when you paste back from a PDF it muddles info, post above had a couple still running on a new line

tried adding excel of both german and english

 

well well well,
so the older module (oh yes, on newer software, so maybe why it has more coding bits.) allows you to do it English whilst the developer German refuses to behave (an unusual way around).

that version also shows R22/2 Screen heater not active - so I made it active !!! and now AAC shows a fault on LIN bus re screen heater - so goodness knows what its for UNLESS and thus maybe why its now broken - as I don't think later iterations had the electric screen heating ???

I also looked at three coding option in the UCP heater buttons for
PTC (not there - I don't have it)
Axu heater or something (not there - I don't have it)
Screen heating - is there, as I do have it and its correctly set to "Present" but hasn't functioned for years.....

I copied that from Xentry so we post and even longer list later

 

Botus,

you are the man! I am going to the coding today on the car and report back to you.

 

anyone know how or change units in Xentry from playschool mode in to modern English degrees C

 

coding in Software 2219024202 released week 44 2010

Read coding and change if necessary.

Workshop Coding
Special equipment 'Rear air conditioning' PRESENT
Special equipment 'PTC heater booster' NOT PRESENT
Special equipment 'Windscreen heater' NOT PRESENT
Potentiometer Center outlets Rear air conditioning FITTED
Refrigerant level check DEACTIVATED ( Standard )
Display : MAX COOL DEACTIVATED
Evaporator - Control ( REHEAT mode ) Humidity-dependent ( Standard )
100 % recirculated air mode is possible. YES ( Standard )
Idle speed increase for air conditioning ACTIVATED ( Standard )
Response of refrigeration system to specified torque
from engine control unit ACTIVATED ( Standard )
RHS vehicle YES (what does this silly description mean? - its LHD or RHD, not ambiguous gibberish thank you Mercedes - you halfwits)
Exiting automatic mode by actuating button 'AUTO' again Fixed values
Characteristic of the electric suction fan ECE ( Standard )
Basic fresh air flow Electric suction fan 25 % ( Standard )
National version climate control Europe ( Standard )
Fault detection for heat output ACTIVATED ( Standard )
Transmission ratio Refrigerant compressor I = 1,371 (Info: M272/M273/M278 DE+KE)
Delayed upshifts in the automatic transmission to increase the cooling power output ACTIVATED ( Standard )
Delayed upshifts in the automatic transmission to increase the heating output ACTIVATED ( Standard )
Stepper motor speed (frequency) for manual air outlet setting AUTO mode
Specified evaporator temperature 4,0 °C ( 39,2 °F)
Increased air flow for rear air conditioning NO ( Standard 221)
Air recirculation mode due to engine stop function DEACTIVATED
Air recirculation mode due to expected engine stop DEACTIVATED
Reduction of blower output due to expected engine stop DEACTIVATED
B82 (Vehicle interior humidity/temperature sensor) NOT FITTED
Magnetic clutch INSTALLED NO
Delay period until opening of magnetic clutch 16s

Variant coding
Special equipment 'Rear air conditioning': PRESENT
Special equipment 'PTC heater booster': NOT PRESENT
Special equipment 'Windscreen heater': NOT PRESENT
Potentiometer Center outlets Rear air conditioning: FITTED
OnBoardDiagnose - Einstieg ueber Tastatur: gesperrt
Fan speed reduction via voice control system: ACTIVATED
Refrigerant level check: DEACTIVATED ( Standard )
Display : MAX COOL: DEACTIVATED
Evaporator - Control ( REHEAT mode ): Humidity-dependent ( Standard )
Key-responsive storing of AC settings: DEACTIVATED ( Standard )
Manual recirculated air control: LIMITED ( Standard )
100 % recirculated air mode is possible: YES ( Standard )
Idle speed increase for air conditioning: ACTIVATED ( Standard )
Response of refrigeration system to specified torque from engine control unit: ACTIVATED ( Standard )
RHS vehicle: YES
Recirculated air flap with automatic air conditioning switched off: ( OFF ): CLOSED ( Standard )
Exiting automatic mode by actuating button 'AUTO' again: Fixed values
Automatic closing of air recirculation flap at high speed: NO ( Standard )
Characteristic of the electric suction fan: ECE ( Standard )
Basic fresh air flow Electric suction fan: 25 % ( Standard )
National version climate control Europe ( Standard )
Pollutant-dependent switchover to recirculated air: Normal sensitivity ( Standard )
Change of adjusted temperature: 0 °C ( 0 ° F ) ( Standard )
Fault detection for heat output: ACTIVATED ( Standard )
Transmission ratio Refrigerant compressor: I = 1,371 (Info: M272/M273/M278 DE+KE)
Setting characteristic curve for adjustment value 'DIFFUSED': -2 ( DIFFUSED , Rest of world )
Setting characteristic curve for adjustment value 'MEDIUM': 0 ( Rest of world )
Setting characteristic curve for adjustment value 'FOCUSED': +2 ( FOCUSED , Rest of world )
Delayed upshifts in the automatic transmission to increase the cooling power output: ACTIVATED ( Standard )
Delayed upshifts in the automatic transmission to increase the heating output:ACTIVATED ( Standard )
Stepper motor speed (frequency) for manual air outlet setting: AUTO mode
Specified evaporator temperature: 4,0 °C ( 39,2 °F)
Increase of regulated interior temperature: NONE ( Standard )
Magnetic clutch INSTALLED: NO
Switch-on threshold for drying evaporator: 19 °C / 65 °F ( Standard )
Delay period until opening of magnetic clutch: 16s
Anhebung Luftmenge ED nach DEF inaktiv (1Bit): inaktiv
Offset value of component 'B82 (Vehicle interior humidity/temperature sensor)': +2K

