XxGoppyxX

if my battery dies in my key how do i start the car? this happened to some old lady and i couldnt start her car causye her keys were dead...

ldangeli

I was told by the dealer, who knows if they are right or not, but they said that the key battery is only for locking and un-locking, and that it does not interfere with the starting of the car.

RCC CLK 320

wow I really never considered this happening till I read this post...

my buddy has a 5 series bmw, his key charges while it is in the ignition....thats a good idea....

think about this....you know how our keys we can slide off the long narrow key & other keys that maybe attached...that key controls the glove box you know....

what happens if the batt dies in the remote?....how does 1 get in their car?

secondly....does that long narrow key serve anymore purpose than the glove box?

Ric

nickv

The long narrow key opens the doors as well.

ldangeli

Yes, yes it does, that is why there is one lock on the Drivers door and one on the trunk..

XxGoppyxX

yea but once u get into the car with the key u cant start it.. i spoke to the dealer and they did say that it can still start the car but if the battery is totally dead, like the old womans..it wont start..i thought there was a way to start the car with the key that slides out..

FIXEDupW209

your dealer is right, the battery is only for unlocking and locking the doors, the metal key attached can be used as well. However a battery is not needed to start the car.

ldangeli

Make sure you clarify, the batter in the key is not needed. But the car battery is.. D'OH!

XxGoppyxX

key battery-->dead, car battery --->working

mmgrad

there is a very very simple solution to this question...

Just take the batteries out of the remote right now, and test it in the ignition... if the car starts, then no battery is needed. If the car doesn't start, then you know the outcome...

mbtech208

If the car's battery is okay, you can take the batteries out of the key and the car will still start. The key's batteries are only for remote functions. The ignition switch inductively powers up the key for starting when it is inserted in the ignition.

mmgrad

Ok Ok... save yourself the trouble...

After making the post, i decided to test it out myself... and, INDEED, the car starts with NO BATTERY...

I pulled the battery out of the remote completely, and inserted it in the ignition, and, the car started as normal....

I'm sure this settles the minds of many MB owners...

nickv

Danny to the rescue....daaan daaaan duuuuuuunnnnn!!

Adobe

Let's confuse the issue a bit more. I believe that if the battery in the key is dead and you use the metal Valet key to unlock the car, the security alarm will go off.

When you get the car open, put the key in the ignition and the alarm will stop.

BTW, isn't all this Info in the Owner's Manual?

ldangeli

And yes, the alarm will go off! Then you can't turn it off! Stupid battery!

Adobe

As I pointed out in my post above, when you open the door with the Valet key and the alarm goes off, simply put the electronic key in the ignition. The alarm will stop.

The metal key does not control the alarm system so that's why the alarm goes off when you open the door with the metal key. The metal key should not control the alarm system so the design is correct.

cobac

That other "little" infrared key they give you, that has no buttons or battery in it will start the car as well. I was told by my dealer this "slim" infrared key is good for putting in your wallet when you are going out for the night and dont need the big remote to tote around.

So I guess there is no need for the battery in the handset to start the car.

ldangeli

I don't have the "other" infared key. Bought my car new from the dealer.. CRAP!

mmgrad

that key was only came with earlier models... the later models did not come with it...

cost cutting?

XxGoppyxX

*******s

ldangeli

EXACTLY!!!

XxGoppyxX

haha