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XTOOL KC501 Car Key Programmer Work with X100 
PAD3
Product 
Description:
Powerful in functions 
and fashionable in appearance, Xtool KC501 is a professional Key & chip 
programmer which can read & write keys, read key remote frequency and 
generate dealer keys. It support read and write MCU/EEPROM chips, read and write 
Mercedes Infrared keys. Moreover, it support PC connection which brings you 
better user experience.
KC501 is compatible 
with X100 PAD3 (X100 PAD Elite), for H6ELITE, H6EB, NITRO LT, NITRO XT, NITRO 
GT, AUTPPAD S, A80, A80 PRO, A80 PRO MASTER, H6 PRO, HU6 PRO MASTER, AUTOPROPAD 
ELITE will update to work together in 3 months.
 





 
| XTOOL KC501 | XTOOL KC100 | |
| Pic | 
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| Release Time | 2020 | 2017 | 
| Applicable key programmer | Xtool X100 PAD3 (X100 Elite), H6, H6 
Pro, i80, Auto pro pad | X100 PAD3, X100 PAD2,  EZ500, 
PS80, PS90, A80 etc | 
| Generate dealer keys | Yes, when working with Xtool X100 PAD3 | No | 
| Read and write Mercedes Infrared keys | Yes | No | 
| Detect key ID | Yes | No | 
| Detect key frequency | Yes | No | 
| Connect to PC (stand-alone) | Yes. Download PC software on official site. | No | 
| Volkswagen/Audi/Skoda 4th key programming | Yes | Yes | 
| Volkswagen/Audi/Skoda 5th key programming | Yes | Yes | 
| MQB key programming | Yes | Yes | 
| Volkswagen/Audi/Skoda 4th generation 96-bit online | Yes | Yes | 
| Volkswagen/Audi/Skoda 5th IMMO generation online | Yes | Yes | 
| MQB online key programming | Yes | Yes | 
| BMW CAS1-CAS3++ key programming | Yes | Yes | 
| BMW EWS2 EWS3 EWS4 key programming | Yes | Yes | 
| Land Rover after 2015 year smart key write start key | Yes | Yes | 
| Fiat Viaggio, 500, Palio and other models IMMO key programming | Yes | Yes | 
| Toyota/Lexus all smart keys lost key programming 
without dismantling, including 94, 98, 88, A8, A9, 39 simulation key generation. | Yes, work with KS-1 Smart Key Emulator | Yes, work with KS-1 Smart Key Emulator | 


1. DC Port: It provides 12V DC power 
supply. 
2. USB Port: It provides data communication and 5V DC 
power supply. (The Type B USB port provides data communication and power supply 
for our device, PC and KC501.) 
3. DB 26-Pin Port: It connects with the Mercedes Benz 
infrared cable, ECU cable, MCU cable, MC9S12 
cable. 
4. Cross Signal Pins: It holds the MCU board, MCU 
spare cable or DIY signal interface. (The Cross-shaped signal pin is used to 
place MCU board, MCU spare cable or DIY signal cable to read or write MCU and 
ECU chips.) 
5. Locker: It locks the EEPROM component transponder 
slot to ensure proper functioning. (It is used to place EEPROM chip or socket to 
read or write EEPROM data.) 
6. EEPROM Component Transponder Slot: It holds the 
EEPROM plug-in transponder or EEPROM socket. 
7. Status LED: It indicates the current operating 
status. 
8. IC Card Induction Area (It is used to read and 
write IC card data.) 
9. Display Screen (It is used to show remote 
frequency or transponder ID.) 
10. Remote Frequency Button (Press this button to 
show remote frequency in the display screen.) 
11. Transponder ID Button (Press this button to show 
transponder ID in the display screen.) 
12. Transponder Slot: It holds the transponder. (It 
is used to hold the transponder to read or write transponder 
data.) 
13. Vehicle Key Slot: It holds the vehicle key. (It 
is used to hold the vehicle key to read or write vehicle key 
data.) 
14. Remote Control Transponder Induction Area (It is 
used to read and write remote control transponder 
data.) 
15. Mercedes Infrared Key Slot: It holds the Mercedes 
infrared key. (It is used to hold Mercedes infrared key to read or write 
Mercedes vehicle key data.)
XTOOL KC501 Latest Update 
Information:
Add Infrared Key Function List (July 30th, 
2020)
Model         Years
A Series   2005-2013
B Series  2005-2014
C/CLK Series   
2006-2014
CLA Series    2013-2016
CL Series 2006-2013
CLS Series  2006-2013
E Series 2005-2015
G Series  2015
GL/CLG Series 
 2006-2014
GLC/GLK Series 
 2008-2015
M/ML Series  2006-2013
R Series  2006-2017
S Series  2006-2017
SLK/SLC Series 
 2006-2016
 

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