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2000 e320 4matic 4 door sedan
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Discussion Starter · #1 ·
I"m a newbie and would like to know how to disconnect battery. Is it necessary to remove rear seat? Is it OK to jump start using underhood plus and minus contacts? 'any thing to go wrong? Regards, Abe G
 

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'01-E320 & 02-ST2
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Hi, Abe. Please take a minute and click user cp and edit details so you can easily add your vehicle and location to your profile; it's often useful information when you're seeking assistance.

Rule one for most things concerning the battery: Be sure the KEY stays OUT of the ignition. You can do serious damage to expensive components.

Did you read the sticky on replacing the battery? That's how you'd also go about disconnecting it. If you're only wanting to remove it from the circuit to reset things or prevent a discharge because you're leaving it parked a long while, that's what the little access port in front of the right rear passenger seat is for, pop the cover, remove the bolt, pull the cable loose. It's a good idea to have a piece of cardboard or plastic to stick in the way so the cable doesn't try to bend back and re-contact the chassis ground.

The jump points under the hood should be thought of as a convenience only; IMHO the best practice is to never jump the thing. Why? Because if you do it wrong you may end up with a really expensive yard decoration or a salvage vehicle, because they're too old to be worth replacing the DAS components. But if you are going to jump it, be sure the key is in your pocket, connect the leads properly under the hood, then open the door, insert the key and try to start it. If it will not start, don't keep trying (this may mean your battery is too shot or dead to help the jumper battery). Remove the key, disconnect the leads, and have your battery charged or replaced.

Good luck.
 

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1922 Ford T no OBD, no ECU, no SCN
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37,854 Posts
I did jump MB without any troubles, but
1. jump only weak battery, replace dead battery in the car
2. make sure you have good clamps firmly holding clean connections to avoid any sparking or power surges.
3. use only shop grade cables, not the #10 wires popularly sold.
#10 wire is rated for 30 amp in household use, your starter need at least 10 times that, if not 25 times.
 

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1997 E320, 1997 S320
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Registered
1922 Ford T no OBD, no ECU, no SCN
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37,854 Posts
Thanks for the answers to my questions! How to CHARGE battery in car e320, year 2000? Regards. Abe G
First
MAKE SURE NO KEY IN THE IGNITION
Than don't use older chargers with no overcharge protection.
The safest way would be pull the rear seat, disconnect the battery clamp and hook up the charger directly to the battery. That kind of charging should be done with open door of window.
Having fully automatic battery charger I don't hesitate to hook it up to the post under the hood and set it to low current charge, but that only for refreshing the battery on the car that wasn't started for long time.
 
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