Mercedes C220 w203 remote not working. Antenna amplifier fuse blowing. Fault finding and repair. 

hben red Thank you! I will do my best to continue...

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😅 Nice that you got it sorted! 👍👍👍

Agree! Thank you for watching and for your comment!

Billy Yoder Thank you for watching!

Thanks! 👍👍👍

Possibly... but seemed like the issue was that the little unit tapped into the wire got faulty... Surely that wouldn't have been left like that from day one on installation... Thank you for watching and for your comment! 😊 👍👍👍

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😊 Thanks!

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g8wqj Thanks... I checked afterwards... I also put it the description... Thank you for watching!

g8wqj que

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Thanks! For watching and for your comment!

That's great! Thank you for watching and for your comment!

@@LMAutoRepairs I have just purchased a clk320 2004 with a very poor radio reception and lousy key unlocking/locking problem...you are my hero...changed the F8 fuse...works great now Thank you so much.

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​@@TheGrizzlybiffo hello, any problem cropped up since your last reply?. Can incidences of main 12V battery draining off?. I have the same problem of the fuse kept blowing off. You put in a 20 or 25 amp fuse. I suspect my case of moisture shorting behind the PCB or maybe even some insects. Will send to a shop to have a look. Not willing to risk myself screwing up even more if I put my hands it. 😂😂😂😂. I will save this link.

Yes... could be the issue! Thank you for watching and for your comment!

LM Auto Repairs Hmmm... it worked 10 times. Now after i returned to the car after 15 minutes, it refuses to work. Maybe the receiver is faulty? The keys have been repaired today and they said that there must be something faulty on the car... maybe receiver. But why does it work sometimes, and sometimes not? The fuse is still OK.

@@olectrix it can be connection to the antenna in the glass... 🤔

mubashar razzaq Thank you for watching, and for the nice comment!

😊 Thanks! 👍👍👍

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Thank you for watching and for your comment!

Not quite.... if the issue is not on the electronics.... will not make a difference... The fault will reveal it self before doing any harm to the modules... Feed a module with a 10 amp fuse, or with a 100 amp fuse makes no difference during normal operations... I am not going to be here explaining when you can use this method or why... Mr. Google has plenty or info... If you know what you are doing, you know when and how you can use this method to find faults... Thank you for watching and for your comment.

@@LMAutoRepairs Look, it's great that you got this repair done with your ingenuity. But when a fuse burns, that tells me that there is too much current going thought the circuit, maybe from a short to ground or other damage to the circuit. I personally would connect my mercedes code reader and start with reading out the codes, very likely it is going to hint directly at the circuit that is shorted and you can look it up in Mercedes WIS. Then continue with a multimeter. When you bridge the fuse or connect a non matching fuse (100 instead of 10), the current and heat that popped the fuse will move through the circuit and burn out the weakest component, what ever that might be. Now you say, just do this for 1 second. What kind of advice is this?? I just watched a different video of a guy do this and he burned out some connector pins inside of his ESP module. Not very smart to apply high heat and current to the internals of your $1000 mercedes electronic modules, is it? Saying, it's fine for 1 or 2 seconds, that's bad advice. I understand it worked for you, might work for somebody else, you did a good job explaining your video, but in the end, I would never do this myself or advice somebody to use the wrong fuses in their fusebox.

@@criticaljim1 I agree to disagree... That said, I agree with some of your points... I think that there is some misconceptions here however... But, will leave that for another occasion...👍

criticaljim1 Shut the F#@k Up!! this help me fix my car in less than 10 min after dealer wanted me to spend more than 1k on a very simple fix!!!! make your own videos if you do not like them mate!!! simple as that.. LM Auto Repairs keep up the good work friend!!

Thanks! 👍👍👍

😊 Thank you for watching and for your comment! 👍👍👍

Thanks! 👍👍👍

Hi Bad antenna or the battery on the key bob... For more visit: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-5Jl_poF35_A.html Myself or a fellow member, will be more than happy to help! Thank you for watching!

Thanks! 👍

No need to apologise... I totally get what you said... Thanks! 👍👍👍

simao fao No worries... Thank you for watching!

Nz Mkl Thanks...

