Question regarding COMAND 2.0 - MBWorld.org Forums

Feb 17, 2010 | 01:10 PM

mint

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From: Los Angeles

2013 FIAT Abarth 500

Question regarding COMAND 2.0

I have a W208 CLK with COMAND 2.0; I know if I put on different sized wheels/tires than OEM I can calibrate via COMAND to recognize my new wheel/tire combine diameter and match with the navigation speed and distance traveled with actuals.

Does doing this help the tachometer to compensate for the increased wheel dimensions as well or is that in a separate system?

Thanks!

Feb 17, 2010 | 05:50 PM

Skylaw

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From: Tampa, FL

2005 S500 4-Matic, 1978 450SL

I know it will assist your navigation system to be accurate, but I don't know what it does for your speedometer. My guess is, it calibrates that as well.

Feb 18, 2010 | 12:06 PM

mint

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From: Los Angeles

2013 FIAT Abarth 500

Thanks Skylaw, that's what I was thinking.

Can anyone else confirm?

Feb 21, 2010 | 01:59 AM

UK-C200

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RHD C200 Sport Coupe, RHD SLK-55, LHD SLK-350

Not super familiar with the CLK, but most MB's can be told by SDS what size tires/rims are fitted. COMAND does dead reckoning using a gyro and the wheel speed sensors, so the SDS change would be impacting the speed signal. Speed signal is used for miles traveled and speedo, so that's going to keep things accurate. There's a limit to what you can change, and as I recall it's limited to tire/wheel options on the car..

Not sure why your tach (engine speed) would change due to wheel diameter, though..

Feb 22, 2010 | 04:25 PM

mint

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From: Los Angeles

2013 FIAT Abarth 500

Quote:

Originally Posted by UK-C200

Not super familiar with the CLK, but most MB's can be told by SDS what size tires/rims are fitted. COMAND does dead reckoning using a gyro and the wheel speed sensors, so the SDS change would be impacting the speed signal. Speed signal is used for miles traveled and speedo, so that's going to keep things accurate. There's a limit to what you can change, and as I recall it's limited to tire/wheel options on the car..

Not sure why your tach (engine speed) would change due to wheel diameter, though..

That's a darn good question! Meant to type speedometer, not tach.

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