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You can easily do coding when you go into the normal mode (select your W203.040)
Then go into "implizit"
Only turn on stage 2 (ignition on) and don´t let your engine run.
Important: Charge the battery with a charger while you do coding.
I always do coding with the ignition on (engine off) and have never had any problems with it. But always connect a battery charger on the vehicle so that the voltage remains stable, that´s important.
I also coded my engine control unit in the W203 settings. That worked perfectly even it it becomes the W209 CLK.
As I said the W209 access in Xentry diagnosis is just to get to the DTR menu.
I gave it a go and tried today for a short bit…everything I tried with implizit coding yielded a hard no from the ME. Kept faulting out with Communication error 8.561.6067.
Seems my ME is locked.
I do recall this and see in my notes that this happen around June 05, 2019…I just can’t exactly recall how I managed to select ART and make it stick around September 23, 2019…
Looking over my 220.ee notes, I must have followed this as I do have in my screen grabs and notes seeing something similar…
Unlock Procedure (again for w220 ME2.8 before 2004/05/31):
Engine on at idle
Control unit groups
Drive
ME-SE2.8
Development data
Actuations
Complete index of actuations
highlight/select (“DJ_Zugriffsberchtigung”)
(My notes show in ME-SFI for m271 SIM4:
VarientCodierungAktivieren(DJ_VarientenCodingAktiv eiren)
F3
F3
Result: Zugriff erlaubt/freigegeben
Back out gracefully…
Then move to enabling ART in ME…
(w220/ME uses Explizite coding, w203 implizit…)
exactly your description is correct. If your ME is locked, you have to do the following steps. Here are a few more pictures. After that the coding should work.
The loud click after the coding was written is normal, that´s a hard reset of the ME. When I first heard that, I was a bit scared too 😅
The error in the fault memory after coding arises form the reset of the ME -> that´s normal too.
When I coded my ME I proceeded like this:
First - Tempomat ART (externer Tempomat) -> do coding
Clear the error memory
Then - Baureihe to BR209 and -> Karosserie to C-Coupe -> do coding
Clear the error memory
And you have to unlock your ME before coding every time.
Maybe that order should work.
If it still doesn´t work, I can only imagine that the ME recognizes when the coding is implausible.
To find out, simply code first, only to test it -> gearbox (Getriebe to NAG automatisches Getriebe (EGS)) -> like in case of my car / ME
If it still doesn´t work, I can only imagine that the ME recognizes when the coding is implausible.
To find out, simply code first, only to test it -> gearbox (Getriebe to NAG automatisches Getriebe (EGS)) -> like in case of my car / ME
I hope that’s not the case! - As my car has been set to “DTR/ART in the ESP & EZS since 2018 (Dealer) and the ME/implizit since 09/219…
See attached.
Interesting the subtle differences between the implizit and ME printouts - ME shows Body Version as 203, not 463…etc.
Both of these show my VIN and chassis 203.040 in the full image:
So.
I reset ESZ to Distronic [NOT PRESENT] for now…
Always looking for a tip and the proper way to code my w203 USm271 for Distronic.
I can (still) see the DTR with no faults when using the 209.342 session:
Upon studying your notes more in detail, there are some subtle differences, I wonder if it’s related…
Secondary Air Injection (me mit) (you ohne)
Obvious differences (209-NAG)
pollutant standard (me LEV) (you EU4)
Speed limit (me 2) (you 1)
Engine (subtle) (me 18/1) (you 18)
(Although I see MLE18 in my engine print)
Front axle (me BR203) (you Br203)
Rear axle (me 3.46) (you 3.27)
Interesting…
Other than changing the axle ratio (and maybe secondary air) should I match yours?!
BUT the big difference is really that gear ratio as most all (coupe) w209s I can find use that 3.27:1 ratio. Like your C200 w/ 3.27 and the working DTR C350 I know of was able to manually select and have stick his 2.82:1 ratio in his Bosch ME 9.7.
Maybe this is the Achilles Heal/or Key?!
I always kept the gear ratio ‘rear axle’ for cruise control at 3.46 (per my hardware), when it “blows up” to BR 221, it blanks it out Getriebeschaltpunktsteuerung to [——-]….
I wonder if I need to set Body Version to
[A-Cabrio] as I found convertible differentials for 209CLKs with 3.46…
Now knowing cabriolets use 3.46…
Maybe I need to change that coding -
it’s seeing:
“209/coupe/3.46”
As my selected settings and kicking it out implausible (OEM)…because it would need to be 3.27 to be an OEM plausible build arrangement…
So MAaaaaaaaYBE setting it to
“209/a-cabrio/3.46”
(an OEM build arrangement)
will work?!
((also, you made no “chassis/body type changes, if possible, in EZS, ESP or other locations, did you?))
BF_JC230: "((also, you made no “chassis/body type changes, if possible, in EZS, ESP or other locations, did you?))"
No, I haven´t made any other(W209 chassis/body) changes in any control unit.
The Secondary Air Injection (me = ohne) was in my case original on with (mit)
I only changed that because my automatic transmission shifts late the first time after cold start. But it shifts now with this coding late too. So it has nothing to do with that.
I also changed (KAT-Heizen to Heizen 2) original it was Heizen 1. Here the same it hasn´t changed anything that I can notice.
The rear axle was in my ME original set to 3,27m
But it´s interesting that there are so many differences here, maybe it will work when you change that.
There is nothing I can seemingly do to unlock the ME which will allow it to change BR 203 to BR 209. Every time I change that setting, it “blows up” and makes it a funky right hand drive manual transmission BR 221…
Through implizit, the “closest” I am able to get is:
A-Cabrio with ART tempomat…but as BR 203
Tried in my VIN launched 203.040 session, tried a manually launched C200 and in manually selected Xentry 209 sessions…
Copied @SA_King ’s code line for line in both my session and a C200 - adding in the NAG and, it didn’t work…
So what should have been three minutes and three changes in implizit coding seems to be a hard stop.
I am clueless as to how to make the change work…and not get the ME locked error.
1) There is no 1510 error when I move the Tempomat back to stalk with memory & resume in the Developer ME setting…only when set to ART/Distronic
2) Car was at competent local dealer for a while, asked for such communication with Germany, brought in field tech who confirmed set up was good, still could not make card updates
3) I have read headquarters stopped such retrofits and updates to data cards quite some time ago, so even if I could hook up, doesn’t seem Stuttgart will comply
4) No Dealer from Toronto, Canada to Syracuse, NY will admit to even knowing how to accomplish what I’m asking…let alone acknowledge what I’m doing
Seems so odd that the m271 and M272 powered w203s I know with working Distronic just needed to tell the ME it was in a 209…and I can’t seem to unlock my ME to make that code string stick…
It’s been confirmed today by a credible and trustworthy source with DTR retrofit (and every other retrofit) experience that an NAG is an absolute must. As some others have said, without an automatic transmission, Distronic will not work in a w203.
11-06-2022, 09:21 AM
