Total Closure possible cause\cure

[television]

I just tried my own, the old one button flip out(IR) key and it will operate the locking at about 30 feet, however, if my hand is not steady then it won’t work. Perhaps the newer key of the OP has reduced IR power regarding the total closure for safety reasons.

Dec

Dont forget that even on your car you have RF locking as well

 

[bigasotonuk]

RF locking on a pre-face lift 202?
My handbook for my 43 (facelift 202) says that to operate the closure system you need to be very close to the receivers yet it will still operate from 30-40 ft away.

 

[Dec]

RF locking on a pre-face lift 202?

Just to clarify,
I have RF Scorpion fob and the IR flip out key, both fobs will lock/unlock at about 30ft, in any case the issue is not distance as close up is usually tried first. The issue is the failure of the total closure, it seems to affect older and newer cars.

My total closure is not working at the moment and I don’t expect it to function again until the hot summer weather returns because that’s usually the only time it will work properly.


Dec

 

[television]

RF locking on a pre-face lift 202?
My handbook for my 43 (facelift 202) says that to operate the closure system you need to be very close to the receivers yet it will still operate from 30-40 ft away.

Who is talking about a pre 1997 202, also once again the total closing on the car in question is IR

 

[bigasotonuk]

Who is talking about a pre 1997 202,

EEERRR you were in post 21

 

[television]

EEERRR you were in post 21

Am I supposed to know the year of every car that members have

 

[mrsdoyle]

Tried new batteries, still no good. I think these IR units must be pretty poor quality judging by the ammount of people with them not functioning/temperamental.

 

[Dec]

Most MBs have this feature, quite a few owners don’t realise that the have this feature because the always close the windows before the lock the car OR the don’t know about total closure because it’s not working most of the time. I never knew I had this feature until about a year after I bought the car.

Anyone know what action the dealers take or what is replace in order to remedy this fault and is it a recognised fault in WIS.


Dec

 

[mrsdoyle]

Maybe we should have a prize for the first person that definitely finds a fix for this stupid problem. Has anyone bought a brand new Mercedes and found this wasn’t working.

 

[television]

There are limits as to how far we can go with this. Yes there is a description in WIS on how it works, but this is all top secret as it is tied in with the EIS and locking systems, and therefore top secret.

As we all know when you press the key a led blinks for a few seconds and then goes out, but a IR beam is still being sent to the car, whether or not the code changes after the LED goes out I do not know, but the IR beam is still being transmitted.

One can only look at the IR beam through a receiver, and I will take a TV apart in the week and check the IR beam when the LED goes out

 

[bigasotonuk]

Am I supposed to know the year of every car that members have

Well yes when the year of the car is in the poster's details in the top right hand side and the actual post you quoted the poster said his was an early one with the flip out key. But point taken.
I have removed/refitted my IR sensors on my doors and i did find, on both my cars that one of the plugs to them was,nt pushed fully home, i also noticed that on one of them the pins of the IR sensor were a bit "cruddy" and appeared to have corrosion on the plug to it too.
The total closure/opening function, was erratic on one of my cars and the other would,nt work on one door, i simply refitted the IR sensors after sparaying a good dose of switch cleaner on the said connectors, no problems since.

 

[television]

Well yes when the year of the car is in the poster's details in the top right hand side and the actual post you quoted the poster said his was an early one with the flip out key. But point taken.

Are you having a bad day or something,, confusion can start when someone joins the thread with a different car and different system, even the total closing on your car is not the same as the OP car

 

[kth286]

I have a later generation 124 vehicle 1995, and on these it is usually the fault of the cenvenience module under the rear seat - it is a complex muti plug unit and the solder joins break.

 

[kth286]

I have a later generation 124 vehicle 1995, and on these it is usually the fault of the cenvenience module under the rear seat - it is a complex muti plug unit and the solder joins break.

So find the location of yours if there is a similar type, and see if there is moisture and crud inside the module.

 

[television]

I have a later generation 124 vehicle 1995, and on these it is usually the fault of the cenvenience module under the rear seat - it is a complex muti plug unit and the solder joins break.

So find the location of yours if there is a similar type, and see if there is moisture and crud inside the module.

No such thing on the post 2000 cars, they all work on an entirely different principle

 

[Alex Crow]

tried the total closure on a 1999 w210 today, worked at 30 feet easily.

 

[television]

tried the total closure on a 1999 w210 today, worked at 30 feet easily.

My SL and the newer cars only work a few inches away from the receiver in the handle and this is also stated in the handbook

 

[bigasotonuk]

It is also states in my handbook that the closure function only works within inches of the handle, but it works from 30+ ft away, as Alex says so does the 210, the 203 system is fundamentally no different to the 202 or 210, and using the "thru a digital camera lens trick" the IR signal pulses once to lock/unlock the vehicle with either the lock/unlock button held down continously the IR from the key pulses continously,

 

[television]

It is also states in my handbook that the closure function only works within inches of the handle, but it works from 30+ ft away, as Alex says so does the 210, the 203 system is fundamentally no different to the 202 or 210, and using the "thru a digital camera lens trick" the IR signal pulses once to lock/unlock the vehicle with either the lock/unlock button held down continously the IR from the key pulses continously,

You say the the 202/210 is fundamentally the same as a 203, yes it has 4 wheels and a steering wheel, and thats where it all ends

The key for a 203 does not send out one locking signal and then a continuous pulse, it sends out one continuous stream non stop, I have repaired many many keys.

The complete working for the 202 of the total closure can be found in WIS, you will find nothing for the later cars, that is new models after 2000, the EIS is far more sophisticated

 

[Alex Crow]

i will check various others as and when, got a brace of w211 in tomorrow. have an ML too, but these do not have IR at all iirc.