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3. NO - Eco Start-Stop is NOT any kind of Dis-Stress for European engine components - and any "Tech" who says different is smoking crack.
Are you saying that when “stopped” the vehicle is still circulating oil in the engine? I have never heard of the that.
I guess the G is the exception, every other vehicle I know of stops circulating oil in the engine when the engine isn’t running…. Which, as you know, results in less engine lubrication and more wear on the components.
Last edited by 084runnerltd; Oct 29, 2021 at 08:11 PM.
I modified the stop/start on my GL63 AMG using this Vediamo & Xentry method. https://mbworld.org/forums/mercedes-...o-dummies.html
It was a little bit challenging to find the Software & DLLs. (I have them if someone needs them)
I spent a full Saturday figuring out how to get it all working. It is so satisfying that I was able to change this annoying feature by myself.
BEFORE:
Basically, all do is change the ECU coding for "Betriebsstrategie_Stopp_Start" setting: From "Stop start only in E, Default ON" to "Stop-Start Standard Logic, Last Mode"
AFTER:
Last edited by reinarson; Nov 24, 2021 at 10:22 PM.
Reason: fix link
As I have opined in numerous other threads, the G's owner's manual is useless, filled with errors, inaccuracies, and omissions, lacking fundamental information essential to a car's owner/operator. It does not even reveal the location of the battery, but instead advises you to go to the dealership if you encounter a battery problem (duh!). MB knows that nobody ever RTFMs, and consequently invests no effort to produce anything worth referencing.
My favorite entry is in the index where it states "Fuses - See Fuses".
I found no mention of G63 in my manual under capacities, weights etc, just 550 information. I know they are similar but they are still different in many ways. So I reckon it holds 10 quarts of oil and the viscosity, couldn't find that. Says just use MB oil.
UPDATE: Streborx pointed out that is in the supplemental!
Last edited by Jagdpanzer; Dec 27, 2021 at 11:19 AM.
I found no mention of G63 in my manual under capacities, weights etc, just 550 information. I know they are similar but they are still different in many ways. So I reckon it holds 10 quarts of oil and the viscosity, couldn't find that. Says just use MB oil.
From my service record, it shows 10 quarts of 5W40 Mercedes oil. 21 G 63
I found no mention of G63 in my manual under capacities, weights etc, just 550 information. I know they are similar but they are still different in many ways. So I reckon it holds 10 quarts of oil and the viscosity, couldn't find that. Says just use MB oil.
The equivalent useless information about oil is in your G63's AMG supplement owners manual (see page 26). (I can PM you a pdf copy if you haven't one.) Then go to https://bevo.mercedes-benz.com/beam.en.html#cb_category and select the engine oil icon, and select the oil spec in the drop-down menu that matches your owners manual spec (for example "229.51"). Then will appear a long list of compliant engine oils that meet the corresponding MB spec, by brand and name (for example, "Mobil 1 ESP x3 0W-40"), and viscosities that are available.
The owners manual specs 10 quarts for the M176 and M177 engines (G550 and G63), but my experience is that there must be about 1/2 quart of residual oil that never drains, even with the oil filter replacement. Several online suppliers offer oil change kits that include 9 liters (9.5 quarts), not 10 quarts. In my experience of 3 oil changes, 9.5 quarts is a better number. 10 quarts triggers the excess oil warning on the instrument panel.
Last edited by streborx; Dec 27, 2021 at 11:02 AM.
The equivalent useless information about oil is in your G63's AMG supplement owners manual (see page 26). (I can PM you a pdf copy if you haven't one.) Then go to https://bevo.mercedes-benz.com/beam.en.html#cb_category and select the engine oil icon, and select the oil spec in the drop-down menu that matches your owners manual spec (for example "229.51"). Then will appear a long list of compliant engine oils that meet the corresponding MB spec, by brand and name (for example, "Mobil 1 ESP x3 0W-40"), and viscosities that are available.
The owners manual specs 10 quarts for the M176 and M177 engines (G550 and G63), but my experience is that there must be about 1/2 quart of residual oil that never drains, even with the oil filter replacement. Several online suppliers offer oil change kits that include 9 liters (9.5 quarts), not 10 quarts. In my experience of 3 oil changes, 9.5 quarts is a better number. 10 quarts triggers the excess oil warning on the instrument panel.
I found the info and thank you for sharing that good information. Especially the residual oil part. You have done your research well!
My auto start/stop used to work. I'm having the same issue. Regardless whether i use it, it needs to be fixed. Sending it to the dealers soon.
Does this mean the circumscribed arrow "A" is always present on your instrument panel when you start the vehicle (and after warm-up) and leave the mode selector in "comfort"? Does the "A" button adjacent to the ignition start/stop button function to enable/disable the auto start/stop? Or is the only symptom that the engine continues to run (after warm-up) when you brake to a stop?
