Notices
E-Class (W213) 2016 - 2023

Help Needed: Fob/Sensors not paired anymore cannot open door w/o pressing fob buttons

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Apr 19, 2019 | 12:53 PM
  #1  
mobster600's Avatar
Thread Starter
Senior Member
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 2017
Posts: 310
Likes: 57
e300
Help Needed: Fob/Sensors not paired anymore cannot open door w/o pressing fob buttons

The door handle unlock/lock sensors AND trunk foot sensors are not working with 1 keyfob. Engine starts, unlock/lock buttons work ONLY the sensors are not picking up the fob. The other fob WORKS 100%, so I know its only the fob NOT the car. I replaced the battery in the main fob last night, nothing.

How do I get the sensors to recognize the fob again? It seems like the fob and sensors are not recognizing eachother anymore.

Does the fob need to re-paired to the car?

HELP needed! Thanks!
Reply
Old Apr 19, 2019 | 02:43 PM
  #2  
ua549's Avatar
MBWorld Fanatic!
10 Year Member
Community Builder
Loved
Community Favorite
 
Joined: Nov 2014
Posts: 5,372
Likes: 1,103
.
Have you tried reactivating the Smart Key functions using the methods described in the Operators Guide?
The easiest one is to put the Smart Key in its console slot and start the car. That will activate all functions.
Smart Key functions can be disabled by a combination of key presses.
If it is stored in a pocket/purse with other stuff, inadvertent key presses can occur.
Reply
Old Apr 19, 2019 | 04:55 PM
  #3  
mobster600's Avatar
Thread Starter
Senior Member
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 2017
Posts: 310
Likes: 57
e300
Just tried, no luck
Reply
Old Apr 19, 2019 | 05:02 PM
  #4  
ua549's Avatar
MBWorld Fanatic!
10 Year Member
Community Builder
Loved
Community Favorite
 
Joined: Nov 2014
Posts: 5,372
Likes: 1,103
.
Time to visit your dealer.
Reply
Old Apr 20, 2019 | 08:23 AM
  #5  
bimmer2benz's Avatar
Newbie
 
Joined: Jan 2019
Posts: 9
Likes: 0
E450 Coupe
This happens to me from time to time. I thought that it might be the case I have the fob in or other outside influences. Now I'm thinking maybe it's an actual issue. Time to search!
Reply
Old Apr 21, 2019 | 10:45 PM
  #6  
rbrylaw's Avatar
MBWorld Fanatic!
 
Joined: Aug 2004
Posts: 3,447
Likes: 333
From: Tampa, FL
2019 E450 4Matic & 2018 E400 4Matic
Have you tried to replace the battery in the key fob?
Reply
Old May 26, 2019 | 09:18 PM
  #7  
mobster600's Avatar
Thread Starter
Senior Member
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 2017
Posts: 310
Likes: 57
e300
UPDATE- And not one I made an effort to do

Today I ran an errand and around 45 mins later I decided to wash my car. I go to get my sunglasses from inside the car AND..............whalaa.....the door touch entry unlocks!! Idk why I didn't use the fob to open my door as I know the touch entry hasn't worked for a couple months. Then I go to the rear to try the trunk foot open jesture that still doesn't work, lol. BUT the trunk button works lol......weird right?

The thing is, we have been getting alot of rain recently. Earlier in the day it came down hard for around 30 mins and I didnt drive my car until my errand....i cant think of anything else

I park outside BTW- just incase someone would wonder why rain would have anything to do with this lol
Reply
Old May 30, 2019 | 10:35 PM
  #8  
mobster600's Avatar
Thread Starter
Senior Member
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 2017
Posts: 310
Likes: 57
e300
I cannot make this up, the trunk foot open works now lol......idk what’s going on lol. I’m just happy everything works now
Reply
MB World Stories

The Best of Mercedes & AMG

story-0

6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

 Verdad Gallardo
story-1

Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

 Verdad Gallardo
story-2

Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

 Verdad Gallardo
story-3

8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

 Verdad Gallardo
story-4

Flawlessly Restored Mercedes 190E Evo II Heads to Auction

 Verdad Gallardo
story-5

Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

 Verdad Gallardo
story-6

Mercedes EQS Gets A Major Update: Everything You Need to Know

 Verdad Gallardo
story-7

5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

 Verdad Gallardo
story-8

Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

 Verdad Gallardo
story-9

10 Most Reliable Mercedes-Benz Models You Can Buy Used

 Verdad Gallardo

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -4. The time now is 05:55 PM.

story-0
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

Slideshow: Not every Mercedes design becomes timeless, some feel stuck in the era they came from.

By Verdad Gallardo | 2026-05-12 18:09:07


VIEW MORE
story-1
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

Slideshow: Yes, Mercedes built manual cars, and some of them are far more interesting than you'd expect.

By Verdad Gallardo | 2026-05-02 12:36:58


VIEW MORE
story-2
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.

By Verdad Gallardo | 2026-04-29 11:19:28


VIEW MORE
story-3
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

Slideshow: Before curves took over, Mercedes mastered the art of the straight line, and some of those shapes still look right today.

By Verdad Gallardo | 2026-04-25 12:05:49


VIEW MORE
story-4
Flawlessly Restored Mercedes 190E Evo II Heads to Auction

Slideshow: The 190E Evolution II shows how a homologation necessity became a six-figure collector icon.

By Verdad Gallardo | 2026-04-22 17:53:47


VIEW MORE
story-5
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

Slideshow: Mercedes is turning one of its core nameplates electric, and the details show just how serious this shift is.

By Verdad Gallardo | 2026-04-21 13:58:06


VIEW MORE
story-6
Mercedes EQS Gets A Major Update: Everything You Need to Know

Slideshow: Faster charging, longer range, and a controversial steer-by-wire system define the latest evolution of Mercedes-Benz EQS.

By Verdad Gallardo | 2026-04-15 10:35:34


VIEW MORE
story-7
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

Slideshow: These overlooked Mercedes-Benz models never got the spotlight, but they quietly delivered more than most remember.

By Verdad Gallardo | 2026-04-13 19:35:45


VIEW MORE
story-8
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

Slideshow: A well-used 1991 Mercedes-Benz 300D with more than one million miles is now looking for a new owner, and it still appears ready for more.

By Verdad Gallardo | 2026-04-10 10:05:15


VIEW MORE
story-9
10 Most Reliable Mercedes-Benz Models You Can Buy Used

Slideshow: From bulletproof sedans to surprisingly tough SUVs, these Mercedes models proved that the three-pointed star can go the distance.

By Verdad Gallardo | 2026-04-08 09:55:49


VIEW MORE