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2012 SLK350
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37 Posts
Discussion Starter · #1 ·
Does anyone know what year (if any) that does not include an automatic (ECO) start/stop button for the R172 SLK55 AMG? I owned a 2013 C300 4MATIC that had the feature which I hated having to turn off every time I started it up.

I've been browsing car listings and seen the ECO button on all of the models from 2012-2016. Perhaps they don't exist?
 

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Looking for an SLK
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418 Posts
To my understanding all R172 have start stop. If you see eco button, that's start stop.

You can code it out with vediamo, or just disconnect the auxiliary battery, that permanently turns off start stop.
 

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**Premium Member 2014 SLK200
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4,141 Posts
Fitting a Smarttop unit provides the function to toggle the ‘start/stop’ system to driver preference. Allows for the system to be off at start up and can then be switched back on if desired by using the eco button. Essentially the opposite of factory set up.
And obviously all the other benefits of Smarttop can be enjoyed too😎
 

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2012 SLK200
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152 Posts
Early R172 SLK Build 2011-12 do not have factory auxiliary battery fitted, but you can always code it out permanently, or disconnect the auxiliary battery. A simple way is as suggested by others is to install Smarttop, a 110% must have anyway!!! I haven't regretted buying my smart top and it was fun installing it too!

Hope this helps
 

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2012 SLK350
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37 Posts
Discussion Starter · #9 ·
Thank you all for the responses. It seems like Smarttop will be installed on my future 55. Now if I can just figure out how to install it on my current 350…
 

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**Premium Member 2018 SLC43
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4,499 Posts
Check behind the seats at the bottom of the rear firewall hidden behind the carpet.
I know the place it should be behind the passenger seat, but not there...
The Face Lift R172 does have slightly different fuse lay out and not having the Aux battery does "save weight" to fit in with the newer EU - CO2 regulations.... :ROFLMAO:
 
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