Changing battery where is it located and how hard is it to change

You can change the battery in the remote. Or, sometimes, if you press the remote real hard where the battery is located, it will work. Usually they have a bad solder joint holding the battery.
Hope this helps.

I just finished changing the battery myself on my own 2006 CLK500, so its clear in my mind. The battery is located under the hood (near the firewall) on the passengers side, just under the black plastic air cleaner housing, that is held in place by 3 metal clips. You need to unclip 3 clips, lift the air cleaner housing up and out to expose the 12V battery. You need a 10mm hex driver to remove the post clamps and a 13mm socket on the end of a 16 inch extension with ratchet to remove the 2 battery hold-down bolts, that are a bit hard to see without a flashlight (from the top, looking down). Remove the 13mm nuts and the bracket that holds the base of the battery in place and remove the battery. Installation is the reverse. Don't forget to install the battery acid drain hose and elbow, by removing it from the old battery. (It doesn't come with the new battery ($224.00 retail for new 12V battery). Also $35 core charge from Mercedes. That's it. And you'll have to reset your clock.

Even after charging the battery or jumping? Do you know where the starter is located and what it looks like? Round, 3 wires coming out of the top, located under the engine at the rear. Check these wires and make sure they are secure. Located on top of the starter is the selonoid which causes the starter to engage. With the vehicle in park, emergency brake applied, have someone try starting it while you lay underneath. Listen for a clikcking to come from the seloniod. Can put your hand on it and feel the click too. If you get a strong click, but the starter does not engage, you may have a bad starter. Not too hard to change out but take battery cables off 1st! Also change the seloniod if you take the starter off. You do not want to do this twice so easier to make sure both parts are new. GT

Front Fog Light Assembly

REMOVAL

1. Disconnect the ground cable from battery.

1. Remove the two clips and lower mudguard on side that bulb is being changed.
2. Disconnect the harness connector from bulb on back of fog lamp.

Front Fog Light Bulb

REMOVAL


1. Locate back cover on fog lamp assembly where bulb is located inside.

1. Remove the back cover.

1. Remove the spring retainer, and then detach the fog light bulb.
2. DO NOT TOUCH HALOGEN BULB!! Oils from skin will cause bulb to explode during operation.
   

The ECM is under hood on the firewall around the master cylinder, there should be two to three bolts that need removal to come out on front side of fire wall. Not to hard of job remove battery cables positive and negative.

the gas filter is located on the gas tank its not that hard to change but can take awhile to do only cos u have to take the tank off

follow the positive battery cable, it should end at the starter

its located behind the front tired on the driver side a lil hard to change

pull on the noob right next to the time one way changes hours other way changes min. !!!!!!!!!!!!!!pull hard on noob that you can turn it!!!!!!!!!!!!!!!!!

FOR EITHER ENGINE(2.2I4 OR 2.7LV6) THE THERMOSTAT IS LOCATED ON THE BACK OF THE ENGINE ABOVE THE TRANSMISSION BELL HOUSING, AND NO IT IS NOT VERY HARD TO CHANGE. YOU WILL HOWEVER NEED TO REMOVE THE AIR INTAKE TUBE AND POSSIBLY THE AIR FILTER BOX TO GAIN ACCESS

I’m happy to assist further over the phone at https://www.6ya.com/expert/jonathan_3a3c556b4b17d1d2