Homelink Problem - Mercedes Benz SLK Forum
 
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#1 Old 03-17-2011
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Homelink Problem

I have the Homelink in my '06 SLK350 and have it prgrammed for my garage door opener. I also have the same system in my other two vehicles so I"m familiar with programming them to work. The problem is that when I back out of the garage I have no problem lowering the garage door with the Homelink. But when I come back I cannot get the door to open. I've tried re-programming it and programming the other buttons but the same problem exists. If I use the remote control supplied with the door it works fine so I know it's something to do with the Homelink system. It's like the signal in not strong enough to get through the garage door/walls to activate the opener. Are you aware of anything I can do to get this working properly. Thanks for the help.
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#2 Old 03-17-2011
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Have you adjusted the wire hanging down from the garage door opener to another angle? or approach it from another angle?


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#3 Old 03-17-2011
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It's hanging straight down but I haven't tried it in any other angle or direction.
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#4 Old 03-17-2011
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try it and see. also, do you have a wireless router in the house? believe it or not, that could be interferring


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#5 Old 03-17-2011
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I can be sitting right outside the garage door and it will not activate the opener.
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#6 Old 03-17-2011
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I do have a wirelss router in the house but why would it work when the garage door is open but not whem it's closed???
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you might have answered this previously, but you said you reprogrammed the car. but did you reset all the buttons first?

If you are programming the integrated
remote control for the first time, press and
hold the two outer signal transmitter buttons
2 and 4 and release them only when
indicator lamp 1 begins to flash after
approximately 20 seconds (do not hold the
button for longer than 30 seconds).
This procedure erases any previous settings
for all three channels and initializes
the memory.


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#8 Old 03-17-2011
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Yes, I reset them all.
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Then that is a puzzler for sure. what brand garage door opener?


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Here are some items to check.
Limited range of your remote controls could be related to radio frequency interference that comes from something in your home or in the surrounding environment. Certain electrical devices can radiate interference; this could be almost anything that is plugged into an electrical outlet.

Please keep in mind that the device can be brand new, or can be an item that has been in use for quite a while. Also, the item may continue to function properly as far as you are able to tell. The only problem with the item may be that it has started to broadcast the interference, with no other symptoms noted.

Some devices are more likely to generate interference than others. This includes TV cable, cable amplifiers, surge protectors, fluorescent lights, battery charging devices (power tools, golf carts, etc.), anything that utilizes a timer (sprinkler systems, lights, alarm systems, etc.), and a myriad of others. If the problem seems sporadic, we can safely assume that the device responsible for the interference is only being operated during these times. Again, please keep in mind that the age of the device does not determine if it is capable of broadcasting unwanted interference. Any electrical device can be the source of the problem.

Multiple garage doors:
If you have two garage door units and one is working just fine, you will need to start by unplugging the good unit. This will help determine if the unit with no range starts to function properly. If the range comes back to the bad unit then you will need to replace the logic board on the unit that was unplugged as it is emitting an RF signal that is over powering the other garage door opener. If the range doesn not improve after the "good" unit has been unplugged, replace the batteries and try programming some additional remotes to determine if the existing remotes are the issue. If the extra remotes do not have any range then you would need to replace the receiver logic board in the "bad" unit.

Power Down test:
To isolate potential sources of interference, turn the circuit breaker off to the garage and plug the garage door opener into an extension cord from another room. If the range improves, then the interference is coming from a device in the garage. If no improvement is seen follow the same procedure, this time turning off the circuit breakers to your home, with the exception of the garage and test the remote controls. If improvement is noted, turn the circuit breakers back on, one by one, until the range problem resurfaces. This will allow you to narrow down what room the problem device is in. You will have to go from there to isolate it further, by unplugging and re-plugging the items in that room.

If you are unable to determine any source of interference, then the receiver logic board in the overhead unit will need to be replaced.


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Smarttop version 3.22
Previous - 02 SLK 320, 05 SLK 350
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#11 Old 03-17-2011
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It's a Chamberlain. I can raise and lower the garage door with the Homelink while the vehicle is sitting in the garage, I can lower the door after I back out, but once the vehicle is outside and the garage is closed it won't work.
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is garage door wood or metal?


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#13 Old 03-17-2011
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Metal. Seems to me it's a case of a weak signal.
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#14 Old 03-17-2011
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i agree. but it has worked ok in the past? all i know that whenever anything in the car acts strangely, the battery needs to be unhooked. my neighbor has a 350. could not get the cd player to work. pulled battery and it worked again. if you do pull the battery, u just have to reset the clock and the windows. let me know!


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#15 Old 03-17-2011
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It has never worked. I bought the car last September and I couldn't get it to work then either. The SLK has been parked for the winter so I never bothered with it. Spring is finally coming so now it's back on the front burner.
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#16 Old 03-17-2011
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Quote:
Originally Posted by jbanks15 View Post
i agree. but it has worked ok in the past? all i know that whenever anything in the car acts strangely, the battery needs to be unhooked. my neighbor has a 350. could not get the cd player to work. pulled battery and it worked again. if you do pull the battery, u just have to reset the clock and the windows. let me know!

But it's not a matter that the Homelink does not work. It works fine when the SLK is in the garage or sitting outside the garage when the door is open.
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i understand. the only time it does not work is from the outside. so it has worked in the past? if so, something in the car has changed, therefore the reset option. could not hurt.


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#18 Old 03-17-2011
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let's see what other members think


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#19 Old 03-17-2011
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Quote:
Originally Posted by jbanks15 View Post
i understand. the only time it does not work is from the outside. so it has worked in the past? if so, something in the car has changed, therefore the reset option. could not hurt.

NO! As I stated in one of my last posts, it has never work properly since I brought the SLK home last September.
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so it makes sense logically except on the 'send' portion with the receiver behind the 'metal'. i still vote for the car battery option. let's see what the other members think when they chime in.


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Llumar (Clear Bra) Paint Protective Film
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