Mercedes 300CD Headlight Bulb Parts

Showing 3 out of 3 part(s) found in our catalog.

Narrow Down Your Search By...
Filter search results specific to your vehicle.
Keyword
Keyword
Mercedes 300CD Headlight Bulb
Category
Select category below to view parts.
Can't Find What You Need?
Mon-Fri 8-4 MST/PST (Arizona Time)
Contact Us
Sort By:
For conversion of 6014 and 6024 style 7 inch round sealed beam to H4 Halogen insert type assemblies.
1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985 Mercedes 300CD, 300CDT
Ships Tomorrow
Ships Tomorrow Information Icon
Leaves closest warehouse tomorrow.
$61.99
Reg
$64.57
List
$66.30
OEM
1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985 Mercedes 300CD, 300CDT
Ships Tomorrow
Ships Tomorrow Information Icon
Leaves closest warehouse tomorrow.
$11.09
Reg
$11.55
List
$105.92
1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985 Mercedes 300CD, 300CDT
Ships Tomorrow
Ships Tomorrow Information Icon
Leaves closest warehouse tomorrow.
$4.39
Reg
$4.57
List
$2.57

Mercedes 300CD headlight bulb typically cost between $4.39 and $61.99.

What Size Headlight Bulb Does The Mercedes 300CD Use?

When it's time to replace your Mercedes 300CD headlight bulb, you'll want to look for the H4 size. This bulb covers both the low and high beams for this model. To be sure, it’s always a good idea to double-check with your owner’s manual or take a quick look at your existing bulb. Using the correct size helps with proper fit and keeps everything working safely. Installing the wrong type can lead to electrical headaches or even trouble fitting your new bulb into place.

How Do You Change The Headlight Bulb On A Mercedes 300CD?

Changing the Mercedes 300CD headlight bulb is fairly straightforward. Start by popping the hood and finding the back of the headlight assembly. For safety, disconnect the negative terminal from the battery. Next, remove the rubber dust cover sitting behind the headlight. You'll see a ring or a clip holding the bulb—twist or unclip it and gently remove the old bulb. Put the new one in (be careful not to touch the glass), secure it, and reassemble everything. Reconnect the battery and switch on the headlights to make sure everything’s working. You don’t need any special tools, but handling the bulb with care goes a long way.

What Are The Symptoms Of A Failing Headlight Bulb?

If you’re wondering whether your Mercedes 300CD headlight bulb is on its way out, keep an eye out for telltale signs like a dimmer light, flickering, or a bulb that’s completely dead. Sometimes, you might even notice the color shift to a yellowish hue before it fails. These changes are easy to miss during the day, so it helps to check your headlights by parking in front of a wall or in your garage every now and then. If anything seems off, it’s best to swap the bulb before you’re left without proper visibility at night.

Are LED Or Halogen Bulbs Better For The Mercedes 300CD?

Many people ask whether it’s worth upgrading to LED instead of the usual halogen Mercedes 300CD headlight bulb. Halogen bulbs stay true to the original style and always fit as intended. LEDs, on the other hand, use less energy, produce a brighter and whiter light, and don’t get as hot. But not all LED kits are made for older cars, and they might not always fit right or focus the beam as nicely. If you’re thinking about switching, look for an LED kit made for the 300CD and check to see if they’re legal in your area.

Why Does The New Headlight Bulb Not Work After Replacement?

If your new Mercedes 300CD headlight bulb isn't turning on, there are a few things to check. The usual culprits are loose wiring or corroded contacts where the bulb plugs in. Sometimes, a blown fuse or a bad relay can also be at fault. Don’t forget to make sure the new bulb itself isn’t defective—it happens! If you’ve run through the basics and still have trouble, a multimeter can help you check for power and track down the issue, often leading right to a worn-out connector or another simple fix.

Why Pay More For A Mercedes 300CD Headlight Bulb?

At AutohausAZ, there’s no need to pay top dollar for a Mercedes 300CD headlight bulb. Our prices are far below what you’ll find at the dealer, and we ship fast so you’re not waiting around for days. If you order the wrong bulb by accident, our return process is quick and easy. Shopping with us means you save money and get back on the road sooner—simple as that.