S-Class (W221) 2007-2013: S 320 CDI, S 350, S 450, S 500, S 550, S 420 CDI, S 600

Keyless Start

Old Oct 18, 2020 | 05:15 AM
  #1  
Paul Chapman's Avatar
Thread Starter
Newbie
 
Joined: Oct 2020
Posts: 5
Likes: 1
2008 W221 L
Question Keyless Start

Hi All,

Got a strange question. I have a 2008 W221 320L which has Keyless Go (lock and unlock from the exterior handles) but am unsure if it has Keyless Start also.

There were no Start Buttons supplied when purchased. So any ideas would be welcome.
Reply
Old Oct 18, 2020 | 09:05 AM
  #2  
Lexozz's Avatar
Newbie
 
Joined: Sep 2002
Posts: 4
Likes: 0
From: NY
2008 S550 AMG Sport
Keyless start

You need the button for it to be keyless start. The button is normally inserted into the ignition switch, you will have to insert the key and start it the old fashioned way into you purchase it.
Reply
Old Oct 18, 2020 | 11:07 AM
  #3  
BOTUS's Avatar
MBWorld Fanatic!
10 Year Member
Community Builder
Community Influencer
Liked
 
Joined: Aug 2014
Posts: 5,317
Likes: 1,673
S500
someone probably took it out to reduce likelyhood of theft, uninsurable in some countries.... additional immobilisers are a sensible precaution
Reply
Old Oct 18, 2020 | 03:02 PM
  #4  
Paul Chapman's Avatar
Thread Starter
Newbie
 
Joined: Oct 2020
Posts: 5
Likes: 1
2008 W221 L
Cheers for the reply folks. It's just when i look at say Ebay for the button it only lists S550 from my year and not my loser diesel. I also had a look on youtube and one video shows the key in the car and you can push the ignition barrel in without the button and his car started.

Obviously i do want a button, but don't want to waste anyone's time ordering one then returning the item if it doesn't work.
Reply
Old Oct 19, 2020 | 02:58 PM
  #5  
BOTUS's Avatar
MBWorld Fanatic!
10 Year Member
Community Builder
Community Influencer
Liked
 
Joined: Aug 2014
Posts: 5,317
Likes: 1,673
S500
….. the button pops out and you can exchange for the key (if the key has a flat battery / car having a moment etc.)

not sure if they are coded to the car. I guess they must be or does it just relay the car key info to the button.... I thought I read keyless go keys are different to stock ones.
Reply
Old Oct 19, 2020 | 03:05 PM
  #6  
WHPH28's Avatar
MBWorld Fanatic!
 
Joined: Nov 2014
Posts: 1,560
Likes: 207
From: Maryland
Depends on the weather
I have used the same button in different cars and it works because I wanted to know that a few years ago. There was no coding needed, only the key in the car. I may still have the button somewhere with some car parts. I'll see if I can find it.
Reply
Old Oct 19, 2020 | 06:56 PM
  #7  
Paul Chapman's Avatar
Thread Starter
Newbie
 
Joined: Oct 2020
Posts: 5
Likes: 1
2008 W221 L
Once again folks i really appreciate the responses. I have been on with the dealership, given them my VIN, and they have assured me that they have the button in stock and that it will function correctly within my vehicle, even though the cheapo buttons on Amazon and eBay say it won't. Going to pick it up tomorrow and will let you all know how it goes. Phewwwww....CHEERS!!!!
Reply
Old Oct 20, 2020 | 04:03 PM
  #8  
Paul Chapman's Avatar
Thread Starter
Newbie
 
Joined: Oct 2020
Posts: 5
Likes: 1
2008 W221 L
Got the button from MB Dealership and it works a treat, no hastle, no faffing, just plug and play!!!
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)
 

Thread Tools
Search this Thread
Rate This Thread
Rate This Thread:
You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -4. The time now is 02:07 AM.

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