Thanks! 👍👍👍

This was nothing to do with the siren... 🤷‍♂️

😊 Thank you!

Remember was purely for testing...😉 The box was some sort of tracking device... 👍👍👍

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Thank you!

😊 Probably! 👍👍👍

I would unplug one at the time, and would try a new fuse... if stops blowing, you know which module is causing the issue... 👍👍👍

If you have a good fuse and good working key. The receiver's (door look has a receiver embedded where it catches signal) contacts on the back might have week solder. You have to remove and reapply solder

No... no other issues... Thank you for watching and for your comment!

Paul Mayou Lol Thank you for watching Paul!

😊 Thank you! For watching and for your comment!

Actually don't think it is... That was connected to the small module, which was actually a kind of a tracker device... I doubt mercedes would use double sided tape to secure something like this... Thank you for watching!

I do have them now... didn't at the time... As explained, was a quick test... I would never ever leave a fuse like that! Hope that came across clear on the video..

@@LMAutoRepairs Thanks for the answer. I just wondered do you use a automatic circuit breakers... Appreciate all of your work. Have a nice day from Bulgaria.

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😊 Thanks! 👍👍👍

Some tints can affect indeed... Check and go from there... Thank you for watching!

This happen to me to as soon as I put tints on my c230 my car lock stopped working

Any updates?

@@AyoScreen_ any updates?

Check the car antenna in ok... Usually in the rear screen... Thank you for watching!

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Mambre Khachatryan Hi Yes, you can test the remote with one of those testers... That's how I knew that the remote was transmitting... Thank you for watching!

Thanks for posting the video. Can you recommend a tester? Which one to buy?

Mambre Khachatryan Hi To be fair, they are all very similar... If you spend a bit more, you can get one capable of more frequencies and other stuff... All depends on your budget... Something like this for example... www.ebay.co.uk/itm/like/302459844082?chn=ps&dispItem=1&adgroupid=43868896259&rlsatarget=pla-327045194341&abcId=1128936&adtype=pla&merchantid=6995734&poi=&googleloc=9046212&device=m&campaignid=856327663&crdt=0&ul_ref=http%253A%252F%252Frover.ebay.com%252Frover%252F1%252F710-134428-41853-0%252F2%253Fmpre%253Dhttp%25253A%25252F%25252Fwww.ebay.co.uk%25252Fitm%25252Flike%25252F302459844082%25253Fchn%25253Dps%252526dispItem%25253D1%2526itemid%253D302459844082%2526targetid%253D327045194341%2526device%253Dm%2526adtype%253Dpla%2526googleloc%253D9046212%2526poi%253D%2526campaignid%253D856327663%2526adgroupid%253D43868896259%2526rlsatarget%253Dpla-327045194341%2526abcId%253D1128936%2526merchantid%253D6995734%2526gclid%253DCjwKCAjwu7LOBRBZEiwAQtfbGNFXfhhOeh76UBnHQHo4sqvfIoyoY4Qi_E6K1zcMDudIKCv782zQlhoCc9MQAvD_BwE%2526srcrot%253D710-134428-41853-0%2526rvr_id%253D1321734896461

In the key fob right? You will need to swap the main transponder/chip to the replacement key... That way no programming should be required. Thank you for watching!

Hi Yes... was a tracker device... Thank you for watching and for your comment!

Don't think I have even tried or checked such thing... 👍👍👍

Hi Was some kind on an aftermarket tracker... Thank you for watching!

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There is plenty out there... all depends how "deep" you want to go... and how much you are willing to spend... Thank you for watching!

You might have something else shorted somewhere... Only testing will tell... 👍👍👍

@@LMAutoRepairs ok thank you. Probably a short circuit somewhere cos the rear heater is also not functioning. 🙏

If I recall correctly, and as per the video, on the boot, left hand side... 👍👍👍

Same issue in my 2001 S600, how did you solve it eventually?

Amplifier module, window antenna Alarm signal horn (H3) ATA [EDW] inclination sensor

Red light on the key and the key battery is new*

@@AnthHolgado Hi You can still have a bad antenna... Have it checked... Thank you for watching!

@Anass Elharraq In the rear glass... if I am not mistaken... Thank you for watching!

@Anass Elharraq I have some this problem with my car, Did you find the solution?

