Which terminal is disconnected from battery first?
When disconnecting the cables from the old battery, disconnect the negative first, then the positive. Connect the new battery in the reverse order, positive then negative.” When you are replacing your car battery, It isn’t always easy to remember the order in which to disconnect and reconnect the terminals.
Can you connect a battery disconnect switch to a positive terminal?
NEVER connect your automotive battery disconnect switch to the POSITIVE terminal of your battery. This is true for ALL top-post and side-post batteries*. Why not? #1 – They usually won’t fit. #2 – It’s not safe. All battery disconnect switches add additional, exposed area to the terminal it is connected to.
What to do if your Mercedes Benz battery is dead?
Begin by disconnecting the negative battery cables on both cars. Caution: Your Mercedes-Benz’s electrical systems can get damaged, or the control units will trigger under voltage fault codes if you let the car run while connected to a dead battery.
Where is the battery disconnect switch located on a car?
All battery disconnect switches add additional, exposed area to the terminal it is connected to. Whether it be a top-post or side-post disconnect switch. This additional surface area can more easily come in contact with other metal parts within the engine compartment.
Can a battery be reset after a disconnect?
Can someone who has the version of the manual that tells you everything that needs to be reset after a battery disconnect kindly duplicate that knowledge in a reply here. I’ve searched.
How to reset the battery in a Mercedes?
As for the gearbox, it is an adaptive gearbox and will “learn” your driving style as you drive it.Many people have tried this reset procedure,myself included, and found no difference but here it is anyway. Push the gas pedal right down to the floor and hold for 5 seconds. Turn the ignition off then release the pedal.
What happens when you disconnect the battery on a late model car?
So, disconnecting the car battery to reset the (PCM) on late model vehicles; can do more than just erase the keep alive memory. It can also erase vital learned information that is; absolutely necessary for other modules to function normally. It all depends On; The Year, Make And Model Of Your Vehicle.
Can someone who has the version of the manual that tells you everything that needs to be reset after a battery disconnect kindly duplicate that knowledge in a reply here. I’ve searched.
What’s the best way to disconnect a car battery?
Clean any corrosion off of the battery and terminals with a can of spray-on battery cleaner. Disconnect the negative battery cable and then the positive cable with a combination wrench. Clean the battery posts and terminals with the post and terminal cleaning tool, so you have a good connection when you’re done.