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Tips on How to Jump Start a Mercedes-Benz Safely

Top 3 Best Jump Starters for Mercedes-Benz

  1. Noco Genius Boost GB40 Ultra Safe Lithium
  2. Gooloo 600 Peak Jump Starter Power Bank
  3. Stanley JC509 1000 Peak AMP with Air Compressor

4 Tips on How to Safely Jump-Start a Mercedes-Benz

How to connect jumper cableJumpstarting a Mercedes-Benz can be a nerve-wracking experience and, if performed wrong, an expensive mistake. We have seen many Mercedes-Benz with damaged electronics or additional fault codes due to improper jump starting. It is common for warning lights to light up your dashboard after you jump-start your Mercedes-Benz. In this article, we share some tips to help you avoid unnecessary problems and repairs.

Here are a few tips on how to safely jump-start a Mercedes-Benz

Tip 1 – Use the dedicated jump-start terminals

Most Mercedes-Benz models, such as the E, C, S, CLK, ML, CLA, GL, and G Class, have a positive battery terminal in the engine bay designed specifically for jump-starting. The terminal is covered with a red plastic cover marked with a (+).  This terminal should be used to jump-start a Mercedes-Benz whenever possible. Right next to it, there is a post for you to connect the negative clamp. This adds a layer of protection in case you incorrectly connect the jumper cables.

how to safely jump start a mercedes benz e c s gl ml cls clk class

Tip 2 – Disconnect and charge the battery whenever possible.

If your situation permits, it is better to disconnect the battery terminals and charge the battery separately before you try starting the Mercedes-Benz. By fully charging the battery before you start the car, you will avoid triggering unnecessary warnings and fault codes. It is less likely to cause damage to electronic components as well. Warnings such as Low Battery Voltage and SRS Airbag Malfunction can be triggered when jump-starting an MB since the battery takes a while to get charged. This can be avoided if you charge the battery before you start your car. If you have a completely discharged battery that is relatively new, we recommend charging it using a 2 amp trickle charge to bring the battery back to life. We frequently use a Black and Decker 12 volt Trickle Charger to charge Mercedes-Benz battery. Remember that using this method, you must charge the battery for at least 12 hours.

trickle charge mercedes benz

Tip 3 – Use a jump starter that provides reverse polarity protection.

If you are stranded in a parking lot, you may have no option but to jump-start your Mercedes-Benz on the spot. With hundreds of jump starters on sale, you may wonder what’s the best jump starter for Mercedes-Benz cars.  We recommend using a jump starter that provides reverse polarity protection. These mistake-proof jump starters allow you to safely connect to any battery and minimize potential damage to those expensive electronics and control units found on Mercedes-Benz cars.

The Noco Genius Boost GB40 provides Ultra Safe spark-proof technology and reverse polarity protection. This model provides 1000 Max Amps and enough cold cranking amps to jump-start even eight-cylinder Mercedes-Benz engines, and yes, it can fit in your glove box.

noco lithium jump starter best for mercedes benz

Tip 4 – MB Medic 2×10 minute rule

Have no option but to jump-start a Mercedes-Benz right there and then? Follow this rule to minimize causing unnecessary low-voltage fault codes.

What is the MB Medic 2×10 minute rule?

MB Medic 2×10 minute rule

Step 1 – Connect the jumper cables or jump box to your dead Mercedes-Benz battery and let it charge for at least 10 minutes before the jump start. Not only do you start the battery recovery/charging process, but it will be easier to crank the engine. Otherwise, you may only hear a click, and the engine won’t turn over.

Step 2 – Keep the jumper cables connected for another 10 minutes after you start the car. The jump box will provide current for your Mercedes-Benz if the main battery voltage is still low. In the meantime, the main battery continues to get charged.

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