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.
Also know, 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.
Subsequently, what Mercedes has 2 batteries? The Mercedes S550 is one model that has two batteries; one to start the engine, and another – called the auxiliary battery – to run the car.
In this regard, why does a car have two batteries? So a dual battery system is a must. … The final requirement of a dual battery system is for the second (or accessory) battery to be easily charged by the vehicle when you’re driving or the engine is running. This will ensure it’s charged and eady to use when you arrive at the next campsite or job.
Beside above, 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.It’s not recommended to drive when you’re experiencing issues with your auxiliary battery. However, it does not put you in any immediate danger as long as you don’t notice a decline in the overall handling and performance of your car.
Can I drive my Mercedes with 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.
Does Mercedes make their own 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.
How do you know if your auxiliary battery is bad?
- The battery symbol on the dashboard.
- Stop vehicle shift 2P leave engine running.
- Stop vehicle leave engine running.
- Auxiliary battery malfunction.
Will dual batteries hurt my alternator?
You can run two batteries on the same alternator. Alternators protect against excessive current drain and aren’t affected by multiple batteries. … The alternator registers these two batteries as a single large battery and charges them the same. The batteries self-regulate the amount of current they take as they charge.
How do I connect a second battery?
Do any cars have 2 batteries?
Most hybrid vehicles, like the Toyota Prius, have two batteries. A smaller 12 Volt auxiliary battery, and the much larger high voltage Hybrid System Battery. The purpose of the 12V, is to power the computer and accessories when the hybrid system is not in Ready Mode, and to assist in starting the vehicle. … Audio systems.
How much does it cost to replace Mercedes battery?
The price for a new battery on a Mercedes-Benz will generally range from $280 to $400. However, you can cut the cost of battery replacement by as much as $100 and sometimes even $200 if you opt to do the replacement work yourself.
How do you jump start a Mercedes?
- Get your jumper cables out.
- Bring the helper car next to your Mercedes-Benz.
- Set emergency brake.
- Open hood.
- Turn helper car off.
- Locate the battery on the helper car.
- Connect the clamps to the Mercedes-Benz jump start terminals.
- Start the helper car.
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.