@@LMAutoRepairs I changed to an used one antenna bought on ebay, same problem

Car antenna most likely... Thank you for watching!

@@LMAutoRepairs Antenna has been changed and still not working..

@@AnthHolgado Have you actually scanned the car, and looked at some live data?

@@LMAutoRepairs What do you mean by scan the car ?

@@AnthHolgado Scan it with a diagnostics machine...

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You have antenna issues

i-Bird Nop.... I put in the description.... was a aftermarket GPS tracker...

I believe it was something like that... Thank you for watching!

If this car is stolen the thief will bring it back looking at the numerous issues it has ... no need for a tracker

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@@LMAutoRepairs btw i had the same issue and it was the siren by the passenger wheel. Unplugged the connector and its all good now. Fuse #8 doesn't blow and "convenience" locking works (key) ... car is all set to be stolen 😂

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Hi the fuse is a normal AT0 fuse, comom known as "Blade Fuse". They pretty inexpensive, you can find them on ebay for something like £2 for 20! Hope that helps! Thank you for watching!

Thanks for replying. It shows me different amps, which one is for the door lock in c220 coupe? thanks

40 or 14 amps :D :D

Nika Kerelashvili Not sure from the top of my head... Don't you have the card with the fuses and relays assignment, or the car manual? I can have a look, but I working at the moment...

ok dont worry i'll see if i find a manual in the internet, i own the same car than you. thank you brother

I am not a wizard... It can be many different things! Check the basics, fuses etc... Scan the car and go from there... 👍👍👍

Thank you! i will do

Is on the video... in this case... yours might be something different... 👍👍👍

Indeed it was... 👍👍👍

Kind of... lol Yes... that module which was connected to the fuse responsible for the central locking, was shorted, blowing the fuse... Thank you for watching!

Thank you 🤝🤝

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Devarsirat das Hi Autodata.. Thank you for watching!

You should have watched the video till the end...😉

@@LMAutoRepairs yeah but in some causes on mb w203 it's a antenna problem trust me😉😉

@@klevisismaili7326 I believe... 👍

NO... Something is obviously loading the circuit making the 7.5 amps blowing... probably a short circuit somewhere... You should use a higher amp only for diagnosis purposes... Hope that helps. Thank you for watching!

Thanks

Big mistake hope you have a fire extinguisher handy

Was not my car... But thanks!... 👍👍👍

i-Bird Hi Lol... probably the quickest comment I ever had! 😉 Thank you for watching!

Fault finding and repair/how much

Hi thanks again for the video, that unit is a tracker and it's backup battery.

In this case yes... 👍👍👍

Mahdi Petric Start with the basics... Is the remote battery ok? Is the remote transmitting? Scan the car and look a some live data can also help...

YES..BATTERIES CHANGED IS TRANSMITTING SIGNAL..JUST THE CAR WONT LOCK...FUSE BOX CHECKED NO FUSE BLOWN...ONLY WAY IS THE PUT COMPUTER ON?

Mahdi Petric It is probably the next best way to diagnose the problem... otherwise will be only guessing...

M P I have same problem did u fix it and what did u have to do thanks

Check everything else... key fob battery is good? Next will be checking that the key is actually transmitting... Thank you for watching!

It works but you have to be 2’ away from the car. I will figure it out.

I figure it out lol

monkey Rotary what did you do?

ALi W Hi Not sure on the W210... but surely somewhere in the boot... Thank you for watching!

Thanks for work done

Is the cluster completely dead, or just the speed gauge? 👍👍👍

@@LMAutoRepairs The rpm still work sir

Yes for the gazoil level and the engine temperature

In that case your issue might not be a fuse... Scan the car and test the cluster... The speed is probably sent through CAN from by the ABS unit... 👍👍👍

@@LMAutoRepairs you're right, the dashboard shows me also a yellow abs warning

I know... but for a quick check it does the job...😋 👍👍👍

Erik Baca Even if that was the only thing you learned, at least you watched the video! Thank you for that! 👍

@@LMAutoRepairs grande Luis! Pessoas ignorantes e que provavelmente nao percebem a ponta de um corno do assunto. Continua com o bom trabalho.

@@thlf 😂😋 Obrigado!