Disconnect the auxiliary battery. Commence by disconnecting the negative terminal 1st, accompanied by the good terminal. Be mindful never to let the equipment contact each terminals at the same time.
In case you’ve at any time observed the dreaded “Auxiliary Battery Malfunction” concept pop up with your Mercedes dashboard, you’re not by yourself. The first time it took place to me, I used to be cruising down the highway, and quickly my display screen lit up with warnings. My heart skipped a beat.I thought, “Is my car going to stop?” Thankfully, it didn’t—nevertheless the information intended organization.
Changing the 12V battery consists of disconnecting the negative terminal‚ eliminating the old battery‚ and installing the new just one. Normally connect the positive terminal initial for protection.
The PolySwitch fuse performs like a normal fuse, in that it shields from surges and overcurrents. It keeps the move of electrical power inside regular ranges.
After these ways, your Mercedes really should operate without the warning message. It’s an awesome experience to unravel car concerns yourself, isn’t it?
In the event you’re experiencing minimized electricity, seeing a Test motor gentle, and having a basic feeling of…
Be careful not to damage the surface from the cable lug or abrade the Speak to surface With all the screwdriver.
four. It's challenging to suit this in the tiny House supplied for that battery. I eradicated the very best deal with, mounted the device around the minus terminal, and fabricated a pad to protect the constructive terminal.
A reset may go When the battery continues to be healthful and The difficulty was short term. Nevertheless, When the battery is previous or failing, replacement is the more dependable Answer. Repeated warnings are a robust signal that a completely new Mercedes Battery See Owners Manual battery is needed.
Certainly one of The main functions of the auxiliary battery is to work the gear change selector once the main motor vehicle battery dies.
If the Mercedes-Benz car or truck hesitates to activate eco start/end, or you see flickering interior lights, the 2nd battery may be the culprit.
5V–fourteen.5V‚ indicating the alternator is charging. If your voltage continues to be lower‚ the alternator or battery could be faulty. Assure all electrical systems are off for the duration of testing for precise results. This method assists identify challenges within the charging system or battery health and fitness‚ guiding even more diagnostics or repairs as needed.
The most typical place for the auxiliary battery over a Mercedes-Benz is within the still left side with the dashboard. Other locations are where you will see auxiliary batteries on the Mercedes-Benz.
In some cases, the analysis might be above your head. No matter if you don’t have the appropriate code scanner, or else you aren’t versed in working on your Mercedes, it would be very best to visit a local repair store.