Why is my Mercedes Benz battery not working?
If you pressed the unlock button on the door handle the instrument cluster would state “Key not recognized”. The next problem that this car developed was the battery dying when the car was parked for an extended period of time or parked overnight. It was confirmed that no lights were left on.
Why is my rear battery light not working?
With your rear battery (which powers your car’s electronics, but is not used for starting) at 50% despite your alternator putting out the proper voltage, I cannot escape the conclusion that the rear battery is failing. Ok, so I had the rear battery replaced and drove about 8 miles to work and no battery light.
How can I tell if my Mercedes medic battery is draining?
Check that the glove box light does not stay on when the car is parked. The easiest way to check this is to open the glove box after the car is parked for a couple of hours. Place your hand near the glove box light bulb and feel it if it is warm. Be careful not to burn your hand. Aftermarket alarm system.
What should I do if my car lights are not working?
Do not disconnect the main vehicle battery or remove the OnStar fuse with the ignition key in any position other than OFF. Retained accessory power (RAP) should be allowed to time out or be disabled (simply opening the driver door should disable RAP) before disconnecting power.
If you pressed the unlock button on the door handle the instrument cluster would state “Key not recognized”. The next problem that this car developed was the battery dying when the car was parked for an extended period of time or parked overnight. It was confirmed that no lights were left on.
Why are the lights on my dashboard not working?
Adjust the dial or knob to see if that fixes the problem. If the switch was accidentally bumped, your dashboard lights might have been turned off. Flip the switch or turn the dial or knob up and see if the lights on your dash come on or get brighter. If adjusting the switch doesn’t work, you may have a blown fuse or bad lightbulb.
When do the warning lights come on after a battery change?
Warning lights come on after battery replacement volkswag… After changing the battery, all was going well. The next day when I started my car, almost all of the warning lights came on (for ex: ECP, ABS, brake, engine, steering). The speedometer didn’t work either.
With your rear battery (which powers your car’s electronics, but is not used for starting) at 50% despite your alternator putting out the proper voltage, I cannot escape the conclusion that the rear battery is failing. Ok, so I had the rear battery replaced and drove about 8 miles to work and no battery light.
What should I do if my Mercedes battery dies?
If the battery should die on your Mercedes-Benz, the airbag light on the instrument panel may stay on after you hook up a new battery. The oil light indicator also may stay on, and the radio may not work until you reset its code. You can reset the airbag and oil lights with a service-light reset tool…
Are there any electrical problems with a Mercedes Benz?
Recently we have been working on a Mercedes-Benz with some major and unexplainable electrical issues. The problem started with the Keyless Go feature. The key would unlock the car via keyfob and start it by inserting the key in the ignition. But Keyless Go stopped working.
What happens when you turn off the lights on a Mercedes?
While the instrument cluster lights would turn off once you removed the key, the engine would still run. The car would even still respond to the gas pedal input. You may find it hard to believe but here is a video showing Mercedes that wouldn’t shut off.
How does keyless go work on a Mercedes Benz?
Mercedes-Benz Star Expert Pedro demonstrates how you can use your Smart Key and the KEYLESS-GO system to start your car, lock and unlock it, close the windows, and even use just a simple motion of your foot to open the boot. As long as you have the key within the proximity of the car, you are able to use KEYLESS-GO.
What kind of battery does a Mercedes Benz use?
You can check price and read reviews for multiple Mercedes-Benz AGM Group 94 Batteries that will fit your Mercedes-Benz. You know you have a relatively new battery. You go to start your Mercedes-Benz and you either hear it turn over once or hear several clicks as in this video. This opens in a new window.
Why is the battery on my Mercedes Benz not working?
Hint: Starter Problem or Low Battery This may seem obvious, but an old battery is the root of many headaches and can cause all sorts of malfunctions on Mercedes-Benz cars. How old is the battery on your Mercedes-Benz?
How do you change battery on Mercedes smart key?
To remove the metal key from the remote, push catch on the side and pull. Pull out the metal key. Turn the remote around. Insert the metal key to release a catch that will cause the cover to pop out. Stick one piece of sticky tape to one side of the battery. Stick another piece, front to front as shown.
How old is the battery on a Mercedes Benz?
This may seem obvious, but an old battery is the root of many headaches and can cause all sorts of malfunctions on Mercedes-Benz cars. How old is the battery on your Mercedes-Benz? While some MB owners have pushed over 10 years on an original battery, the battery should be considered for replacement around 6 or 7 years.
What kind of battery does a Mercedes Benz FOB use?
If you need a replacement battery note that Mercedes-Benz uses CR2025 battery type. Ensure you have new batteries in your key fob. Next, look carefully at your Mercedes-Benz key.
Why does my Mercedes zgw control module not work?
Mercedes-Benz Central Gateway Module ZGS (also referred to as CGW) may fail, causing various warning lights or systems to stop working. Mercedes Central Gateway module is the hub that allows communication between various modules. Mercedes ZGW Gateway control module stores data for Mercedes ASSIST or ASSYST plus.
Why is my climate control not working on my Mercedes?
The sensor can technically fail but as you are already noticing there is something else major going on here. Another issue that this particular car developed was the climate control would randomly stop working. Other times the climate control would operate completely normal. Next, the battery warning light came on.
Is the battery control module of a Mercedes Benz defective?
Failing that its the Battery control module. And failing that I am selling this piece of $hit car that is too overly complicated for its own good Mercedes use to mean quality cars…. how I wish the old days would return. Does your car have two (2) batteries? It may be possible that the small battery is defective.
What causes a Mercedes signal acquisition module to fail?
Typically this is caused because repair is performed in near the SAM control unit. If the SAM modules are not closed and sealed, properly they will eventually corrode. If a SAM module fails due to corrosion, at first you may notice that electrical problems are intermittent. Excessive current draw – SAM control units don’t fail often.
How do you replace a battery on a Mercedes Benz?
Replacing the battery is very easy. Remove the two battery terminals by loosening the 10 mm bolts. Remove the 13 mm bolt on the bracket that holds the battery in place. Install the new battery in reverse order. If you decide to replace the battery on your Mercedes-Benz, make sure to replace with a compatible battery.
Mercedes-Benz Central Gateway Module ZGS (also referred to as CGW) may fail, causing various warning lights or systems to stop working. Mercedes Central Gateway module is the hub that allows communication between various modules. Mercedes ZGW Gateway control module stores data for Mercedes ASSIST or ASSYST plus.
Why does my Mercedes not turn off when I Turn Off the key?
The system would start to beep as if you were approaching an object yet there was nothing near the car. Last but not least, the issue with this Mercedes was the engine not turning off when the key was removed from the ignition. While the instrument cluster lights would turn off once you removed the key, the engine would still run.
What happens if you lose a power seat module?
Door modules Loss of express-up feature due to loss of stored “pinch point” Engine control module (ECM, PCM, VCM) Loss of learned idle speed which can cause a stalling condition. Resetting of emission monitors can cause a smog inspection failure. Power seat modules Loss of “learned” seat and mirror positions