[Cornish_Blue]

Anyone took the plunge on a remap on our Mercedes powertrains? 1.6t or 2.0t?
I've done my research, M270 / M274 comes factory spec at 225 370nm in the mercedes C series. Stage one gets 250-260 and 400 to 420Nm. Airbox is plenty big enough and breathable for stage 1.
I've done a few diesels and had good gains. Increased MPG by 10% on average and better smoother manners as they dont run so lean.
Tuned a petrol motorcycle and again got good gains and more MPG, alot smoother again as they run so lean. Forgot to say both go alot better 😆

I see quantum and Celtek do dyno researched maps. Both OBD port loads so not expensive. Celtek are real close to me so I am tempted as I'd get my Q30S on the rolling road with printout.

Any thought from anyone?

 

[JaG]

Did you manage to do something?

 

[Cornish_Blue]

Hi JaG,
I have not done anything yet because my 2.0t vehicle is still under warranty for twelve months. Wikipedia says the M274 is still used in the E300 EQ series Merc and was factory programmed to 257PS 370Nm. I will get a Celtic R/R map done next year- they say 260PS and 420Nm peak so I guess around 395Nm for majority of the curve so well within factory engine specs. As stated elsewhere 724 DCT box is built for 450Nm so all good there too.
Personally Infiniti should have released an IPL version Q30s with the 260 Merc tune, but I think as we all know they fell out with Mercedes hence no more partnership.
MPG should stay about the same as these engines run lean and most tuners just get the AFR closer from 15 to 13 in my experience. 0-60 should be around 6 seconds I hope.

All the best - Cornish 🖐

 

[The Flying Scotsman]

Hi JaG,
I have not done anything yet because my 2.0t vehicle is still under warranty for twelve months. Wikipedia says the M274 is still used in the E300 EQ series Merc and was factory programmed to 257PS 370Nm. I will get a Celtic R/R map done next year- they say 260PS and 420Nm peak so I guess around 395Nm for majority of the curve so well within factory engine specs. As stated elsewhere 724 DCT box is built for 450Nm so all good there too.
Personally Infiniti should have released an IPL version Q30s with the 260 Merc tune, but I think as we all know they fell out with Mercedes hence no more partnership.
MPG should stay about the same as these engines run lean and most tuners just get the AFR closer from 15 to 13 in my experience. 0-60 should be around 6 seconds I hope.

All the best - Cornish 🖐

Has anyone done a remap on the Q30? Interested to see what gains there were and also if any problems.

 

[Martin's]

Hi,
I looked into this last year but had to put it on hold as my insurance company (direct line) were not at all impressed with the idea but its renewal time I have a 1.6t manual and there are a couple of stock maps on offer which take it from 120bhp/200nm to 186bhp/300nm with better drivability, however, I know the engine is well capable of the increase but has anyone any thoughts about the abillity of the gearbox/dif/clutch etc to handle the increased torque

 

[The Flying Scotsman]

I would suspect that if you remap but don't thrash it, all day, every day it should be fine. IE A remap to stage 1 levels. Stage 2 would definitely need more work done in the rest of the car. The petrol engines are detuned quite a bit. I have put an A3 1.8 TSI up by about 35% and ran it for about 18 months with no impact. The Q30 does seem to be built like a brick mechanically.

 

[Martin's]

It may be worth a look then, mind you if you spin it up in standard spec and push hard you can soon overwhelm the suspension and chassis so it will probably be worth looking at a spring upgrade as well. you have no idea what lunatic drivers some pensioners are lol

 

[The Flying Scotsman]

Probably some nice uprated Teins would do it but would not want to spoil the ride.

 

[Baguette]

I've done a remap stage 1 on my Q30S 2.0T combinated with an ethanol conversion, in order to use E85 instead of 98.

From 211hp and 364nm my car was powered up to 248hp and 415nm.
After several tests on the road, it appears that on full throttle to the red zone the car switch to fault mode with an orange sign on the dashboard and big loss of power.
So the garage decrease a little bit the power: same fault mode.
So they decrease again and it was all good, i have 231hp and 400nm.
I've done this remap since one year, i put only ethanol E85 and have no problem, works perfectlly.