W639 Viano 2011 125th Canbus on Stereo

[Cyscrofer110270]

<div class="bbWrapper">W639 Viano 125th edition 2011 canbus issues on aftermarket stereo.<br /> <br /> Hi guys <br /> I've recently fitted an aftermarket stereo and no problem other than the canbus for the stereo shuts down.<br /> If I disconnect the electric circuit that converts the canbus signal then it immediately comes back to life a d works fine for a couple of journeys but if I turn the stereo off on the next start up the canbus has turned off.<br /> This is driving me crazy as you have to remove the stereo to access the circuit...<br /> Other than fitting a reset switch in any advise please?<br /> I dont want to spend a fortune with the dealershi over this.<br /> <br /> Thanks</div>

 

[m80]

<div class="bbWrapper">Pulling the appropriate fuse/s should reset easier than your method.<br /> Fuses listed for radio / entertainment are;<br /> 19- 20 amp,<br /> and under the passenger seat, right side of 2 banks<br /> 13- 20 amp.<br /> <br /> As this is aftermarket, and it seems to be that unit that confuses the canbus, I can't see MB could help.</div>

 

[Cyscrofer110270]

<div class="bbWrapper">Thanks for that.<br /> Trouble is I don't want to be pulling fuses everything I want to turn the radio on.<br /> <br /> The company y who produces the canbus converter have said send it back and they will check and replace it free.<br /> <br /> My plan since mercedes are stupid enough not to fit this particular model without a switched ignition wire....<br /> Is to tap a wire from the cigarette lighter supply wire through a 1 amp fuse up to the stereo that way the only things the canbus circuit provides is illumination and steering wheel volume controls..<br /> <br /> <br /> I could even run the canbus circuit supply of the same switched wire so it resets every time regardless that way it will work no matter what.<br /> <br /> <br /> Also tip for anyone doing such a conversion to any merc I strongly recommend a noise eliminator £13 amazon....<br /> The canbus box specifically built for Merc are available from Sound Dynamics £50 made by a company called Incartech.<br /> <br /> Hope this helps anyone pla in on doing such an upgrade.</div>

 

[m80]

<div class="bbWrapper">The later Chinese systems I've installed no longer need the switched feed. It was required for earlier and picking up the ciggy supply is the way.<br /> <br /> But you asked for a way to reset. Your switch would work but easier than HU removal is to pull the fuse.<br /> <br /> It may be that any canbus controller might have conflict/s, especially when warmed.<br /> On the 211, after 2 or 3 hours drive it has been known to totally screw with the canbus system. I pull the fuse and it's sorted.<br /> We have just done 650 miles over a few days and no issues with it, even after 6 1/2 hours down to Exmouth.</div>