 

he we go

 

Botus & Tim,

I am grateful for your assistance with these fault codes. Having accessed the ACC module, I examined its coding and observed that the heater booster PTC was marked as "present" in error, as was the "heated windshield" option. I adjusted both options to "not active" and cleared the codes, and a quick scan revealed that the fault codes were no longer present.
On a related note, upon acquiring a brand new rear sam and relay/fuse base, I observed a fault code of 9320. What steps can I take to remove it?

 

is it on an air bag ?

9032 The component or the signal line to the component B48/1 (Driver-side frontal acceleration sensor) has Short circuit to positive or Short circuit to ground.

might be a small knock triggered it - about $75 at the front of the chassis leg (behind headlamps - reach from beneath with front cover off), a 10mm headed bolt holds a little electrical crash sensors (one each side). Fit a new one should just go away

 

Yes, airbag is light is on for sure lol Part #??

 

The part number is #0045423518, with two sensors located at the front and one sensor on the rear axle.

 

Labur Parts on eBay is great and I have bought many used parts from them. I like how they list the vin and mileage from the salvage car.

I was going to say theres the heater booster option thats in the dash then there is a heater unit that runs off diesel that would be located up in the front bumper.





Then in the parts diagrams for the 221.171 they do show a heated windshield.







I recently had 2 fault codes saying short to positive or ground. One was for a fog light and the other was for a side marker light. The side marker was just a blown bulb and easy to replace. But the fog light bulb was fine so took further testing. I tested the harness on the car side going to the bulb and was getting power but the ground wire was bad.

So for the B48/1 sensor fault it could be a bad sensor, bad ground or no power. No power could be the wire is damaged or the N2/7 Restrain control unit has a fault.

I would test the harness with a multimeter to verify power and ground.

 

Botus,

kindly review the updated coding for the acc module and inform me if you detect any anomalies or inaccuracies.

 

TimC300 don't need that complexity - 20 mins bolt on a new crash sensor from underneath - job done

 

@clb0099 when in interesting long code jobs... bottom right of the screen, the F11 print icon, will pop up a pdf, and with a pdf - you can then copy / paste where u like... its just this silly site then rolls them together on one line


from top of the list - looks good till these I think are wrong
line 09 - Evaporator - Control ( REHEAT mode ): Humidity-dependent ( Standard ) on the ones I've seen
line 10 - Key-responsive storing of AC settings: DEACTIVATED ( Standard ) on the ones I've seen
line 34 - Magnetic clutch INSTALLED: NO don't think they made any without the variable rate compressor - this likely must be NO or you'll have no AC

 

RHS vehicle, looks like a miss translation in Xentry by the Germans when creating the English version



in gobbledegook Rechtslenkerausfuehrung when translated correctly (?) means its perversely written back to front for a country that makes cars with the wheel on the wrong side for their own domestic market ???
and again in German carries the setting of deaktivert - AKA deactivated

Rechtslenkerausfuehrung deaktiviert - so we have for a left hand drive country, the German
Right-hand drive version: deactivated ... meaning YES this feature is OFF for LHD cars ?

so they really messed up the translation and the answer to the question

My SCN'd module with RHD car says RHS vehicle: YES which as written by them means do I have a car that drives on the wrong side of the road - to which the correct answer is No. But they code the car as Yes
So the translation should be RHD vehicle: YES
and LHD cars have NO

 

oh the halfwits - with RHS they think they are saying vehicle with steering wheel on the right hand side - but that’s is not what RHS says to an English speaking human

RHS Vehicle - top ten searches shows nothing whatsoever to do with LHD or RHD or anything to do with driving on one side of the road or the other
RHD Vehicle - top ten searches brings 10 links specifically to do with Left or Right hand drive

 

Botus,


I am in the USA and my car is left hand.

