BMW 850CI Tail Light Bulb Parts
Showing 13 out of 13 part(s) found in our catalog.
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BMW 850CI tail light bulb typically cost between $1.19 and $3.29.
What Is The Correct Bulb Type For BMW 850CI Tail Light Bulb Replacement?
If you’re looking to replace the BMW 850CI tail light bulb, most models use a standard 1157 dual-filament bulb for both the tail and brake lights. Still, there can be some variation depending on the year and where the car was sold, so it’s always a good idea to check your owner’s manual or look at the old bulb first. When in doubt, ask your parts supplier or dealer to confirm the right fit. This way, you’ll know the new BMW 850CI tail light bulb matches up perfectly with your car’s setup.
How Do I Access The BMW 850CI Tail Light Bulb For Replacement?
Swapping out the BMW 850CI tail light bulb is straightforward once you know where to look. Pop open the trunk and pull back the liner or cover sitting behind the tail light assembly—there are usually a few small plastic clips you’ll need to pry up carefully. With the area uncovered, twist the bulb socket counterclockwise to remove it. Swap in the new BMW 850CI tail light bulb, making sure it’s seated firmly. Before you put the liner back, check your tail lights to be sure everything’s working. Once you’re all set, close up the trunk and you’re ready to go.
Why Does My BMW 850CI Tail Light Bulb Keep Burning Out?
If you keep having to replace your BMW 850CI tail light bulb, there might be more going on under the surface. Sometimes, electrical issues like a faulty ground or unstable voltage can cause bulbs to burn out faster. Moisture inside the tail light housing is another common culprit, so check for any cracks or worn gaskets that could be letting water in. It’s also a good move to inspect the socket for corrosion. And, while it may be tempting to go with the cheapest option, a quality bulb from a reputable brand will usually last longer and keep your 850CI’s tail lights shining bright.
Is It Worth Upgrading To LED Tail Light Bulbs In The BMW 850CI?
Switching to LED bulbs for your BMW 850CI tail light bulb comes with some clear perks—longer life, faster response time, and lower power usage, just to name a few. That said, make sure the LEDs you choose are compatible with your car’s system. Some BMWs will give you a “bulb out” warning when LEDs are installed because the resistance is lower than regular bulbs. You can address this by adding a resistor or going with “canbus” style LEDs. Plenty of drivers feel the clean look and improved visibility of LEDs are worth the extra effort, especially on a classic like the 850CI.
How Do I Fix A “Tail Light Out” Warning On My BMW 850CI?
Seeing a “tail light out” message even after swapping the BMW 850CI tail light bulb? Start by making sure the bulb is installed correctly and is the right type. Take a look at the socket for any corrosion and clean it up if needed—an electrical contact cleaner does the job well. If the warning sticks around, check the wiring and connectors for any signs of fraying or damage. Tracking down the cause early can save you plenty of frustration down the line.
Need A BMW 850CI Tail Light Bulb Fast?
AutohausAZ makes finding the right BMW 850CI tail light bulb easy. You’ll find fair prices, quick shipping, and a return policy designed to be hassle-free. Order with confidence, and your 850CI will be back on the road before you know it.

