Frustrated: 2003 ML500 Brake light BEEP BEEP
08-08-2015, 06:26 PM
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Frustrated: 2003 ML500 Brake light BEEP BEEP
I have been having some or the other problem with this car but this morning, I removed the Head Unit to see if I can replace it with an after market unit. Anyway, I promptly concluded I can't and put everything back.
However, when I now try to drive the car, it gives me a "Brake" light red colored in the instrument panel and constantly beeps when I try to drive it. Is it a brake switch issue or something to do with putting the head unit back properly? Is this simply a coincidence? Please help!!
Forgot add that the HU was simply not put back. I had one of those "ISimple" devices hooked up to the back of the HU to give me a 3.5mm audio out to my MP3 player. That works fine and that was the only mod done. Did that screw this up?
However, when I now try to drive the car, it gives me a "Brake" light red colored in the instrument panel and constantly beeps when I try to drive it. Is it a brake switch issue or something to do with putting the head unit back properly? Is this simply a coincidence? Please help!!
Forgot add that the HU was simply not put back. I had one of those "ISimple" devices hooked up to the back of the HU to give me a 3.5mm audio out to my MP3 player. That works fine and that was the only mod done. Did that screw this up?
Last edited by NickPinLA; 08-08-2015 at 07:25 PM.
08-09-2015, 01:02 AM
#2
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It is a coincidence. Check the brake fluid level. If the level is fine, make sure the floater is not stuck.
Why have you concluded , that you cant replace the Head Unit with a aftermarket one?
Why have you concluded , that you cant replace the Head Unit with a aftermarket one?
08-09-2015, 12:03 PM
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Art, the installer for the HU told me that the speaker output was controlled by the fiber optic cable. When he disconnected the fiber optic cable, the sound stopped coming out from the speakers.
Last edited by NickPinLA; 08-09-2015 at 02:40 PM.
08-09-2015, 02:59 PM
#4
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Open the brake fluid container. Start the car & press the floater with your finger. Dose the light go off? Check the electrical connector for shorts.
The amp is controlled by FO. The speakers use normal, old fashioned cables. Speakers have nothing to do with FO. When the installer pulled the FO, he "switched off the signal" to the amp, hence no sound. I have aftermarket unit installed, so do thousands of ML owners.
The amp is controlled by FO. The speakers use normal, old fashioned cables. Speakers have nothing to do with FO. When the installer pulled the FO, he "switched off the signal" to the amp, hence no sound. I have aftermarket unit installed, so do thousands of ML owners.
08-09-2015, 03:57 PM
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Open the brake fluid container. Start the car & press the floater with your finger. Dose the light go off? Check the electrical connector for shorts.
The amp is controlled by FO. The speakers use normal, old fashioned cables. Speakers have nothing to do with FO. When the installer pulled the FO, he "switched off the signal" to the amp, hence no sound. I have aftermarket unit installed, so do thousands of ML owners.
The amp is controlled by FO. The speakers use normal, old fashioned cables. Speakers have nothing to do with FO. When the installer pulled the FO, he "switched off the signal" to the amp, hence no sound. I have aftermarket unit installed, so do thousands of ML owners.
08-10-2015, 01:43 AM
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I thought you said you checked the floater.....
The floater is under reservoir cap. It is attached to the cap. It will go up/down when you move it. The light will be on if the electrical connector is unplugged.
The floater is under reservoir cap. It is attached to the cap. It will go up/down when you move it. The light will be on if the electrical connector is unplugged.
08-10-2015, 11:23 AM
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Thanks for your help Art. Yeah I did check the floater and I was able to push it in slightly. I can't tell if it's stuck out not since I see some movement. I asked again since I wanted to make sure. Also I thought if I removed the two electrical connectors then the light would go off.
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08-12-2015, 08:39 AM
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2002 ML320, 2003 A160
Art, the reason Nick's brake light is going off is because he's driving with his parking brake on, or at least his ML thinks it's on.
Of course, he could have found this out by referring to his owner's manual.
Of course, he could have found this out by referring to his owner's manual.
Last edited by DrX; 08-12-2015 at 08:53 AM.
08-12-2015, 10:12 AM
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Actually it had to do with the installer not snapping something back in place below the instrument panel. It's all good now.
Thanks Art for being so helpful.
Last edited by NickPinLA; 08-12-2015 at 10:15 AM.
08-12-2015, 11:57 AM
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08-12-2015, 07:15 PM
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2002 ML320, 2003 A160
Yellow light with beep is brake pad warning. Red light with beep is parking brake warning.
08-12-2015, 09:18 PM
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