Why do you need a battery in a Mercedes C class?
The battery is integral to almost every system in your C-Class. It provides the power to make your engine come to life when you turn the key. But batteries cannot power a vehicle alone. They need the help of an alternator to keep charging levels in the normal range. This article applies to the Mercedes-Benz C-Class and C-Class AMG (2007-2014).
When to replace battery in Mercedes Benz W204?
Crank the engine for 10 seconds and monitor the battery voltage with a DVOM. If the battery voltage drops below 9.6 volts during this time, it will need to be replaced or charged again and re-tested. Figure 3. A battery condition table. The W204 uses the AGM type. Figure 4. The red box indicates the fuel pump fuse.
Why does my Mercedes AMG battery not charge?
There are several reasons your alternator is not charging like it should, such as: Damage to the pulley or belt (usually accompanied by a squealing or squeaking noise) To test your alternators output, simply: Re-connect your DVOM to the battery.
What should current be on Mercedes medic battery?
Connect one test lead to the battery post and the other to the negative battery cable. You should see a current draw of less than 0.1 Ampere or 100 milliamps. If your read is over this value we need to do further troubleshooting. The reading should ideally be under 0.05 ampere. Locate the fuse box in your car. Disconnect the fuses one at a time.
When to replace the battery on a Mercedes CLA?
I have a 2014 CLA 250 Edition 1. The batteries are now due for a battery replacement. Is it best to replace it with an aftermarket batteries or replace it with the oem battery?
What was the 2015 CLA auxiliary battery malfunction?
2015 CLA – Auxiliary Battery Malfunction? Just had a weird experience! I was stopped at a red light and my car seemed to stall – all the lights went off and the engine shut down. I was able to restart the car and drive it fine.
Why does my Mercedes CLA Charger not charge?
If I hit the remote to unlock or lock the door, while still tendered, the battery tender changes from float to charging. Any use of power apparently drains the battery to some degree, IMO. I could not believe how sensitive this car is to power being used.
How can I tell if my Mercedes medic battery is draining?
Check that the glove box light does not stay on when the car is parked. The easiest way to check this is to open the glove box after the car is parked for a couple of hours. Place your hand near the glove box light bulb and feel it if it is warm. Be careful not to burn your hand. Aftermarket alarm system.