Is the battery on my Mercedes Benz W203 draining?
2002 C220/W203 Battery drain. Not seat modules. Overhead? | Mercedes-Benz Forum 2002 C220/W203 Battery drain. Not seat modules. Overhead? Over the last two years, i’ve been experiencing periodical battery drain. Overnight the car won’t start. At first, i replaced the battery, still had the same problem.
Is the battery draining on my 2002 C220?
2002 C220/W203 Battery drain. Not seat modules. Overhead? Over the last two years, i’ve been experiencing periodical battery drain. Overnight the car won’t start. At first, i replaced the battery, still had the same problem. A fully charged battery can be drained, to the point that the car doesnt crank, in about 12-18 hours.
Why does my Mercedes medic draw so much battery?
A radio receiver in the car continuously listens for wake up signal from the key. As the car receives a signal in the assigned frequency it wakes up to validate the key. This causes current draw for several seconds. If the car is left parked in high pedestrian traffic areas this could be a problem.
What should the amperage reading be on a Mercedes medic?
As you remove each fuse you should check the amperage reading on the multimeter. If the multimeter reading is still high, reinstall the fuse and go to the next fuse. Continue removing and reinstalling all the fuses one at a time, until you pull one that makes the multimeter reading drop to below 0.5 A.
2002 C220/W203 Battery drain. Not seat modules. Overhead? | Mercedes-Benz Forum 2002 C220/W203 Battery drain. Not seat modules. Overhead? Over the last two years, i’ve been experiencing periodical battery drain. Overnight the car won’t start. At first, i replaced the battery, still had the same problem.
2002 C220/W203 Battery drain. Not seat modules. Overhead? Over the last two years, i’ve been experiencing periodical battery drain. Overnight the car won’t start. At first, i replaced the battery, still had the same problem. A fully charged battery can be drained, to the point that the car doesnt crank, in about 12-18 hours.
What causes battery to die on Mercedes medic?
A defective electrical system, Control Unit or a fault on the CAN Bus (Controller Area Network) are also causes that can cause your Mercedes-Battery battery to die. To troubleshoot the current draw, you need a multimeter that can perform current reading.
As you remove each fuse you should check the amperage reading on the multimeter. If the multimeter reading is still high, reinstall the fuse and go to the next fuse. Continue removing and reinstalling all the fuses one at a time, until you pull one that makes the multimeter reading drop to below 0.5 A.
What should I do if my car battery is draining?
Remove the key from the ignition and let the car sit for at least 15 minutes. In some models you may need to wait up to 30 minutes for all the electronic systems to go “to sleep”. This will allow the car to shut off any electronic consumers that stay on for a brief period after the car is parked.
Why does my Mercedes-Benz battery keep draining?
You try to start your Mercedes-Benz and the car is either completely dead or this happens: Battery drains happen when electronic equipment (consumer units) are constantly drawing current from the battery while the car is parked. One simple example is when lights are left on overnight. But it’s not always as simple as that.
A radio receiver in the car continuously listens for wake up signal from the key. As the car receives a signal in the assigned frequency it wakes up to validate the key. This causes current draw for several seconds. If the car is left parked in high pedestrian traffic areas this could be a problem.
Remove the key from the ignition and let the car sit for at least 15 minutes. In some models you may need to wait up to 30 minutes for all the electronic systems to go “to sleep”. This will allow the car to shut off any electronic consumers that stay on for a brief period after the car is parked.
What should fuse reading be on Mercedes medic?
The reading should ideally be under 0.05 ampere. Locate the fuse box in your car. Disconnect the fuses one at a time. As you remove each fuse you should check the amperage reading on the multimeter. If the multimeter reading is still high, reinstall the fuse and go to the next fuse.
Can a fully charged battery drain a car?
A fully charged battery can be drained, to the point that the car doesnt crank, in about 12-18 hours. The problem is more evident during winter time (I live in Norway, cold winters etc), but it may very well happen all year, only that i need more amps for a cold (sub-zero celcius) start.
Why is the battery draining on my Mercedes medic?
If the car is left parked in high pedestrian traffic areas this could be a problem. It may cause the battery to drain within a couple of days in some models. Try to turn off the proximity key function in your car by looking up the instructions on the owner’s manual.
What to do when your car battery goes to sleep?
In some models you may need to wait up to 30 minutes for all the electronic systems to go “to sleep”. This will allow the car to shut off any electronic consumers that stay on for a brief period after the car is parked. Locate the battery in the trunk or in the engine compartment.