No. But don't you have the metal key? If not, then how do you start the car?
Anyway if you don't have the metal key, you can try to take off the plastic cover on the bottom of the engine and reach up to pull on the hood release cable. But I'm not sure how much room you would have with the E420.
I do have the flip key, but I get no response from the car when I press the button, and I also get no response when insert and turn the key in trunk's keyhole. The keyhole in the front passenger door never worked, it just turns freely.
Would it be worth a try attaching a positive jumper cable to the heavy positive cable on the battery and of course ground the other one?
Actually you do not need a heavy jumper cable, if the purpose is to open the car doors so you can open the hood to charge the battery. For my other car, the battery is under the hood, close to the firewall. I had connected a fused cable that came with the battery maintainer which I extended to just under the passenger side wiper. The cable has a special connector and a protector cap. When I do not use the car. I put it on the maintainer. Even if I forget it and let the battery to discharge, I can connect the maintainer to charge the battery enough to open the doors.
I am thinking of doing that with the E320, using the charge posts under the hood at the driver's side. You can get fused cables with proper connectors to mate with the maintainer from Amazon or Ebay.
I bought a brand new Bosch battery just a few months ago in mid October. I drove it sparingly though because I had been working on it on and off with your help
and others in this forum. I just didn't think the battery would go flat this quickly...
So I'm locked out of the car, the battery is under the back seats, I can't open the hood. I was hoping there would be like a third positive terminal under the car somewhere, or a hack that you guys would know of.
Even if there was, I'm also not sure if I can jack the car up, it's on a slight incline in the driveway, parking brake not engaged. Maybe its safe to lift from one side and the help of a wheel chock?
Sent from my Galaxy Note9 using Tapatalk