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My mechanic told me it helps start your car.

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Q: What is the function of 2003 Mercedes E320 back-up battery?
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Where is the battery located on a 2003 Mercedes E500?

For that model year there are two batteries. The largest one is in the trunk underneath the spare tire. The smaller one is in the engine compartment and is about the size of a motorcycle battery. This second battery is an emergency backup due to the fact that the braking system is electrically powered.


Where is the battery located on a Mercedes s500 2003?

Trunk< under left panel>


What is the function of 2003 Mercedes E320 back up battery?

This small battery is for the sbc braking system. Your car uses a electronic brake pump. The battery is their for a back up electricity supply just in case there is catistrofic failure of main battery or power supply to the sbc pump.


Where is auxilliary battery for 2003 Mercedes Benz e320?

under the hood. top left


How do you check your Battery fluid level on mY 2003 Mercedes S500?

i can't detect key for satart


How do you jump start a Mercedes?

Where are the jump start terminals under the hood on a 2003 e320


Where is the battery located on a 2003 Mercedes G500?

The Battery for the Mercedes G500 is in the rear footwell. Think the hump on the floor where the passengers sit. You have to remove the cup holder (held on by 2 screws) pull up the mat on the floor (in the center) and viola -- battery. Battery has a vent hose on side.


How much does a new battery cost on a 2003 C-240 Benz?

A new replacement battery for a 2003 Mercedes-Benz C240 costs between $128.34 and $173.26. The price of $173.26 is the list price.


Can you jump start a 2003 E320 Mercedes Benz from under the hood as opposed to the battery located in the trunk?

Waiting for the answer.


Where is the aux battery on a 2003 Mercedes e320 I've already replaced the one in the trunk?

Check under the back seat.


When you stop your Mercedes e320 2003 model for more than 24 hours then the battery goes dead?

Dead cell in the battery or something is on pulling power from the battery. Have the battery tested at any auto parts store.


Where is car battery in Mercedes sl500 2003?

I have a 1993 300sl and the battery is in the trunk on the passenger side. There is a knob that has to be twisted out and the wll of the trunk should pop out revealing a car battery. Its not that hard. Hope this helps.