Hello everyone, I’m having issues with my shifter on my w220 2003 s55 AMG. I’m getting a “Driver authorization refused by N15/5” I replaced the ESM and got it “NCS coded” and Im honestly not sure if the shop did in fact try to code it since Im still not getting any success. I found a COMPUTER/ESM/EIS/KEY package from a 2003 CL55 amg. All part numbers match besides the EIS which is different. The part numbers are shown below. Do you guys think this package would work? I would like to fix the issue and also don’t mind the extra computer since I live in California and I would like one with tune and one without tune. Thank you guys!





My car EIS Number : 215 545 06 08

Donor car EIS Number: 220 545 09 08





My Car WDBNG74J93A356537

Donor car WDBPJ74J63A034769







Also quick note, I’ve been trying to diagnose this issue for some months now, and checked all fuses including fuse noses in trunk and footwell. It’s just one of those things that Im pretty much frustrated with and want to drive the car lol I live in Fontana CA in case you guys recommend any local shops as well

THANK YOU ALL!!

 

The EIS is vin coded to everything includingthe engine, I had to send my EIS, key, ECU and donor ECU to the mercedes swap shop to get them to match vins so you may have to do this as well but I can't say for certain but it worth mentioning if it will help!

 

Thank you! I’ll definitely keep that in mind since I do have to do emissions at the beginning of next year. I appreciate it 👍

 

yeah, he was super knowledgeable! I highly recommend him

 

yes

if you buy a complete set from a donor car and you just install, program the engine's module to your car's options (if needed) = you will be driving someone else's VIN

buying a new or virgin EIS or EIZ just requires adaption = you will be driving your vin

buying a used EIS or EIZ and have yours cloned to it by a local locksmith (requires sending yours) = you will be driving your VIN

 

@Joshhg93 being that your in So Cal, if your searching for the COMPUTER/ESM/EIS/KEY package locally - I know of someone parting out his 2003 S55 AMG. PM me if your interested with his contact info.
Incidentally, I had a similar issue with my shifter which prompted me to purchase a virgin rebuilt through Beckmann Technologies for considerably a lower price. Installed and coded by my local MBZ indy - parts & labor came to about $500 and change. I will add that Beckmann replaces the internal plastic lever with a custom machined aluminum and you do hear ever so slightly a metal tone upon engagement in gears.

 

I am guessing you meant you had it “SCN Coded?” Was the ESM new or was it removed from another vehicle? The ESM is part of the immobilizer system which is used on the W220/C215 in place of the Electronic Steering Lock (ESL). The ESM would need to be in the car when it was programmed and personalized to your vehicle. It will not allow this to occur if it has been personalized previously to another vehicle unless that information from the previous vehicle was removed from the ESM (which is not trivial). Has the replacement ESM functioned at all in your vehicle?

When you adapt a new one to your car, it downloads the SmartKey information from the EIS to the shifter numerically hashed, and if the key used in the EIS is recognized by the EIS, it requests authorization from the ESM in hashed format, and if that matches what is stored in the ESM, it is then sent to the ECU in hashed format to see if it matches one of the 8 “key tracks” that can be stored. If all three modules agree that they know the key ID or based ID, they will all send a Start Enable message to the EIS and then the EIS will unlock allowing you to rotate the key and start the vehicle. If one module does not recognize the key, I the EIS will prohibit turning the key in the EIS and will not send the Start Enable message to the ECU. If you bypassed the starter relay manually, the ECU will not activate the ignition or fuel pump therefore prohibiting start.

One thing to keep in mind is that the EIS stores a copy of the vehicles mileage. Changing out the EIS even if the ESM and ECU are changed as well will break the Drive Authorization System information the Instrument Cluster has learned from your vehicle, and will likely cause your odometer to display “———“ in place of the mileage which is displayed when the mileage is unknown or is suspect of tampering.