Problem: I tried adding Original Keyless Go key on W251 2009- with VVDI MB. Everything works except the Keyless function. The key itself is V03.
I wonder, is it the limitation with VVDI MB capabilities or I need another version of the key for example V08? Also, I didn’t put the battery into the key until the procedure with VVDI MB was over.
P.S. I read the password from the working key, online. Not all key lost procedures.
OEM key is second-hand, Car’s original key was 1 battery BGA and my OEM second-hand NEC key was 2 batteries.
Xhorse chief engineer replied:
If car original remote have two battery, use xhorse remote keyless will not work, this situation you must use OEM key to generate if you want full function. If car original key only one battery, xhorse remote support all function, if keyless not work, you need to check all process are correct, the file you use to generate is correct, all correct, you can change another key and another key position to generate.
In general:
First, the original remote with only one battery, the OEM key you use also should be only one battery. Second, you use a second-hand key, can’t be certain whether was damaged during the renewal process. Third, the original remote should use a V41 file to make the key.
Other User’s Experience for Sharing:
Which OEM keyless key you have brought?
There are 3 types of keyless keys.
Xhorse(vvdi), CGMB have 2 type in the market.
I’ve used the latest one from Xhorse,
update the key firmware in VVDI, change the correct frequency,
no matter your original key is 2 batteries or 1 bat, it works fine for me.
I’ve also used CGMB keyless key once, it works fine too on W204 W212 W251 etc,
but it lack of infrared function work with car,
the key infrared only for key programming.
Your problem is not related to VVDI MB,
it is related to the key.
Enjoy!
https://www.xhorse.co.uk/
