People ask also, what does Mercedes auxiliary battery 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 know, 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.
Also, how much does Mercedes charge to change auxiliary battery? The average cost for a Mercedes-Benz auxiliary battery replacement is between 200-300 USD. Labor costs are estimated between 50-100 USD, all of these prices are estimated and may vary.
Likewise, can you charge auxiliary battery Mercedes? 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.
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Do I need to replace auxiliary battery?
It’s generally located under the hood, although some makes and models have the primary battery in the trunk, near the spare tire. … Like all batteries, auxiliary batteries will eventually wear out or fail. When this happens, they’ll need to be replaced.
Can you charge 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 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.
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.
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 do you test an auxiliary battery?
Is auxiliary battery covered under warranty Mercedes?
Batteries are not an item covered on warranty. The aux battery is dead easy to access and fit….
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.
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.
Is auxiliary battery covered under warranty?
Auxiliary battery isn’t covered in the extended warranty.