C-Class (W203) 2001-2007, C160, C180, C200, C220, C230, C240, C270, C280, C300, C320, C230K, C350, Coupe

W203 CENTRAL LOCKING DOES NOT WORK FROM FAR !

Old May 4, 2014 | 09:19 PM
  #26  
Holmes5518's Avatar
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2016 C450
You have a short to ground. You need to look at a wiring diagram and check the wires for chafing to the body somewhere.
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Old May 5, 2014 | 07:52 AM
  #27  
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c230 2005 sport
Thanks for getting back to me. The problem was the ATA siren.I remove it and all is good now.
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Old Mar 2, 2015 | 03:39 PM
  #28  
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C240 w203
Originally Posted by kalim
Hi,

I have a 2001 model CDI 200 and my central locking does not work from far ! Ive changed the remote key batteries but still it opens only when i point it at a foots distance from the drivers door only ! Even the cars radio seems to have developed a poor radio signal ! can someone tell me what the problem is ?? i assume that the car's radio antena reception is weak. Can someone tell me where the antena goes after it leaves the head unit behind the dash ? Is there a power antena signal booster hidden somnewhere ?? This is driving me mad !!
I had the same problem, found a blown fuse in the fuse box in the trunk, repaced the 7.5A fuse, now all is A OK
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Old Mar 21, 2022 | 10:12 AM
  #29  
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W202
Hello all,

1st post , been doing a bunch of reading and research here. Bought a W203 a week ago and trying to resolve the central locking issue. Sedan car
IR works, new batteries in fobs. One new fob, one original - original IR does not work

#8 fuse OK, replaced anyway
FM radio signal fine, AM is so-so (but I guess thats normal?)
Car had a flat battery before I bought it, ex-owner replaced it (something here?)
Car has a tint - ex-owner says the RF still worked after tinting

I would greatly appreciate any help!
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Old Mar 21, 2022 | 11:50 PM
  #30  
S70Houston's Avatar
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2018 GLC300 4Matic; 2008 ML550 4Matic; 2004 C320
Originally Posted by bekkerh
Hello all, 1st post , been doing a bunch of reading and research here. Bought a W203 a week ago and trying to resolve the central locking issue. Sedan carIR works, new batteries in fobs. One new fob, one original - original IR does not work #8 fuse OK, replaced anywayFM radio signal fine, AM is so-so (but I guess thats normal?)Car had a flat battery before I bought it, ex-owner replaced it (something here?)Car has a tint - ex-owner says the RF still worked after tinting I would greatly appreciate any help!
No need to ask the same question in two separate posts. ​​​​
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Old Mar 22, 2022 | 08:50 AM
  #31  
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Apologies will revert to your post
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