Question about Range device for AFM
Thread Starter
8th Gear
Joined: Sep 2023
Posts: 8
Likes: 0
Question about Range device for AFM
Hi,
New owner to a C7, previously had a C4, and I have a question about the Range device for AFM. According to the instructions, it is recommended to unplug the Range if the car is not frequently driven. The concern is parasitic draw on the battery. I drive the C7 2 to 3 times a week and will continue to do so in Spring, Summer and Fall. I plan to drive at least once a week in Winter, depending on the weather (I live in Pennsylvania). My question is for those who have the device, do you unplug it and just plug it back in prior to driving?
Thanks for any info.
New owner to a C7, previously had a C4, and I have a question about the Range device for AFM. According to the instructions, it is recommended to unplug the Range if the car is not frequently driven. The concern is parasitic draw on the battery. I drive the C7 2 to 3 times a week and will continue to do so in Spring, Summer and Fall. I plan to drive at least once a week in Winter, depending on the weather (I live in Pennsylvania). My question is for those who have the device, do you unplug it and just plug it back in prior to driving?
Thanks for any info.
Drifting
Joined: Jun 2015
Posts: 1,855
Likes: 694
From: Lagrange KY
We don’t have emissions testing in KY and my 2014 base Z51 A6 has long been out of factory warranty. So I leave my Range plugged in full time. I do however use a battery maintainer any time the car sits in my garage. It’s my understanding that the parasitic battery drain issue from the device was resolved years ago with a software update. Just buy a new device (not a knockoff) from the manufacturer and you should be good.
Pro
Joined: May 2021
Posts: 500
Likes: 432
From: Queen Creek, AZ
There are two editions of the Range unit in circulation. The early (first) version featured a parasitic draw and needed to be removed when the vehicle was going to sit for a few weeks. The second version eliminated the need to remove the unit. Both versions require the user to remove the unit and drive the vehicle for a few hundred miles in order for the vehicle to accumulate enough data to pass emissions testing. If you are confused as to which version you have, check with the manufacturer. Their customer service will be able to give you a definitive answer to your question.
Administrator
Joined: Mar 2001
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From: In a parallel universe. Currently own 2014 Stingray Coupe.
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The newer versions of the Range AFM Eliminator does not have the concern about parasitic draw. With your frequency of driving the car, you shouldn’t have any problems.
Intermediate
Joined: Jan 2021
Posts: 34
Likes: 10
From: Warner Robins, Ga.
I have a Range in my 2019 Stingray. It's the latest version and I have had no issues with parasitic draw. I use a trickle charger occasionally, but sometimes the car sits for a week or longer without the charger. No problems.
Drifting
Joined: Jan 2014
Posts: 1,568
Likes: 594
From: Jefferson City Missouri
I bought my Range device in October 2018 right after I bought my 2019 GS. It has been plugged in 99% of the time. I only unplug it a few days before service appointments and drive it enough to set the readiness monitors. Always on the battery maintainer when it is not being driven.
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Brett Foote
Le Mans Master
Joined: Aug 2004
Posts: 5,820
Likes: 108
From: California
Bought mine earlier this year and from the main range site. Assuming I have the latest model so I plan to leave plugged in all the time.
However the box it came in says to unplug if the car will be sitting for more than a few days?
ill reach out them directly for clarity.
However the box it came in says to unplug if the car will be sitting for more than a few days?
ill reach out them directly for clarity.
Roadster Madness. 😠
Joined: Sep 2009
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From: Ventura Co Ca
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Congratulations, on your new C7. I had a C4 for many years. You are going to enjoy it a alot. Especially, if you had a C4 Roadster and got a C7 Roadster! 
