Do mercedes have two batteries?

• Some Mercedes models have two batteries, a main starting battery located in the trunk and a secondary smaller battery located under the hood near the windshield on the passenger side of the car. … The charging system for this setup is quite sophisticated to balance the alternators output between the two batteries.

Also know, what Mercedes has 2 batteries? The Mercedes vehicles with two batteries are the S-class (221) and SL class (230/231) models.

Likewise, what does the auxiliary battery in a Mercedes do? Auxiliary batteries work with your main starter battery, and as a backup battery in the event the main battery becomes disabled. It prevents your vehicle’s electrical components from dropping when starting/stopping your engine and keeps your radio, GPS, and other in-vehicle electrical components turned on.

Also, where is the second battery in a Mercedes? In many new Mercedes models, the auxiliary battery is located at the top of the front passenger footwell. You will need to remove some nearby plastic mouldings and peel back the carpet to gain access to the battery area, and the fastenings can be undone with a 10mm socket.

People ask also, does my Mercedes have an auxiliary battery? In newer model Mercedes-Benz vehicles, the Mercedes auxiliary battery is located inside of the front footwell of the passenger seat located near the top. To access the battery, you will need to completely detach all connecting parts in addition to removing the carpet so that you can gain possession of the battery.We produce batteries for all electric vehicle applications of Mercedes-Benz Cars. In addition to batteries for our purely electric vehicles such as the EQC, we are also responsible for making the batteries for our plug-in hybrids and the 48-volt batteries for our combustion-powered vehicles.

Can you charge an auxiliary battery?

By connecting the positive terminals of both batteries, you can easily use your alternator to charge your auxiliary battery. Your electrical loads won’t drain your starting battery, and your auxiliary battery will only be charged when the engine is running, if you have an isolator.

Can I drive my Mercedes with auxiliary battery malfunction?

Of course, you can drive your Mercedes even with a failed or malfunctioned auxiliary battery. This is because Mercedes has two batteries and the battery used to run the vehicle is the main one. So, even though you won’t be able to utilize functions such as start/stop, you can still drive your car.

Why do Mercedes have two batteries?

Some Mercedes models have two batteries, a main starting battery located in the trunk and a secondary smaller battery located under the hood near the windshield on the passenger side of the car. Essentially there is so much electrical demand on this car it needs two batteries.

Can you still drive with an auxiliary battery malfunction?

Can I drive the car with the auxiliary warning on? While the vehicle can still be driven with an auxiliary battery warning light on, for safety reasons, we recommend getting this problem fixed as soon as possible.

How do you charge an auxiliary battery?

You can easily use your alternator to charge your second (auxiliary) battery simply by connecting the positive terminals of both batteries so that they’re in parallel.

How do you change an auxiliary battery on a Mercedes?

How do you jump start a Mercedes?

1. Get your jumper cables out.
2. Bring the helper car next to your Mercedes-Benz.
3. Set emergency brake.
4. Open hood.
5. Turn helper car off.
6. Locate the battery on the helper car.
7. Connect the clamps to the Mercedes-Benz jump start terminals.
8. Start the helper car.

How do you test an auxiliary battery?

Is auxiliary battery covered under Mercedes warranty?

Auxiliary battery isn’t covered in the extended warranty.

What’s an auxiliary battery?

Auxiliary batteries, or what’s known as secondary batteries, are responsible for charging certain accessories in some vehicles that the alternator cannot charge. These batteries are not designed to last forever, and you will have to deal with the point where you need to replace them.