vic viper

Flashed my transmission the other day and now with a few miles on the meter I can confirm that it works, the 2-3 jerk is gone, unfortunately I was in a bit of a rush when I installed it so I forgot to take a screenshot of the software version, but the latest available SW should be this one.

ManiacGT

I'll be interested to know if is different to mine which was done a few weeks ago. Dealer is now saying EEPROM data will be sent from the gearbox to MB on mine for further study.

Royce118

Does this work on the W212 as well?

Lego

Good to know. I'll schedule a appointment and see if the software fixes it. It's not only 2-3, mostly 1-2 shift that's jerky.

notabenex

Do you have to pay for software update? I want it also, but they told me to pay for it, or wait for scheduled mainteance...

ManiacGT

Software will be updated under warranty if you complain of a fault that could be related to it. If you just ask for new software for no reason you may need to pay for their time.

floridadriver

Great news...thanks for your expertise!

Tobby

My car do not have this problem. It's produced 10.08.15. I guess I have the new software then?

ManiacGT

The issue is most prevalent in the petrol 4 cyl cars. What's yours?

Tobby

It's Petrol, C180T CGI 156 hp.

Xzer0

I checked with my dealer and they told me there's no software update and that MB never releases software updates for their cars

I got my car in March

rbrylaw

Time to find a new dealer..........

Xzer0

anybody has any kind of documentation that shows and proves that there are updates?
like papers from the service

pek

I did go into my dealer and complained about wonky shifts. The service mgr said that there is an update to the transmission, no mention of version. So the dealers know, or, should know. Said it will take about 3-4 hours, so I was going to get my 300 detailed. And, I could get a loaner while having this done. i mention this because US car dealers have gotten away form this for the past decade or 2.

pek

megaoctane

thanks Vic Viper. have been away on vacation for two weeks.
called the dealer, and booked an appointment for next thursday. They said there was a service bulletin also regarding fuelpump, and i had to come in with low gas in the tank.

darwin329

Hi am currently driving c400 do i need to update too?? thanks

vic viper

Nope, only the four cylinder petrol turbos M274.

ManiacGT

Mine has the latest sw, it's still jerky at times. But better. It's still not as smooth as id want and expect. Acceptable when warm but when cold it can still feel snatchy.

megaoctane

As long as it's a little better than earlier.

darwin329

THANKS!!

StanNH

This is from my last work order:

"1. Central Locking System (Keyless Go) sometimes does not detect fob. Found fault code U016887 communication malfunction. Available update performed, fault codes cleared.

2. Gas pumps shut off while fueling car. Installed 001 470 13 93 shut off valve for fuel system vent line.

3. Performed software update to the Engine Control Unit."

In my case, the Keyless Go software update completely resolved all of the intermittent issues I had been having. The ECU update resulted in somewhat smoother shifting, but nothing else I can feel.

All dealers are supposed to routinely check for software updates, TSB's, and campaigns whenever a car is in for service. For anyone at any dealer to say that isn't so is simply wrong.

MBtech1098

...Kind of

When a car comes in one of the first things that is done should be a VMI. If there is an open Service or Recall Campaign on the vehicle, it will be flagged on the VMI and should be added as an additional line to the RO.

When a technician is addressing a complaint (we will use a trans complaint for example) the first thing to do would be check fluid level and condition and drive the vehicle to verify the complaint. Following this the tech should run a quick test on the vehicle, review trans adaption data, and generate the EEPROM data for review by MB if needed.

At this point they should have verified it and begin to look for LI's (TSB). If there is one available fitting the complaint they would carry out the repair as per the LI.

A tech may elect to check if there is a SW update however they won't check every control unit in the vehicle, only the component with the complaint.

Disclaimer - US market process

megaoctane

the car is at the dealer workshop today. a new action is required regarding the fuelpump. they will try to fix this, and then they will check for updates for the 7G tronic. the car had Service A done in early July, and there was no new update for the transmission at that time. i hope the update exists and i can finally get rid of the bad 2nd to 3rd shifts.

megaoctane

Just GOT the car back. Transmission is much smoother now.

Spearhead

That is great news. Did your paperwork identify the software version installed?