If you've been hunting for the 2020 range rover evoque auxiliary battery location, you probably realized pretty quickly that Land Rover didn't make it obvious. It's not like the old days where you'd pop the hood, see a big black box, and call it a day. Modern SUVs, especially the Evoque, are packed with so much tech that they need more than one power source to keep everything running smoothly. If your auto start-stop has stopped working or you're seeing weird "Gearbox Fault" messages, that tiny hidden battery is usually the culprit.
So, where exactly is it? On the 2020 model—which is the second-generation "L551" body style—the auxiliary battery is typically tucked away behind the passenger-side dashboard end panel or hidden deep within the passenger footwell area. To get to it, you usually have to pull back some of the carpet or remove a trim panel near the center console/footwell kick plate. It's a bit of a squeeze, and it definitely feels like you're performing surgery on the car rather than just doing basic maintenance.
Why does the Evoque even have two batteries?
It seems like overkill, right? But there's a method to the madness. The main battery under the hood does the heavy lifting—it cranks the engine and powers the lights. However, the 2020 Evoque is a "Mild Hybrid" (MHEV) in most configurations. This means it relies heavily on an auto start-stop system to save fuel.
Every time you hit a red light and the engine cuts out, the auxiliary battery steps in. It keeps the electronics, the infotainment system, and the transmission sensors alive so the car doesn't completely "die" while you're waiting for the light to turn green. Without that little secondary battery, the car's brain would get confused every time the engine shut off, and you'd likely get stuck in Park at an intersection. Not exactly a fun Friday afternoon.
Spotting the symptoms of a failing aux battery
Before you start tearing your interior trim apart, you might want to be sure it's actually the auxiliary battery causing your headaches. These things usually last about three to five years, so if you're driving a 2020 model, you're right in that "danger zone" where the battery is probably reaching the end of its life.
The most common sign is the auto start-stop system just quitting. You'll see a little symbol on the dash (usually an 'A' with a slash through it) saying the system is unavailable. Most people actually prefer it when start-stop doesn't work, but it's a huge red flag that your auxiliary battery is low on juice. Another weird symptom is getting a "Transmission Fault" or the car struggling to shift out of Park. Since the aux battery provides backup power to the electronic rotary shifter, a voltage drop can make the car think there's a mechanical failure when it's really just a battery issue.
Getting to the 2020 range rover evoque auxiliary battery location
Okay, let's get into the nitty-gritty of how you actually find this thing. You're going to want to head over to the passenger side of the vehicle.
- Clear out the footwell: Move the passenger seat as far back as it'll go. You're going to be spending some time on your knees in the footwell, so you'll want the space.
- Pull the trim: There is a side panel on the center console, right near where the passenger's left foot would rest. You usually have to pop this panel off. It's held in by clips, so a plastic pry tool is your best friend here. Don't use a metal screwdriver unless you want to scratch your nice interior.
- Check the carpet: In some versions of the L551, the battery is hidden behind the carpet further up the firewall. You might need to pull the carpet back to see the small black bracket holding the battery in place.
- Identify the battery: It's small. It looks more like something you'd find in a high-end alarm system or a motorcycle than a car battery. It'll have a positive and negative terminal just like the big one, but everything is miniaturized.
Don't confuse it with the 48V MHEV battery
This is a big one. Since the 2020 Evoque is a mild hybrid, it actually has a third power source—a 48-volt lithium-ion battery. That one is usually located under the floorboards, roughly beneath the front seats.
Do not mess with the 48V battery. You can tell which wires belong to the high-voltage system because they are almost always bright orange. Touching those without the right training and equipment is dangerous. The auxiliary battery we're talking about is a standard 12-volt lead-acid (or AGM) battery. It's much smaller and much safer for a DIYer to handle. Just look for the small 12V unit, not the big expensive-looking tray with orange cables.
Tools you'll need for the swap
If you've located the battery and decided to change it yourself, you don't need a full mechanic's chest, but you do need a couple of specifics: * 10mm socket or wrench: This is the universal "Land Rover size." You'll need it to loosen the terminals. * Plastic trim removal tool: Like I mentioned before, this saves your dashboard from looking like a cat scratched it. * A flashlight: It's dark down there in the footwell, even in the middle of the day. * The replacement battery: Make sure you buy the exact spec. These aux batteries are often labeled as "CX23-10C651-BA" or similar part numbers. Check your manual or the label on the old battery before buying a new one.
Tips for a smooth replacement
When you finally get the old battery out, it's a good idea to clean the terminals if there's any weird white crusty stuff (corrosion) on them. Use a bit of sandpaper or a wire brush.
Also, a little pro tip: sometimes, after you swap the battery, the car's computer still thinks the old, dead battery is in there. It might take a few driving cycles for the "Start/Stop Unavailable" message to go away. Some people use an OBDII scan tool to "register" the new battery, but on most 2020 Evoques, the Battery Management System (BMS) will eventually figure it out on its own after a few hours of driving.
Is it worth doing it yourself?
To be honest, finding the 2020 range rover evoque auxiliary battery location is the hardest part of the whole job. Once you've actually seen the battery with your own eyes, the actual replacement takes about ten minutes. If you take it to a dealership, they're probably going to charge you an arm and a leg for "diagnostic time" and labor, plus a markup on the battery itself.
Doing it yourself is a great way to save a couple hundred bucks. Just take your time with the plastic trim pieces. If a panel feels like it's going to snap, stop and check for hidden screws or clips. Land Rover loves to hide one tiny screw under a piece of rubber matting just to keep you on your toes.
Final thoughts
Modern cars are basically rolling computers, and the 2020 Range Rover Evoque is a prime example. Having an auxiliary battery tucked away in the cabin is just part of the deal when you drive a vehicle this advanced. It's annoying to find, sure, but once you know it's hiding in that passenger footwell area, you can get it swapped out and get back to enjoying that smooth Range Rover ride without any annoying dashboard warnings ruining the vibe.
Just remember: keep it 12V, stay away from the orange wires, and be gentle with those interior clips. Your Evoque (and your wallet) will thank you.