Mercedes Ecoroll

Hiya

I’ve not long changed jobs and the new one has me in a different truck on each run/day. It’s not too bad as they have a variety of vehicles there. However, they also have Mercedes MP4 variants. 2018 versions. They seem OK and drive well enough but every time the engine restarts the ecoroll setting is reset and when it engages, ie slips into ecoroll whilst driving etc, a buzzer/alarm sounds in the cab.

By going through the dashboard control panel it is possible to switch off the ECOROLL to stop the alarm sounding but I don’t know why its happening and the company seems unwilling to get it looked into. Unless I defect it. But it happens on all of their Mercs and Id like to know why rather than getting into more trouble.

For now, I just need to remember to switch that ‘feature’ off before driving off.

Advice please?

Not driven a 2018 model but I’ve never had any alarm go off, you should be able to adjust the eco roll parameters or even turn it off by going through the menu.

But I’m a little bit out the loop now with the Mercs.

bald bloke:
Not driven a 2018 model but I’ve never had any alarm go off, you should be able to adjust the eco roll parameters or even turn it off by going through the menu.

But I’m a little bit out the loop now with the Mercs.

So far to cancel/stop the error we turn the option off in the settings. But it’s a long continuous beeping kind of buzzer.

Annoying because I don’t mind the ecoroll doing its thing.

Driven new Mercs with eco-roll, can’t recall hearing it doing anything and the only thing that makes you aware it is is the drop in engine revs.

I’m sitting in a 2015 one now (heap of crap) got no alarm on eco roll. Seems daft having a alarm on that but I can’t see it being a fault unless it warning you that it’s not working.

It is certainly an odd one. The only thing I can think of is it might be something to do with the vehicles that run on biodiesel. But we shall see.

What is actually coming up on the dash. Ant thing that has dings and bings will show on the central dash

When I’m stationary, there are no alarms going off. When I’m driving and it’s on the power everything is okay, but when I am not on power and it’s on eco-roll a buzzer sounds in the cab and continues to sound whilst the revs are at idle, and the truck rolling along.

In order to demonstrate, I would have to be holding my mobile phone whilst driving, which isn’t going to happen. I’m sorry.

So, when I’m in the Merc, at some point in the journey I will disable the Ecoroll mode, so the alarm doesn’t go off. Usually, whilst the alarm is sounding at the time. But this also means that it idles normally without saving any fuel.

I have asked in the depot, all the drivers know about it and so the management but they can’t change it because they don’t know what to change.

My last 2545 15 plate merc coped fine with eco roll. But not at this new company. Weird

As someone has said above, there would be a warning on the dash showing at the same time the buzzer is going off. Makes me think it’s not the truck that’s doing the buzzing. Is there maybe a type of microlise system on your truck that’s not set up correctly and warning you that you are not in the correct rev range for your current road speed when in ecoroll?

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I drive Mercs every day and they all have ecoroll. Part of my checks includes turning it off. It has to be done every time you turn the ignition off but once you know where it is it’s easy enough. As for an alarm since I don’t use it I don’t get one!

Never heard any warning on ours and I use ecoroll most of the time… I’ve had a look through the online manual and there’s a couple of things that come up

you exceed the maximum permissible engine speed
the speed or engine speed is too high when making a gear change

What limits are you setting for the +/- ? I’ve got to pick my unit up from Rygormortice tonight, I can ask them in there (collectively they might be able to come up with something!) unless you’ve already solved it

Actrosman:
Never heard any warning on ours and I use ecoroll most of the time… I’ve had a look through the online manual and there’s a couple of things that come up

you exceed the maximum permissible engine speed
the speed or engine speed is too high when making a gear change

What limits are you setting for the +/- ? I’ve got to pick my unit up from Rygormortice tonight, I can ask them in there (collectively they might be able to come up with something!) unless you’ve already solved it

If its set to A economy the over / under speed is normally +3 and -2 .
I reckon your getting over speed or a warning tha5 your engine speed is too high when allowing the engine to slow you down but you’ll still get something on the dash

I too would just switch the infernal bloody device off, stop this sodding buzzer driving you up the wall.

Ecoroll doesn’t work on MAN’s when you drive in manual, yes it will cut the power before the crest of a hill (causing elephant racing) but it won’t go into N, fortunately like Mercs MAN’s are equipped with an off button on the menu so proper driver controlled cruise is available…unlike new gen Scanis where you can’t turn the bloody thing off at all.

I do wish these makers would standardise operating systems, but Heaven forbid they all be based on DAF’s with that irritating bloody default back to eco mode on the poxy gearbox they fit.

nick2008:

Actrosman:
Never heard any warning on ours and I use ecoroll most of the time… I’ve had a look through the online manual and there’s a couple of things that come up

you exceed the maximum permissible engine speed
the speed or engine speed is too high when making a gear change

What limits are you setting for the +/- ? I’ve got to pick my unit up from Rygormortice tonight, I can ask them in there (collectively they might be able to come up with something!) unless you’ve already solved it

If its set to A economy the over / under speed is normally +3 and -2 .
I reckon your getting over speed or a warning tha5 your engine speed is too high when allowing the engine to slow you down but you’ll still get something on the dash

I set mine at 88 & +2 -2 and only have it in ‘A’…just sit back & let the motor do it’s own work except when approaching an incline… I’ll knock it off & wind it up to 90 then… saves chucking extra fuel in and not gaining anything… might save a bit, might not

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Volvo system, is +5-3 so it will go up to 95k then start knocking you back to 90 then N when it feels it can just roll, drops to about 87 then Powers up again, works on the effort the engine needs. Nice n simples.

Actrosman:

nick2008:

Actrosman:
Never heard any warning on ours and I use ecoroll most of the time… I’ve had a look through the online manual and there’s a couple of things that come up

you exceed the maximum permissible engine speed
the speed or engine speed is too high when making a gear change

What limits are you setting for the +/- ? I’ve got to pick my unit up from Rygormortice tonight, I can ask them in there (collectively they might be able to come up with something!) unless you’ve already solved it

If its set to A economy the over / under speed is normally +3 and -2 .
I reckon your getting over speed or a warning tha5 your engine speed is too high when allowing the engine to slow you down but you’ll still get something on the dash

I set mine at 88 & +2 -2 and only have it in ‘A’…just sit back & let the motor do it’s own work except when approaching an incline… I’ll knock it off & wind it up to 90 then… saves chucking extra fuel in and not gaining anything… might save a bit, might not

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Na plod on is the game .
Our lot like to play the microlise game and as I’m on a max 12 hr shift the longer I take the less I do .
Their rules not mine :wink:

Job and knock for me mate but I have to ‘drag it out’ a tad to make it last 6hrs so that it doesn’t look like I’m rinsing it to much!

Thank you everyone for all of your comments.

This only seems to happen on the Artic’s, the rigids don’t have the problem.

We shall see how it goes on I shall just keep a check on things, and follow various bits of advice from this forum on the matter.

Saratoga:
Thank you everyone for all of your comments.

This only seems to happen on the Artic’s, the rigids don’t have the problem.

We shall see how it goes on I shall just keep a check on things, and follow various bits of advice from this forum on the matter.

Sorry mate, forgot to mention that ours are artics…also forgot to mention it to the monkeys at the dealership when I collected mine the other night but then again, doubt they’d have known anyway and I didn’t have a spare hour it would have taken them to get there heads together and come up with something… I’ll ask around though, see if anyone else has had the issue but it seems to me from here, it’s a ‘no’!