KEY FOB MESSAGE SAYING NO KEY DETECTED

Asked by Jun 13, 2016 at 09:06 PM about the 2007 Mercedes-Benz CL-Class CL550

Question type: Maintenance & Repair

CLS 550 CAN'T GET THE CAR TO START WITH
THE FOB OR KEYLESS REMOTE. .IVE TIRED TO
CHANGE THE KEY AND GOT NEW
BATTERIES..ANY SUGGESTIONS AS TO WHATS
WRONG?

6 Answers

10,645

Step 1. try your other(spare) KEY. If it fails the FOB needs reprogramming. Does it unlock the doors? NEXT, there is a separate battery for the starter located under the hood on the passenger side rear of the engine compartment. You need to have that battery tested or try jumpstarting the car from that battery. The battery in the trunk powers everything else in the vehicle except for the starter. Regards

5

If your vehicle is saying no key detected, if you have not changed the remote battery, replace the battery. If that does not work. You might have a issue with the keyless go system or your EIS ( electronic ignition switch) For sure try what Auto Centric recommends to check the starter battery but i dont think a starter battery will give you a No Key Detected message. If remote key battery does not work. I would try another remote key and if that does not work. Tow to your local Mercedes repair center.

I HAVE A DATE SET FOR THE MERCEDES TO SEE WHAT THE PROBLEM IS BUT THATS GOING TO COST $200 JUST TO TELL ME WHATS WRONG. i WAS TRYING TO SEE IF I COULD FIGURE IT OUT FIRST BEFORE I GOT TO THAT POINT. I HAVE TRIED TO UNHOOK THE BATTERY, CHECKING THE BATTERY..NOTHING.. ITS NO POWER COMING ON AND THE REMOTE WONT EVEN UNLOCK THE CAR. AND WHEN I CHANGED BATTERIES STILL NOTHING. IT WONT EVEN TURN OVER IN THE IGNITION. IT WILL JUST KEEP POPING UP NO KEY DETECTED. SO YOU THINK IT HAS SOMETHING TO DO WITH THE STARTER?

I have also tried giving it a jump changing keys and changing batteries after getting it tested. Had no problem one day and the next just wont even start up. cant even get my windows or radio to get power

10,645

It's the vehicle immobilizer anti theft system is NOT communicating with the RFID key. Without plugging into your vehicles CAN-BUS I can only guess a module has stopped functioning causing an issue on the K or L line effectively stopping communication. BUT based on '07 age I think a very through inspection of all cabling grounds / earth terminations clean tight not corroded etc..is a good effort before the Dealer. It's what they will do first. Clue," cant even get my windows or radio to get power "

OKAY THANK YOU SO MUCH..

Your Answer

Add photo

Related Questions

CL-Class

Looking for a Used CL-Class in your area?

CarGurus has 557 nationwide CL-Class listings starting at $4,786.

ZIP:

Search Mercedes-Benz CL-Class Questions

Mercedes-Benz CL-Class Experts

#1 John Leone
John Leone
Reputation 60
#1 Al Sevilla
Al Sevilla
Reputation 60
#3 Tom Demyan
Tom Demyan
Reputation 20
View All

Related Models For Sale

Used Mercedes-Benz CLS-Class
94 Great Deals out of 2,091 listings starting at $7,786
Used Mercedes-Benz S-Class
161 Great Deals out of 5,568 listings starting at $2,500
Used Mercedes-Benz C-Class
876 Great Deals out of 31,585 listings starting at $2,500
Used Mercedes-Benz E-Class
635 Great Deals out of 21,915 listings starting at $1,500
Used Mercedes-Benz SL-Class
90 Great Deals out of 3,195 listings starting at $1,500
Used BMW 7 Series
172 Great Deals out of 5,512 listings starting at $1,600
Used BMW 6 Series
106 Great Deals out of 3,090 listings starting at $7,495
Used Mercedes-Benz CLK-Class
52 Great Deals out of 1,299 listings starting at $2,990
Used Mercedes-Benz GL-Class
182 Great Deals out of 3,652 listings starting at $9,450
Used BMW 5 Series
581 Great Deals out of 16,858 listings starting at $1,500
Used Chevrolet Corvette
339 Great Deals out of 19,713 listings starting at $3,688
Used BMW 3 Series
1,610 Great Deals out of 38,816 listings starting at $1,250

Used Cars For Sale

2014 Mercedes-Benz CL-Class For Sale
17 listings starting at $49,995
2013 Mercedes-Benz CL-Class For Sale
26 listings starting at $42,885
2012 Mercedes-Benz CL-Class For Sale
34 listings starting at $34,995
2011 Mercedes-Benz CL-Class For Sale
3 Great Deals out of 22 listings starting at $30,508
2010 Mercedes-Benz CL-Class For Sale
49 listings starting at $24,999