W140 central locking not working
Discussion
Hi everyone, My dad liked the Merc 500se we went to look and we ended up buying it. There are a couple of bits that are not quite right.
One of these is the central locking which doesnt do anything. The garage we bought the car from said that he changed the battery and it made no difference. Now i have read that they use the rear view mirror to sense the signal but this is a pretty early w140 that has a manual mirror not an electric one so would the central locking have worked differently on this. Is there a way to "program" keys incase they have been sent out of sync.
Thanks for any ideas.
I forgot to say that the doors do lock and unlock by using the key in the door but not remotely, Thanks.
One of these is the central locking which doesnt do anything. The garage we bought the car from said that he changed the battery and it made no difference. Now i have read that they use the rear view mirror to sense the signal but this is a pretty early w140 that has a manual mirror not an electric one so would the central locking have worked differently on this. Is there a way to "program" keys incase they have been sent out of sync.
Thanks for any ideas.
I forgot to say that the doors do lock and unlock by using the key in the door but not remotely, Thanks.
Edited by BlueMR2 on Sunday 29th July 22:32
I bought a new key when I had my W140 as the key flip was worn and they sync'd it at the main dealer when I collected the key, so suggest giving them a call. Only took a minute they didn't charge me as I bought the new key through them so try and in your case you could try and blag it.
I tried what it said in the book but it didnt work.
Does anyone know what type of battery should be in the key and how many, it has 2 round ones in at the moment one on top of the other but it just doesnt look right.
Also the plastic? that covers the leds in the door handles is pretty old and not very transparent so i'm wondering if this is stopping the reciever getting a good signal. The passenger side front door handle stays out slightly unless you push it in, does anyone know what might cause this.
I wondered if the car didnt have soft close doors but i saw all the pipes in the boot when looking for something so after a few minutes the doors soft close now
. Just need to find out about the springs for the rear boot as it doesnt hold itself up very well on inclines and falls down. Anyone know how much new springs are, or if its best to adjust them, they are in the middle of 5 holes at the moment.
Thanks.
Does anyone know what type of battery should be in the key and how many, it has 2 round ones in at the moment one on top of the other but it just doesnt look right.
Also the plastic? that covers the leds in the door handles is pretty old and not very transparent so i'm wondering if this is stopping the reciever getting a good signal. The passenger side front door handle stays out slightly unless you push it in, does anyone know what might cause this.
I wondered if the car didnt have soft close doors but i saw all the pipes in the boot when looking for something so after a few minutes the doors soft close now
. Just need to find out about the springs for the rear boot as it doesnt hold itself up very well on inclines and falls down. Anyone know how much new springs are, or if its best to adjust them, they are in the middle of 5 holes at the moment.Thanks.
Sorry, i think the title is a little missleading. The central locking works, but only with the key in the door, but it will not remotely unlock the doors by pushing the button on the keyfob.
The leds in the door handle flash when un/locked but have no response from the remote key. However the material over the leds looks very old. It looks a little like i would imagine sand blasted perspex would, so i wonder if the reciever is having trouble, or the reciever could of course be broken. Is there a simple way to find out?
The leds in the door handle flash when un/locked but have no response from the remote key. However the material over the leds looks very old. It looks a little like i would imagine sand blasted perspex would, so i wonder if the reciever is having trouble, or the reciever could of course be broken. Is there a simple way to find out?
Edited by BlueMR2 on Wednesday 1st August 16:01
BlueMR2 said:
Sorry, i think the title is a little missleading. The central locking works, but only with the key in the door, but it will not remotly unlock the doors by pudhing the button ton the keyfob.
The leds in the door handle flash when un/locked but have no response from the remote key. However the material over the leds looks very old. It looks a little like i would imagine sand blasted perspex would, so i wonder if the reciever is having trouble, or the reciever could of course be broken. Is there a simple way to find out?
Ah i see, not really a simple way, you would have to plug the car into Star and check actual values. It could be the scratched cover, i have had it before, but sounds like you will be buying a new key.The leds in the door handle flash when un/locked but have no response from the remote key. However the material over the leds looks very old. It looks a little like i would imagine sand blasted perspex would, so i wonder if the reciever is having trouble, or the reciever could of course be broken. Is there a simple way to find out?
Ben
TBH if it costs lots of money my Dad will continue locking the door with the key as it still does the job of opening the doors.
Although i think the nearside front passenger door may need looking at as is doesn't return to its resting place when you have pulled it to open the door, it usually sticks out 5-10mm but will sit in the correct postition if you push it back in. That door has problems self closing sometimes as well though.
