The CDI battery for a 2007 Mercedes R320 can be found in the front passenger's area. You're going to need to remove the bottom front of the seat and undo the bolts holding it in place in order to access it. The entire front bottom of the seat is going to need to come off. Once You have it off there will be a black panel that is going to need to be removed. Finally once You have this panel off You're going to be able to see where the battery is located. A replacement battery will cost You between $40 and $100 depending on where You shop.
Krista D
July 16, 2020
The 2007 mercedes r320 cdi battery is located under the front passenger seat of the vehicle.
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