How you know it is this
- An EV that is completely dead with a charged traction battery
- Multiple unrelated warning lights
- A car that will not wake or will not unlock
- A battery that flattens after a few days standing
Worth knowing before you buy
- AN EV WITH A FULL PACK AND A FLAT 12-VOLT BATTERY WILL NOT MOVE. The 12-volt system is what closes the contactors, so without it nothing happens at all.
- IT IS THE CHEAPEST PART IN THIS WHOLE SYSTEM and it causes the most alarming symptoms. Always the first thing to test on any strange EV electrical fault.
- Heat kills batteries here, and the fact that the car is electric does not change that.
- Usually needs registering to the car after replacement.
What we need to quote it. The chassis number. The chassis number settles the generation, the body and usually the engine in seventeen characters — it is on your mulkiya. A photograph of the old part helps where there is more than one version.
Rest of the high-voltage distribution
Get in touch
12-volt auxiliary battery for your Mercedes-Benz?
Send the chassis number and a photograph of the old part. We come back with genuine, OEM and aftermarket options priced side by side, with lead times.
Mon–Sat, 8:00 AM – 6:00 PM · +971 54 303 3119 (Operations Director) · +971 54 241 0599 (Managing Director)