Antenna / Remote key fob issues
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2006 CLK500
Antenna / Remote key fob issues
2006 CLK500 convertible. 2 issues key fob no longer works and radio has weak reception. New batteries in key fob. Fuse #8 blown in trunk. Replaced and it blew immediately. In reading some of the forums on the key fob issues it would appear these are related. Anyone know where the antenna amplifier is on this car. Any help would be appreciated!
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From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
You will find both Coupe & Cab data here thanks to me being dumb.
https://mbworld.org/forums/clk-class...enna+amplifier
https://mbworld.org/forums/clk-class...enna+amplifier
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CLK 350
Registered to say I'm having the exact same problem.
My buddy was messing around and set off my alarm using the panic button - key stopped working after that unless it's pointed directly at the driver side door (found that solution in another post on here). Appears to be an issue with the RF receiver??
My buddy was messing around and set off my alarm using the panic button - key stopped working after that unless it's pointed directly at the driver side door (found that solution in another post on here). Appears to be an issue with the RF receiver??
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From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
Can be metallic tint, damaged wire into rear screen antenna, damaged rear screen, bad connection at sticky pad, bad earth or blown RF antenna amplifier. Damaged key or flat battery in key.
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CLK 350
The tint is the same that's been on the car since I've owned it (4 years), so I'm assuming it's not interference from that. And we can also rule out cutting of wires during an installation.
The key itself will work to unlock/lock the car at extremely close range on the driver's side. I've replaced the battery in the key. I have also tried my spare key and it is responding the same way, so I don't think it's a key issue.
Like pharris, my #8 fuse is blown and pops every time I try to install a new fuse, so I must have a short somewhere. Is it possible to damage the rear screen/wiring/antenna amplifier just by setting off the alarm? Is there a way for me to test where the short is coming from (I don't have any special equipment or tools, just an individual MB owner)?
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Fuse #8 also feed the Anti-Theft Alarm horn. Is suspect that it has died. using the panic button didn't in and of itself kill it, but it probably "revealed" the failure. The ATA unit is in the fender, behind the passenger front wheel. You'll have to remove the plastic shroud to get to it. For now, just unplug it to see if this stops blowing the fuse. If so, you;ll need to either do without the alarm or replace it. They tend to "deteriorate" from road salt and other environmental exposure.
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CLK 350
Do you guys think it's more likely to be the ATA horn unit(item #20), or the Alarm Control Unit (item #100 in the pic below)?
Rudeney, when you say I have to remove the plastic shroud, are you referring to the plastic cover in the wheel well?
Rudeney, when you say I have to remove the plastic shroud, are you referring to the plastic cover in the wheel well?
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It's probably the horn. It has a "backup" battery in it that can die and it may be what is causing the short. Yes, the the wheel well shroud need to be removed. You'll probably want to jack the car and remove the wheel to make this easier.
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CLK 350
Hey guys,
Just checking back in to report that your suggested fix worked like a charm. I disconnected the ATA horn in the front passenger wheel well and inserted a new fuse into the #8 slot. Fuse didn't blow and my key works from a distance now. Radio is sounding much better, and I can use the built-in garage door opener again.
The plastic shroud was a bit of a pain to maneuver in and out. All in all it was about a 1 - 1.5 hour job.
Thanks again!
Just checking back in to report that your suggested fix worked like a charm. I disconnected the ATA horn in the front passenger wheel well and inserted a new fuse into the #8 slot. Fuse didn't blow and my key works from a distance now. Radio is sounding much better, and I can use the built-in garage door opener again.
The plastic shroud was a bit of a pain to maneuver in and out. All in all it was about a 1 - 1.5 hour job.
Thanks again!
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Glad yo got it sorted out. If you want to replace the ATA horn, it's about $150 (assuming you are in the USA):
http://www.parts.com/parts/2008/Merc...component=HORN
http://www.parts.com/parts/2008/Merc...component=HORN
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Mercedes Benz CLK 270 CDI
). Also i sealed the connector to prevent moisture intrusion in the future
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From: Chicago
CLK 320 Cabriolet
Fuse #8 also feed the Anti-Theft Alarm horn. Is suspect that it has died. using the panic button didn't in and of itself kill it, but it probably "revealed" the failure. The ATA unit is in the fender, behind the passenger front wheel. You'll have to remove the plastic shroud to get to it. For now, just unplug it to see if this stops blowing the fuse. If so, you;ll need to either do without the alarm or replace it. They tend to "deteriorate" from road salt and other environmental exposure.
