Coupe battery replacement
There is very little that is as disheartening as getting into your car and being greeted by the soft click-click of an non-starting car because of a dead battery. With modern luxury vehicles, this is a death knell as the control electronics will prohibit you from doing anything besides call for a rollback and a taxi.
Related: Find out what’s the correct tyre pressure for your Mercedes-Benz GLC Coupé
The average lifespan of a 12v car battery is in the region of 3-5 years; once a battery reaches this point, it begins to lose its efficiency and is unable to power the vehicle's electrical system properly. This leads to problems starting the car and errors in the interior electronics. The only way to remedy the situation is to replace the car battery, if you have the know-how and a few speciality tools, we can show you how it's done.
Can you jumpstart a car with a dead battery?
You will need:
- 10mm socket
- Socket extension
- T45 Torx bit
- Replacement battery (type: 115 AGM)
Let's get it done!
The Battery Shop has a detailed video documenting the process. See below for a link.
1. Open the bonnet and locate the battery. On the GLC it is under the plastic cowling, ahead of the passenger (RHD market).
2. Remove the plastic cowling by twisting the plastic fasteners.
3. Undo the clips to the cabin filter housing and pull it away from the firewall.
4. Undo the negative terminal (NEG/Black/-) with a 10mm socket and remove the terminal from the post.
5. Undo the positive terminal (POS/Red/+) with a 10mm socket and remove the terminal from the post.
6. Carefully unclip the vent tube on the side of the battery.
7. Undo the retaining bracket with the T45 Torx bit and socket extension. Move the loose bracket out of the way.
8. Remove the old battery with the supplied handles.
9. The installation of the new battery is the reverse of the removal. Note that you will have to reset electronics in the vehicle, such as presets and radio stations.
Watch the video here: Mercedes GLC300 OPTIMA H6 Battery Installation - The Battery Shop
