KEYLESS GO NOT FUNCTION

Asked by Mar 25, 2016 at 05:53 AM about the 2012 Mercedes-Benz M-Class ML 350 BlueTEC

Question type: Maintenance & Repair

Hi, I have a Mercedes Benz W166 ML350 BLUETEC 2012 year, the keyless go suddenly are not function at all, cant push button start, cant lock / unlock door by handle. I had scan with Xentry DIAGNOSTIC,but it cannot be read the data out from the keyless go control unit N69/5, it just show me the red word ' The control unit does not respond to the query from Xentry Diagnostics.' and below the red word ' Possible cause and remedies -The power supply of the control unit is not ok -The control unit is not standard equipment and for this reason it may not be installed. '

I also had check the fuse infront beside the engine and rear under the seat, that all are no problem.

Can you please help me how to fix it?

3 Answers

345

Sound like u have an aftermarket key fob I would love to see a pic of it if u have an aftermarket key fob the control unit and fuse are usually under steering wheel or the knee kick panel I only say aftermarket because to my knowledge that year mb didn't have remote start ....

57,355

How about the battery in the remote?

I have exactly the same problem. I want to replace the control module but do not know where it is located?? Under the rear seat or in the trunk under the spare??

Your Answer

Add photo

Related Questions

M-Class

Looking for a Used M-Class in your area?

CarGurus has 5,234 nationwide M-Class listings starting at $2,980.

ZIP:

Search Mercedes-Benz M-Class Questions

Mercedes-Benz M-Class Experts

#1 jihadghazali
jihadghazali
Reputation 1,100
#2 wellness
wellness
Reputation 860
#3 snowseal19
snowseal19
Reputation 570
View All

Related Models For Sale

Used Mercedes-Benz GL-Class
231 Great Deals out of 4,360 listings starting at $8,777
Used BMW X5
401 Great Deals out of 15,915 listings starting at $1,300
Used Mercedes-Benz E-Class
478 Great Deals out of 22,745 listings starting at $1,600
Used Mercedes-Benz GLK-Class
134 Great Deals out of 3,142 listings starting at $9,058
Used Mercedes-Benz C-Class
573 Great Deals out of 30,890 listings starting at $1,500
Used Mercedes-Benz S-Class
149 Great Deals out of 6,407 listings starting at $2,300
Used Porsche Cayenne
106 Great Deals out of 5,538 listings starting at $3,999
Used Lexus RX 350
466 Great Deals out of 20,281 listings starting at $5,599
Used Mercedes-Benz G-Class
12 Great Deals out of 1,050 listings starting at $21,000
Used Audi Q7
82 Great Deals out of 3,705 listings starting at $7,500
Used BMW 5 Series
529 Great Deals out of 14,769 listings starting at $1,375
Used BMW X3
385 Great Deals out of 13,467 listings starting at $2,837
Used Acura MDX
238 Great Deals out of 17,700 listings starting at $1,495
Used Jeep Grand Cherokee
831 Great Deals out of 70,215 listings starting at $700

Used Cars For Sale

2012 Mercedes-Benz M-Class ML 350 BlueTEC For Sale
6 Great Deals out of 82 listings starting at $19,975