How to Jump-Start a Mercedes-Benz That Has a Dead Battery

A Step-By-Step Guide to Jump-start Your Mercedes-Benz Vehicle 

⏰ 3-minute Read – A dead battery can leave you stranded at the most inconvenient times, but knowing how to jump-start your Mercedes-Benz can get you back on the road. While the process requires caution, it is straightforward with the right tools and a little guidance.  

At Mercedes-Benz of Arrowhead in Peoria, AZ, we’ve compiled a step-by-step guide to jump-start your luxury vehicle. 

What You Need to Jump-Start Your Car 

Before starting, gather the following items: 

• A set of jumper cables 
• A second vehicle with a working battery 
• Electricity-safe gloves 
• A blanket (optional for added safety) 

Step-by-Step Guide to Jump-Starting Your Mercedes-Benz 

Position the Vehicles

• Park the assisting vehicle close to your Mercedes-Benz, ideally with the hoods facing each other. Ensure both vehicles are in Park and the parking brakes are engaged.
• Turn off the engine of the assisting vehicle.

Locate the Battery Terminals

• Open the hoods and identify the battery terminals on both vehicles.
• Positive terminals are usually marked with a red cover, while negative terminals are black.
• Check for corrosion—clean off any buildup before proceeding.

Attach the Jumper Cables in the Correct Order

• Connect the red clamp to the positive (+) terminal of the dead battery.
• Connect the other red clamp to the positive (+) terminal of the working battery.
• Attach one black clamp to the negative (-) terminal of the working battery.
• Finally, to ground the circuit, attach the remaining black clamp to an unpainted metal surface on your Mercedes-Benz (not directly to the battery).

Jump-Start the Vehicle

• Start the engine of the working vehicle and let it run for a few minutes.
• Try starting your Mercedes-Benz. If it doesn’t start immediately, wait a few more minutes and try again.

Safely Disconnect the Cables

• Once your Mercedes-Benz starts, carefully remove the jumper cables in the reverse order:
• First, remove the black clamp from the grounded metal surface.
• Then, remove the black clamp from the working battery.
• Next, remove the red clamp from the working battery.
• Finally, remove the red clamp from your Mercedes-Benz battery.

Allow the Battery to Recharge

• Let your vehicle run for at least 10 minutes to allow the alternator to recharge the battery.
• Take a short drive to ensure the battery holds a charge.

When to Seek Professional Assistance

If your Mercedes-Benz doesn’t start even after attempting a jump-start, there may be an underlying issue, such as:

• A failing alternator
• A damaged starter motor
• A faulty ignition switch or fuse
• A severely drained or expired battery

If you have any of these issues, our certified technicians at Mercedes-Benz of Arrowhead in Peoria, AZ, are here to help. Schedule a service appointment, and we’ll diagnose and resolve any battery-related problems.

[Also read: How to Maintain Your Mercedes-Benz Battery] 

Stay Ahead with Battery Maintenance

No driver wants to jump-start their car more than necessary. To avoid battery-related issues in the future:

• Get your battery checked regularly.
• Avoid leaving electrical components running when the engine is off.
• Replace an aging battery before it completely fails.

For professional battery inspections and replacements, visit Mercedes-Benz of Arrowhead in Peoria, AZ. Our team is dedicated to keeping your luxury vehicle performing at its best. Schedule a service appointment today and drive with confidence!