Does this mean the circumscribed arrow "A" is always present on your instrument panel when you start the vehicle (and after warm-up) and leave the mode selector in "comfort"? Does the "A" button adjacent to the ignition start/stop button function to enable/disable the auto start/stop? Or is the only symptom that the engine continues to run (after warm-up) when you brake to a stop?
yes. The circumscribed arrow "A" is always on now. Start/stop does not work when i brake to a stop. No matter what engine condition. Used to be green most time.
Does the brake hold feature works? If it does, there is something else in the check list that is failing and it prevents the system from turning the engine off.
If I recall correctly the list is in the manual (at least for the W212 platform )
yes. The circumscribed arrow "A" is always on now. Start/stop does not work when i brake to a stop. No matter what engine condition. Used to be green most time.
There are at least a half dozen (probably more) sensors that feed information to control this "feature", and unless one of them also impacts another mission critical system, no OBD-II code gets thrown. I dislike this start/stop annoyance, and regard it as hazardous. The "A" button in my G has never worked to enable/disable it, but shifting out of comfort mode to sport mode would disable it. But as everyone knows, the mode resets to comfort every time the ignition is cycled.
While OBD-II dongles (Mid-City Engineering) are available to disable ECO Start/Stop, I yanked the connector off the main battery charge current sensor. This permanently disables start/stop, while resulting in no OBD-II codes or CEL indication.
Let us know what the problem is once yours is restored to operating.
While OBD-II dongles (Mid-City Engineering) are available to disable ECO Start/Stop, I yanked the connector off the main battery charge current sensor. This permanently disables start/stop, while resulting in no OBD-II codes or CEL indication.
A third alternative is to change the default behavior via XEntry:
Off
On --> Default
Last
Number (3) will remember your last setting when the vehicle is started. Likely Off anyways.
A third alternative is to change the default behavior via XEntry:
Off
On --> Default
Last
Number (3) will remember your last setting when the vehicle is started. Likely Off anyways.
I would very much like to do it this way. I purchased a pass-thru OBD device, but when I downloaded the XEntry files, I received only file corruption errors while trying to unzip them. I would like advice on an XEntry provider who's able to supply quality software and comprehensible instructions.
There are at least a half dozen (probably more) sensors that feed information to control this "feature", and unless one of them also impacts another mission critical system, no OBD-II code gets thrown. I dislike this start/stop annoyance, and regard it as hazardous. The "A" button in my G has never worked to enable/disable it, but shifting out of comfort mode to sport mode would disable it. But as everyone knows, the mode resets to comfort every time the ignition is cycled.
While OBD-II dongles (Mid-City Engineering) are available to disable ECO Start/Stop, I yanked the connector off the main battery charge current sensor. This permanently disables start/stop, while resulting in no OBD-II codes or CEL indication.
Let us know what the problem is once yours is restored to operating.
Eco start stop fixed. Dealer workshop changed out battery.
Even though not a G-Class vehicle, my W212 auxiliary battery failed early as well (20K miles, @40K miles, and @68K miles). I assume the battery that was changed was the auxiliary battery and not the main battery.
There are few threads in the W212 forum trying to figure out why the "smart charging" algorithm tends to intermittently drain the battery, and sometimes "heavily charge" (@30A) the battery. That could account for the "high temperatures" @streborx mentioned.
If you are interested in monitoring the voltage during your driving, you can activate the engineering mode feature before starting the vehicle and see how the charging voltage/amperage fluctuates during your drive. You will be surprised how it behaves.
Even though not a G-Class vehicle, my W212 auxiliary battery failed early as well (20K miles, @40K miles, and @68K miles). I assume the battery that was changed was the auxiliary battery and not the main battery.
There are few threads in the W212 forum trying to figure out why the "smart charging" algorithm tends to intermittently drain the battery, and sometimes "heavily charge" (@30A) the battery. That could account for the "high temperatures" @streborx mentioned.
If you are interested in monitoring the voltage during your driving, you can activate the engineering mode feature before starting the vehicle and see how the charging voltage/amperage fluctuates during your drive. You will be surprised how it behaves.
The type of high temperature I was thinking of is environmental -- parking in direct sun year-round in tropical climates where the battery cooks at 120F + degrees much of the time. Batteries don't charge effectively at either high temps (>90F) or low temps (<40F), and most intelligent chargers prevent charging until the battery reaches a suitable temperature range. However, fast charging elevates battery temperature and can shorten the service life. This is the huge hurdle EVs have to overcome -- quick charging, that can be hazardous as well life compromising.
The aux batteries in MBs are small capacity -- less than 20Ahr (I think) -- and shoving 30A of charging current into one would be an abnormally aggressive charge rate.
Unless the battery was also subjected to constant high temperatures, this seems to be just a statistical premature failure.
Hi Streborz,
Correcting my earlier statement. Car is at 24months now @29,000km+. I believe it stopped working at the 14-15months mark around 15,000km. So the battery "died" or meet the requirement to satisfy start/stop much earlier.
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