Turning off ECO stop start W204 for good

[Merco34]

I want to turn off the ECO stop start feature on the W204 2012, is their anyway I can turn it off for good??

thanks

 

[LTD]

Is there not a button marked ECO that you can use to switch off the function.

I know there is on my C207

 

[Merco34]

yes their is I want to switch it off for good. can this be done so on start up its disabled straight away?

 

[LTD]

I think that it cannot be over-ridden.

No doubt due to EU regulations .................

 

[flango]

Can be turned off permanently with Star I believe

 

[Merco34]

bloody pain in the **** it is ......i thought i broke the motor the first time it cut in.

 

[Minz]

I would have agreed at first but after living with the stop/start for some time, it no longer bothers me. I do tend to override it however, if I want a sharpish start at a junction.
I thought that the stop/start was contributory to the cheaper V.E.D. banding?

 

[grober]

There is a way to do this in AMG models via the mode switch so theoretically possible. [ its not clear if you have to do this every time you start the AMG car in question I'm unsure?] How you achieve this in more cooking models I don't know? If you have your aircon on for example that may stop it?
[YOUTUBE HD]r-zXU9nmcNg[/YOUTUBE HD]

 

[bobclive]

Hi,

I am about to purchase a c class coupe AMG with stop start, I do not want stop start. It appears there may be a solution according to this comment,

In the w204, 207, 212, etc.. there is a 7.5A fuse near the small battery in the back/boot of the car, when you pull the fuse. . Eco is disabled.. simply..

disable eco function start stop

Can anyone try this as I have not got car yet.

Thanks.

 

[Deleted member 113659]

I agree it's a pest. I wish I could have mine disabled.

The engine cut out today just as someone flashed me to let me out into a fast moving line of traffic. Only a few seconds delay but I felt a right fool.

I can understand it saving fuel sat on the M25 for hours on end but not really essential for me.

Rant over.

Ant.

 

[tonysmb]

I agree it's a pest. I wish I could have mine disabled.

The engine cut out today just as someone flashed me to let me out into a fast moving line of traffic. Only a few seconds delay but I felt a right fool.

I can understand it saving fuel sat on the M25 for hours on end but not really essential for me.

Rant over.

Ant.

I agree, I think it's a pain.

I've never had a problem turning a thing called a 'key' if I'm stuck in traffic and want to turn the engine off.

 

[Deleted member 6183]

Is it that big a deal?

I had stop-start on a previous car and would liken it to the 'HOLD' brake function on MB, you know how to stop without applying HOLD just as you can do so without applying stop-start.

I'm amazed to hear that some are surprised at how this technology works though.

 

[bobclive]

The Jag and Rover guys do it this way,

How to permanently disable the Eco stop start

How do I disable auto start/stop? - Jaguar Forums - Jaguar Enthusiasts Forum

Rear of your car,
Lift up the tail gate,
Lift out the boot lining ( there are two sections that just clip out )
You will see two battery's
Do not touch the big battery that's located on the left hand side.

Disconnect the earth terminal on the small battery that's located in the rear center ( the battery looks the same size as a pint of milk in a carton )
Cable tie the earth strap out of the way ( keep it away from the positive lead though!
The above procedure should take no longer than 5 mins.

Job done!
No more forgetting to press your Eco button
No warming lights on your dash,
No cutting out at junctions,

My C class coupe has big battery under hood and small the one in boot, will this work on Merc`s.

 

[Yugguy]

My wife's Yaris has stopstart. I hate it, it's pointless and just there so manufacturers can make inflated mpg claims.

 

[Williamwoo]

I'm not particularly for or against it - had it in my previous C350, but don't in current E350 - but it does make me wonder whether it saves fuel when in traffic for example. Surely the amount of juice from the battery it takes each time (which of course subsequently needs regenerating when the engine is running) to restart, in my case, a 6 cylinder diesel cannot be insignificant. Of course, if you're stopped for more than 30 seconds, say, it might make sense. However, as a previous poster pointed out, there is always the option of using your initiative and turning the engine off yourself!

 

[geraldrobins]

Personally I like it.
Turning the engine off isn't as good as on restart the radio goes off temporarily and the rear seat belt warning appears etc. Nothing major I know but nor is pressing the eco button.

 

[bobclive]

I intend to keep my car for some years,
(1) The most engine wear occurs at startup when the crankshaft rests on the big end bearings through lack of oil pressure (2) most stress occurs on timing chain at startup, once the engine is running there is little stress on that part (3) the more starts there are the shorter the battery life (4) the starter motor will fail earlier and for what, a small saving on fuel.
Some will say the main bearings have an anti wear coating, the timing chain may be stronger, the battery will be more powerful, the starter motor more powerful if that is the case I want the benefit of these long lasting parts if the exist, I don`t want those gains frittered away by this useless stop/start.

Has anyone tried disconnecting the small battery in the boot to disable stop start, does this battery supply anything else other than stop/start.

 

[grober]

A couple of concerns:--- would this be an MOT failure? They fail cars for engine warning lights being on now. Disconnecting the auxillary battery from its charging source may also effect its life if it goes flat- then what if its subsequently required for the MOT??

 

[chrisdean]

Turn it off, you mean that yours actually works? I've got to do 20 odd miles and maybe it'll work but probably not.

 

[rf065]

(1) The most engine wear occurs at startup when the crankshaft rests on the big end bearings through lack of oil pressure (2) most stress occurs on timing chain at startup, once the engine is running there is little stress on that part (3) the more starts there are the shorter the battery life (4) the starter motor will fail earlier and for what, a small saving on fuel.
Some will say the main bearings have an anti wear coating, the timing chain may be stronger, the battery will be more powerful, the starter motor more powerful

I disagree on point number 1, most wear occurs on start up of a COLD engine, not one that has been warmed up before the stop start operates.

On points 2, 3 & 4, I would say that the main bearing would already have a warm oil supply by this time, the timing chain could well be stronger and the battery will be an uprated AGM type along with upgraded wiring to the started motor to cope with repeated starts.

Can't say I've seen any stop start cars broken down in any major hold up yet. Not even on the M5/M6 which took 11 hours from Birmingham to the Lake District on Easter weekend and was stop start all the way.

Russ