Keith66

I recently bought a Launch X431 Elite 2.0 bidirectional OBDII scanner for Mercedes-Benz and it is a great little scanner. The bidirectional ability allows for variant coding which is awesome for such an affordable and easy to use device.

One of the things I wanted to change is the irritating (to me) engine stop/start function. I usually just hit the button to turn it off every time I start the car, but this is not a cure, as I sometimes forget and the next time I stop, the engine quits, argh! I freaking hate that… do not want.

After some trial and error, I found the proper way to disable this with Launch and I want to share it here for others that have a Launch 2.0 device.

What this will do is configure the start-stop/eco button to maintain the last state and will survive ignition switch cycling. In other words; If you switch it off, it stays off forever. If you switch it on, it stays on forever. It will remain in that state until you change the button state, so you can turn it back on if you really wanted to.

Follow these selections from the Launch home screen:

THIS IS WHAT WORKS

• Diagnose
• Diagnostics for Mercedes
• Automatically Search
• Enhanced Version
• System Selection
• Type of Drive
• PTCU - Common Powetrain (“Powertrain” is misspelled) Controller
• Variant Coding
• Implicit_variant Coding
• Scroll to “Operation Strategy_stop_start”
• Select and change value to “Stop-Start Default Logic, Last Mode”
• OK
• Select ‘Write Coding’ and follow the prompt instructions.

It is done!

The following DO NOT WORK - the stop-start switch will still be on by default and the stop-start system will still automatically activate:

THIS DOES NOT WORK
Diagnose
Diagnostics for Mercedes
Automatically Search
Enhanced Version
System Selection
Type of Drive
ECM - Engine Control Module(ME)
Variant Coding
Implicit_variant Coding
Scroll to “Engine_stop_start” and select
Change value to “Stop/Start Not Activated”
OK
Select ‘Write Coding’ and follow the prompt instructions.

THIS DOES NOT WORK
Diagnose
Diagnostics for Mercedes
Automatically Search
Enhanced Version
System Selection
Type of Drive
ECM - Engine Control Module(ME)
Setting/Changeover
Operating Mode Stop-Start
Select and change value to “Stop/Start Not Activated”
OK
Select ‘Write Coding’ and follow the prompt instructions.

I'm happy that I don't have to remember to hit that stupid button anymore and I didn't have to spend the extra money for an aftermarket solution or pay some “coder” to do it for me.

GTA_S6

Awesome work! Sounds like this is a real opportunity for a playlist for unlocking hidden features. Please keep us posted on anything else you learn with your new toy :-)

Seems like lowering is also a capability.

Keith66

Thanks! Yeah, there's a lot in there for sure and I'm just scraping the surface for specific things. I also came across where you can increase the top speed limiter (vMax), but I have no desire or need to change that myself.

I'll probably just use it to change minor things to tweak, like how when you lightly push the turn signal stalk and it will indicate 3 times. Mostly when I change lanes, it's already clear and I only need 2 flashes, the 3rd one is generally going off when I'm already in the lane I wanted. I haven't found that parameter yet, but I haven't tried that hard to find it. I'm sure it's in there somewhere.

So far, I can highly recommend this tool, it works great. Especially for the price!

Keith66

BTW, I ordered mine from Amazon here:

https://a.co/d/4skAA5k

W205C43PFL

Try updating to the latest version, I heard that fixed things.

NickTheStick

This is a great thread. Im going to pick this up. I wonder if ILS+ can be activated...as well as lowering?

Keith66

I doubt you'll regret it, it's a great little device.

I already had my ILS+ activated and a lowering module, so I didn't look into it myself. I think the lowering is probable, the last time I was in there poking around, I remember seeing Level Calibration under the Suspension/Chassis CAN bus that showed the height settings for each corner so I assume you could change the default levels to lower values.

E63Wagen

Will this also code to activate the ILS+ headlights?

GTA_S6

In the W212 section this has been done. Likely similar to W213.

https://mbworld.org/forums/e-class-w...ml#post8949812

crashmtb

Almost, but not quite. A couple of parameters don't seem to stick. I've tried a few times.

crashmtb

Almost, but not quite. A couple of parameters don't seem to stick. I've tried a few times.

RACE_MX

I wan't to disable start/stop. OP has a 2018 car, can anyone confirm this scanner works with more recent models, i.e. 2023?

sixfive

don't mean to redirect this thread but what is ILS+?

taphil

Intelligent light system

W205C43PFL

Correct, the plus just means it can dim the oncoming traffic (in to shadow blocks) while keeping rest of the high beam active to not blind drivers. The non-plus simply means it just turns on and off when there is low ambient light just like every other car maker's adaptive high beam.

OrientBlue3

Is it possible to disable eco start/stop while keeping cylinder deactivation active?

W205C43PFL

I always think cylinder deactivation decreases the lifespan of the engine but I could be wrong because to me some cylinders work harder than others in this mode, there is uneven wear and well the balance is messed up. I don't know the details.

DAMG63

I have a 2021 e63s and I can confirm it did not work with my model.

BenzNinja

iTrader: (4)

instead of messing up your car with a Toy, leave it to a professional
At BenzNinja, for new members all this is Free

or rent. there are tons of more mods

DAMG63

@BenzNinja what is the process for something like this?

Just want auto start/stop disabled.

BenzNinja

iTrader: (4)

need your vin to check but would you NOT want the fabulous ILS+?

all info is on our website www.benzninja.com

W205C43PFL

I certainly recommend ILS+, it is like magic.

RACE_MX

Does the 2023 have ILS + already enabled? I was driving and put on my brights and the headlamps were doing things I've never seen before, moving the light around, cutting part of the light, how do I know if I have it?

taphil

Stock ILS turns the lights with the steering wheel and turns on high beams automatically ONLY when there's no car in front or oncoming traffic. If you really have ILS+ enabled, the high beams will be on a lot more often regardless of whether there's a car in front of your or oncoming traffic, it'll adjust the light pattern/pixels as needed.

W205C43PFL

I heard the USA finally has it but very limited, I think there was also a brightness limitation unlike the full ILS+ in Europe.