Change digital KPH to temperature in speedo

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anparkinson

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Tn339qa
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CLS 320
My speedometer also shows the same speed in KPH in digits. I want to change that to show the outside temperature.

I can select that option in settings but it never changes. Am I missing something.

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This is a software configuration on the Instrument Cluster, but unfortunately the configuration can only be changed using MB STAR diagnostic computer (i.e. it is not user-configurable), so you'll need to see a specialist with STAR. It's known as 'Delete UK' mod.

Essentially UK cars have the speed in KMH showing at all times (for in case you take the car to the Continent...). By removing the UK-specific config, the Instrument Cluster reverts back to the default European configuration, and the temp is displayed again.
 
If this is of interest, them Comand UK are not a million miles away from you (25 miles, to be precise), so might be a good idea to pay them a visit, and also ask what else they can update on your car while they're at it?

 
I was under the impression that it was a legal requirement on UK cars to have the dual display, either by a second set of numbers on the speedo dial or the way MB do it, so removing the UK designation via Star could cause problems with legality. Happy to accept I'm wrong though!
 
I was under the impression that it was a legal requirement on UK cars to have the dual display, either by a second set of numbers on the speedo dial or the way MB do it, so removing the UK designation via Star could cause problems with legality. Happy to accept I'm wrong though!

The legal requirement is satisfied without the UK config.

The car only needs to be able to display the speed in kmh at any time, and this can be achieved by changing the digital speed display from mph to kph (maybe on some models it's not possible? But on the models where you can change the digital speed display from mph to kph, this is all that is needed).

The issue that MB has is that if you drive on the Continent and bring-up the digital speed display in kph, then you can no longer use any of the display other functions... because if you tried to use the phone or radio from the steering wheel controls, or have the satnav instructions displayed, then the kmh speedometer will go away...

The UK config allows the instrument cluster to be used normally while the speed in kmh is permanently displayed at the bottom.
 
I had this done on STAR, aswell as getting the tank content enabled, a worthy mod for anyone with a W209/W211/W219
 

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