Although now soft close is working i have no idea how long it is since it last worked and the door strap clicks quite a bit on that door so it may be other things influencing the soft close system on that door.
Although i think the nearside front passenger door may need looking at as is doesn't return to its resting place when you have pulled it to open the door, it usually sticks out 5-10mm but will sit in the correct postition if you push it back in. That door has problems self closing sometimes as well though.
Although now soft close is working i have no idea how long it is since it last worked and the door strap clicks quite a bit on that door so it may be other things influencing the soft close system on that door.
Wheres the attraction in running a luxury car where half the toys dont work?
These cars are so cheap .... you should have bought on quality rather than purely price (as I did warn!)
Fail to understand how someone can put fuel i to run a V8 but cant afford another grand in the first place to buy a good 'un
Maybe i'm missing something I guess
These cars are so cheap .... you should have bought on quality rather than purely price (as I did warn!)
Fail to understand how someone can put fuel i to run a V8 but cant afford another grand in the first place to buy a good 'un
Maybe i'm missing something I guess
The car is 14 yrs old so it will never be perfect. It has a couple of small things that dont work.
A number of things i have read about are very common to fail on these cars and need work at some stage, how much you pay for the car and how well it is looked after has no bearing on if certain parts will fail. The doors soft close system wont fail because you haven't had an engine oil change for a while.
You will find it very hard to find a car that has had EVERYTHING that it needs doing done to it as preventitive maintenence. The ones that do are generally the ones owned by people with alot of money to whom a £3k service 2 times a year is pocket change to them but dont want the car to fail when they will use it.
Quite frankly most owners will not change bushes every 60k miles and wont replace alot of parts due to age until they break, you will find very few that have, so if you cant afford £60k for a new one, or dont want a current new model that is put together to a lower standard than the older models and will no doubt have problems once its 10+ years old then you find the best one you can find for the money.
A number of things i have read about are very common to fail on these cars and need work at some stage, how much you pay for the car and how well it is looked after has no bearing on if certain parts will fail. The doors soft close system wont fail because you haven't had an engine oil change for a while.
You will find it very hard to find a car that has had EVERYTHING that it needs doing done to it as preventitive maintenence. The ones that do are generally the ones owned by people with alot of money to whom a £3k service 2 times a year is pocket change to them but dont want the car to fail when they will use it.
Quite frankly most owners will not change bushes every 60k miles and wont replace alot of parts due to age until they break, you will find very few that have, so if you cant afford £60k for a new one, or dont want a current new model that is put together to a lower standard than the older models and will no doubt have problems once its 10+ years old then you find the best one you can find for the money.
You will find even the small things are expensive to fix, and when you sell the car, people will expect everything to work. I have a 140 in at the moment with the one touch windows not working, they open but just not with one touch, its on 170000 miles and is a rusty hulk, but they still expect it to work, so they are forking out several hundred pounds on a new control unit, one touch windows is hardly essential.
In my opinion, if you cant afford to buy a good one, then you cant afford to repair a crap one.
Ben
In my opinion, if you cant afford to buy a good one, then you cant afford to repair a crap one.
Ben
that drove into the back of it this morning.bloodyniceben said:
You will find even the small things are expensive to fix, and when you sell the car, people will expect everything to work. I have a 140 in at the moment with the one touch windows not working, they open but just not with one touch, its on 170000 miles and is a rusty hulk, but they still expect it to work, so they are forking out several hundred pounds on a new control unit, one touch windows is hardly essential.
In my opinion, if you cant afford to buy a good one, then you cant afford to repair a crap one.
Ben
Have to agree.... I'm no snob, but buying such a car and 'running it into the ground' is what sends these cars on the downwood 'council' spiralIn my opinion, if you cant afford to buy a good one, then you cant afford to repair a crap one.
Ben
Witness the W126/C126 models...... these now fall into 2 camps
Lovely mint cars and old sheds, with prices divided accordingly.... soon the sheds will be off the road and prices of good ones will increase
One/some of the Merc models, i believe the 140, have central locking that works in two ways. Primarily it uses a radio signal (that might be the one in the interior mirror?), and the infra red (sensor in the door) is a backup. The Infra red is really short range but the radio is longer range.
Nice one for ignoring all the moaners in this thread and running a 140! Certainly an interesting car to run.
Check www.mercedesshop.com if you want further technical info/help, infinitely, stratospherically better than anything you'll find on here
Nice one for ignoring all the moaners in this thread and running a 140! Certainly an interesting car to run.
Check www.mercedesshop.com if you want further technical info/help, infinitely, stratospherically better than anything you'll find on here
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