Where is the battery located in Mercedes-Benz E-Class?
3 Answers
Mercedes-Benz E-Class has two batteries: the small battery is located behind the headlight switch; the large battery is located at the rear right of the engine compartment. Here are the maintenance methods for the battery: 1. Avoid storing the battery in a discharged state. A discharged state refers to when the battery is not charged promptly after use. In this state, sulfation is likely to occur, with lead sulfate crystals forming on the plates, blocking ion channels, leading to insufficient charging and reduced battery capacity. The longer the battery remains idle in a discharged state, the more severe the damage. When the battery is not in use, it should be charged once a month to extend its lifespan. 2. Regular inspection is necessary. If the driving range suddenly drops by more than ten kilometers in a short period, it is highly likely that at least one battery in the pack has issues such as broken grids, softened plates, or shedding of active material from the plates, causing a short circuit. In such cases, promptly visit a professional battery repair facility for inspection, repair, or replacement. 3. Avoid high-current discharge. Try to minimize instantaneous high-current discharge, as it can easily lead to lead sulfate crystallization, thereby damaging the physical properties of the battery plates.
I've been driving a Mercedes-Benz E-Class for several years and noticed the battery is usually located under the hood near the windshield. Specifically, it's in the front right section of the engine compartment - you'll see the black battery box protected by a plastic cover when you lift the hood. Some high-end models might have the battery in the trunk floor, but standard E-Class models typically have it upfront. I've checked mine before - first disconnect the negative terminal to prevent short circuits, then gently pry open the cover with tools for replacement. The location offers good ventilation and quick heat dissipation, though small items dropped there can be hard to retrieve. Always consult the manual or visit a dealership before battery replacement - safety first. Also beware of battery acid burns; wear gloves when handling. Battery drain in cold winter mornings is common - regular maintenance extends its lifespan.
After working in the repair shop for a long time, I often encounter Mercedes-Benz E-class owners asking where the battery is located. In most cases, it's in the engine compartment, on the driver's side corner, secured with a metal bracket. Why is it placed there? The design considers compact space and shorter wiring to reduce resistance. But be careful, opening the cover can easily damage the wiring. If you can't find it, it might be blocked by the fuse box, or higher-end E-class models may have an auxiliary battery in the trunk. When working on it yourself, always turn off the engine and power, then use pliers to test the voltage. The battery's location affects maintenance frequency; I recommend checking the connection points for oxidation every six months and applying some grease to prevent rust. Genuine Mercedes-Benz batteries are more expensive, but third-party replacements are fine as long as they're compatible.
