)).

HIRO63

How about Eurocharged? Who has their tune?

msk74717

Thanks PorGT3, has anyone tried the new DunlopSport Race?