 

I know - but the Coding parameter shown in English versions of Xentry is written incorrectly, and the correct coding choice becomes more confusing if you look how it was built (using the German language to try and bring clarity), as that also brings in an invalid answer - I was trying to understand how Mercedes got in such a mess moving from German into the English Language - that’s the point I worked out and posted in #41

with "RHS Vehicle" they think they are saying Vehicle with steering wheel on the right hand side - which for you means code it to OFF, but that’s is very unlikely to compute in the brain of a normal English speaking person - or indeed if you search for that phrase on the web

 

Broadly speaking about coding these vehicles....I don't know how, and have never dived into that part of BenzNinja's software setup. Since this is my hobby and I'm always trying to learn more, does anyone have suggestions for where I could go to learn?

 

there is basically nothing to fiddle with - they come with usual junk software, set up how Merc think it should be... software updates are fixes for known bugs or to enhance diagnostics coz the dealer couldn't fix them when it was in for warranty - they never add more functionality or features - and again when done online with Merc - outside the SAM modules they never bother to state if it needs an update - a dealer who gave a toss would sniff around a given module, get confused and try an update as a last resort

if so it looks at what it has in a given module, looks at Mercs current best effort now for that module, and if you say jolly good, lets break it - if writes the update, then it says to Merc (online) now what, and they say well it was built with these options so you need to configure that software in this module like this - and an online SCN (software calibration number) tick box exercise, sprinkles some fairy dust in the mix - job done... then you go home and because Mercedes do it all wrong with one random module update confusing another part on the same canbus they never bothered to think about, various bit no longer work quite as well as they did. Sure it should start and run just as well, but subtle clever features the old boys thought about that got parked in the Facelift updates - where junior engineers still being bottle-fed have no understanding of the features put on the car during the 2003 to 2006 development cycle, and they slowly get eroded with each change till its not much better then a Mondeo with a flat battery

For example
the subtle operation of the brakes and throttle with Distronic Plus that makes it drive like a chauffeur is at the wheel - becomes a Hoddie in a road rage incident (2010 Rear SAM update)
the cruise control decides it been raining for too long, so throws the message on the cluster I can't be bothered any more - and won't come back until you key on off cycle the car (2010 Rear SAM update)
the headlights that used to waft around to perfection as you go round twisty back lanes, becomes a night club light festival for drug addicts (2007 or 2008 Headlamp update)
the heated windscreen no longer operates in the Winter like it used too (Front SAM or OCP update)
the subtle fade out of the source to allow the Sat Nav directions to fade in and be heard - becomes an argument with both at the same level, at the same time (Still trying to understand this one - and have been for 7 years when Merc broke it)
Rear sun shade states its confuse / broken in diagnostics (Rear SAM update from 2010 mandating junk facelift update is suitable - they still peddled that error for 11 more years, till shockingly they resolved it, turning off a feature they shouldn't have had, in an SCN update in year 2022)

And lets be VERY clear all those bugs came via official Mercedes updating online with Germany - way before I was aware of experts like BenzNinja

Door Module updates, Engine, Gearbox, and Heater buttons updates - should cure issues - everything else is a bit more open to interpretation

and aside from that cycle of incompetence - what often gives headaches is fitting the wrong parts and end up with coding which is more confused than Merc's rough efforts. Fit upgrade options and don't know bits like the CGW need tweaks to the diagnostic choices when the car looks at life. So things misbehave like adding auto boot closure that doesn't work. Or adding Sirius or European DAB, where and the Comand MOST now believes its muddled yet, it still works (...as the diagnostic choices weren't updated - when it looks for the next module inline it finds a different device). Or various people fiddle about and make things worse because they want to play with stuff they don't understand. But often get away with it as haven't had the car long enough to know how it worked before people messed with it

BMW is the only manu I know that update a car in a sensible proven, repeatable manner - for any car or bike it looks at the entire software package as built on the entire car - and assembles an update package (called an integration level update), it goes around every single module bit by bit saying have this, configure like this and moves on to the next module - till every part of the car gets updated either with the new stuff or a fresh still approved release of what it had. So if they mess it up every car running the same set up gets messed up, making them easily aware of the issue, so they can actually bother to fix it.

Merc random mix up method, means each car becomes a confused unique mess no one understands, if stuff stops working its a unique issue on your car - and as every IT guy in the world believes they can't be wrong, it must be the customer who's an idiot

These cars are way before the toys tinkering era you got on 2010 to 2019 BMWs, where you can fiddle and ruin the car adding RR reverse sensor noises and lights that work back to front using a phone app

in many ways Merc where ahead of their time trying to stop a user easily adding toys they hadn't paid for at build - the subtle secrets of the SCN handshake coding does far more than the visible tick boxes you can get at. These days with safety and paid options via apps - they have moved the current crop of cars to Secure gateways - this stops anyone tinkering unless online and the Manu can see what you fiddles with if you do have access

 

got more muddle ups for you on coding

Trying to resolve the Comand source fade feature - Merc broke.

