typhoon43

I swear.. this car sometimes.
So my passenger side keyless go has been dead for like 5 months. It will not open unless I unlock another door, and then it will open. IT ALSO WILL NOT LOCK THE DOOR WITH THE HANDLE BUTON. Meh, whatever. I just use the remote when I let my GF into the car. Well as of 2 days ago, my driver's side front isn't responding. I have to use the remote to unlock it. Grrrr. Push to start still works, AND IF I PUSH THE BUTTON ON THE DRIVER SIDE HANDLE, IT WILL LOCK THE CAR.

WHAT...THE....?

It makes me think this may be a software issue vs. the door handle being bad. Why would the button work, but not the ability to open it with my keys in the pocket. I changed batteries in my remote a month ago, so it can't be that.

Should I disconnect the batteries possibly and see if that fixes it?
Thanks guys. Keyless go is my favorite damn feature on this car.

djrabbi

None of mine work anymore. I lived without it now. Sucks

MB984

Handles go bad all the time.

allenjdmb

agree. Door handles are known failure items on cars with KG.

3BNick

All of my door handles worked and then the drivers door quit. I replace the driver door handle and then the two rear doors quit working. Can't win with keyless go on this car.

turbo97se

I've been waiting for one of mine to go bad so I can dissect is to see what is going on. If one of you is willing to send me yours after replacing, I would like to figure out what is going on and maybe there is a cheap fix.

jnash

There are a suite of tests on SDS (star) diagnostics for KeylessGo. You should run through them all and find out whats going on.

dchl21

u just need to buy new handles

bstudey01

I had similar issues happening when one of my handles went bad, all kinds of electric gremlins!! Replaced the handle, took me 10 minutes to change, a viola completely fixed. I would just replace them it is extremely easy and they can be purchased for about $100 each of parts.com. DIY is on the forum somewhere too.

MAN55LE

https://mbworld.org/forums/w211-amg/...ement-diy.html

https://mbworld.org/forums/w211-amg/...-addition.html

urbamworm

Mine does the same thing. I can lock it with the button but not pop it open. And sometimes I have to hit button 2 or 3 times before it works. I think my passenger rear is the only good one left, all the rest are broke.

What sucks about my car is the handles are half white so I can't just get another used one or a new one and throw it in, I also have to get it painted.

turbo97se

+1

I must agree with this. The failure can occur for multiple reasons not just door handles going bad. The antenna/antenna connections can also go bad. Only using SDS can properly diagnose what is going on. The SDS would be able to tell you if it is detecting the button presses and can tell you if it can detect if the key is in range. It requires both to be present to successfully activate lock/unlock.

GregMB

I have replaced three handles in two years to keep everything working properly.

The handles are lousy.

Water gets in, and corrodes the switches. In the winter, water gets in and freezes....

I'm considering buying a case of handles so that I've always got replacements when I need one.


-G

typhoon43

you say that but I have bought TWO passenger side handles, one brand new from Mercedes...still doesn't work.

starbrite

KG is a lot more complex than most people realize and there are so many components that can go bad.

DAS Xentry (or Star) is the only way to diagnose it. Just take a look at the attached layout diagram. Lots of modules, antennas, motors, etc. (I deleted a few non essential pages so that it would meet upload size restriction)

BTW, as these cars get older, the start button wire starts to wear/chafe at the hole's sharp edges, where it exists the chrome shifter housing, eventually breaking. As it starts breaking through the wires, you'll get intermittent starts and or stalling, when shifting into gear.

See "Sticky", from the W211 forum, for repair. Great write up. : https://mbworld.org/forums/e-class-w...re-broken.html

Last year I lost ALL my KG functions, after disconnecting the main battery for about a half hr (I also had broken KG wire). Took it to the dealer yesterday and DAS Xentry showed no codes. But, for whatever reason, running the Quick Test scan brought the whole KG system back to life. Go figure!.