Likewise, where is the auxiliary battery in a Mercedes? Your Mercedes-Benz C 300 auxiliary battery is located under your hood, beneath your cabin air housing. It takes no more than a minute to access. Simply pop up your hood using your hood release lever and remove the cabin air filter housing to reveal the auxiliary battery.
Beside above, can you charge Mercedes auxiliary battery? Mercedes-Benz auxiliary battery is a rechargeable 12V 1.2Ah battery. The alternator charges the auxiliary battery when the engine is running. … If the battery is still good, your only option is to remove the car’s battery and charge it with a 12 Volt Smart Charger, then reinstall.
In this regard, how long does Mercedes auxiliary battery last? Properly cared for and maintained, you can expect anywhere from 18 months to 3 years of life from an auxiliary 12-volt battery. Much will depend on frequency of use, and how well the battery is protected. Rough roads can cause the cells to break down, reducing the lifespan.
Subsequently, where is the auxiliary battery located? What does an auxiliary battery do? Most vehicles, with only a large battery, usually located under the hood or, in some makes, in the trunk near the spare tire. There is a common misconception that your vehicle’s battery is responsible for charging all electrical components in your car.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.
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.
Why do Mercedes have an auxiliary battery?
The main function of mercedes-benz auxiliary battery is to provide voltage to “stop start” function, so this function may not work until you solve battery malfunction. You can keep driving a car for while, but it is always recommended to fix any fault as soon as possible.
Can you charge a car 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 change an auxiliary battery?
Can I drive my car with a failed auxiliary battery?
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.
What does w211 auxiliary battery do?
The auxiliary battery is located in the right side of the engine compartment, near the HVAC intake. … The auxiliary battery supplies power for a limited time if system charging or battery voltage drops. The battery control module monitors system voltage.
How much does it cost to replace a Mercedes battery?
Mercedes-Benz Replacement Battery Cost 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.
Is auxiliary battery covered under warranty?
Auxiliary battery isn’t covered in the extended warranty.
What is an auxiliary battery relay?
Battery isolator (or split charge relay) allows an auxiliary battery to be charged by the vehicle’s system, yet not participate in engine starting. It also prevents the starting battery from being run down by your equipment when the engine is off.