1) A cluster update ruined the back lighting forcing full brightness during the day (trying to bodge a hardware fault early cars had in cold weather where a purple tinge afflicts the speedo for 10 minutes). Previously you could set it during the day to whatever you wanted.

2) The point I really want to make - Having updated lots of modules chasing the Fade bug, I decided as a last resort the Rear SAM likely did it, when they force a facelift bunch of junk from week 43 of 2009 (which works in conjunction with new menus the NTG3.5 cars have) - As originally built the old boys had gone mad and had fitted a morphing Vol level to the Comand based on ambient noise levels the internal mic was picking up along side road speed (I believe it gets from the Rear SAM). But the tech document Merc have in the factory describing a method of SDVC that is quite different with user menus on the Comand...

Thus I purchased the next HW iteration of Rear SAM (that was still current part for direct replacement) and it comes running a version of SW the people fitting couldn't code correctly. And that’s because Merc play funny. They put for sale versions that will mostly allow the car to operate, but not be fine tuned. The idea being a Main dealer with Online Xentry plugs it in to set it up - and it immediately says flash software and then codes via SCN and that’s it. But in following that procedure I'd have ended up in the vary same space with week 43 2009 SW junk I was trying to move away from.

So they gave the car back with my old SAM back in, but didn't even fit that back correctly - cue new SRB without bent pins, and I refitted the later SAM and went to code it myself using a Snap On tool - and by some confusion they too were too stupid to know Merc build New HW that deliberately won't code fully. But in trying, had muddied their stuff, and in trying to unravel the mess they were in managed to write a Pop up on screen about Seat versions on a given car will throw the SAM in a tail spin - so remember to check and code the rears seats correctly. You don't get that notification with Xentry !!!

Once I set the rear seats to the version the car was built with, half the rest of the car got over many weird diagnostic bugs showing up in the OCP and Rear SAM !!! And by then EasyPhil had found other Rear SAM SW iterations they been messing with - and I got BenzNinja to flash a later version but still pre facelift SW at the Car (something Mercedes will not let you achieve) and that allowed the usual coding options you need, to show up. But sadly it also brought back the nasty feature disabling cruise if the fast wipe has run greater than X.

Later iterations on from the Original Rear SAM SW - I also think means the car Geo-fences the Radar cruise for military installations - and so you can be driving happily and it just turns itself off mid drive. But its always in the same places nuclear missiles might reside... Never used to do that - so it might have been later mapping also brought that irritating feature to life - the Orig handbook just gave you a list of places you were meant to manually disable it.

Might be related - years back I forget which Brand of car - but famous transcripts of a Fighter pilot on a training mission with his Military air traffic control were all over the internet - he was seeking confirmation if he should kill some granny driving on a public road in Wales - his plane had missile locked on her car, and he wanted to know if he should let her have it...

 

I previously believed that I had resolved the heating issue, but I am now confident that it is not attributed to a blocked heater core. Following an extensive flushing process using water, air, and chemicals, no blockages were detected. Nevertheless, I have observed that it takes a considerable amount of time for the vents temperatures to reach 80 or 90 degrees, often requiring an hour or more of idling. This has been verified through the utilization of a star computer connected to the vehicle, which monitors sensor temperatures. Today, I replaced the heater control valve to eliminate any potential issues, but this did not result in any changes. My subsequent steps would involve replacing the climate control and AC/heater module, and if necessary, the thermostat, as it is possible that it may be stuck open. The fact that I was previously able to attain a vents temperatures of 113 degrees two weeks ago, only to be unable to exceed 80-90 degrees later, is puzzling. I have tested all actuators and blend doors via the Mercedes star system, and they are functioning correctly.
Does removal of the ac/heater control module require removal of the glovebox as well? Botus, could you provide more information about the unusual nut you mentioned that holds it in place?
Lastly, I observed that the hose leading to the coolant expansion tank on the left is swollen. I will post a picture. I have already obtained a replacement hose to rectify this issue.

 

...ACC module is very simple - but lots of wires to be careful of

the ONLY trim that needs to come off its the panel above your feet - held in with three screws along the front edge - then burn your fingers on the silly bulb, and damage the budget fluff silencing material.

once that panel is out the way - its just two long screws and the module is free to fight out of a gap that’s 10mm narrower than we need to pull it down - go gently rather than locate the module well, or make one where the wires fit end on - its all on the side waiting to get damaged

 

both hoses have had it - the left is about to pop

 

While trying to help someone else with an ignition issue i came across something interesting. It mentions making changes in the EIS control module for things relating to the climate control. I forget what car it was for, maybe an E-class. It was in the Starting and Charging section of the manual.