Mercedes 300TD Ignition Lock Housing Parts

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Mercedes 300TD
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Ignition
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Ignition Lock Housing
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This kit contains a new ignition lock housing with electrical switch along with a new ignition lock cylinder and keys for your diesel powered Mercedes.
1979, 1980, 1981, 1982, 1983, 1984, 1985 Mercedes 300TD, 300TDT
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Leaves closest warehouse today if ordered before 2 PM MST.
$194.48
Reg
$202.58
List
$405.00
Also may need 1234620479 ignition lock cylinder. 1 per car.
1979, 1980, 1981, 1982, 1983, 1984, 1985 Mercedes 300TD, 300TDT
Ships Today
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Leaves closest warehouse today if ordered before 2 PM MST.
$169.99
Reg
$177.07
List
$157.00
Please verify appearance of existing cover prior to ordering. 1 per car.
1979, 1980, 1981, 1982, 1983, 1984, 1985 Mercedes 300TD, 300TDT
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Leaves closest warehouse today if ordered before 2 PM MST.
$40.99
Reg
$42.70
List
$47.50

Mercedes 300TD ignition lock housing typically cost between $40.99 and $194.48.

What Are Signs The Mercedes 300TD Ignition Lock Housing Needs Replacement?

It often starts subtle—a key that feels gritty or snags when you turn it. After a while, the key may refuse to turn at all. You might notice the key slips out with the engine still running, or it just won’t come out of the housing. Sometimes the steering wheel locks up, or you’ll have power only in certain key positions, not all. These issues hint at a worn or failing ignition lock housing. Left alone, you could find yourself stuck in a parking lot or fighting with the steering column. Catching these early helps keep things simple and avoids bigger repairs down the line.

How Do I Remove The Mercedes 300TD Ignition Lock Housing?

Start by disconnecting the negative battery cable—don’t skip this step. Next, pull the trim panels from around the steering column so you have room to work. Stick the key in and turn it to the first position. That’s usually when you can press a small metal tab inside the lock cylinder with a pick or the special tool Mercedes once included in the toolkit. The cylinder should slide right out. After that, locate and remove the mounting screws holding the housing to the column. Some models include tamper-resistant screws or extra deterrents, so check for these as you go. Knowing what’s inside ahead of time saves a lot of head-scratching.

What Causes Mercedes 300TD Ignition Lock Housing Failure?

Years of twisting the key can wear the inside of the housing. Grit and dust, sneaking in on your keys or from the air, end up making things rougher. Some owners think a little grease will help, yet most home lubes collect dirt and gum up the works worse. Bent or worn keys can stress the tumblers, sometimes snapping pieces or making it impossible to turn. Cold snaps can make moisture freeze inside too, adding to sticking or outright locking the ignition. Forcing it only compounds the damage.

Can I Reuse My Old Key With A New Mercedes 300TD Ignition Lock Housing?

You can keep your old key if you get the new housing re-keyed to match it. If not, you’ll end up with two keys: the old one for the doors and a brand-new one for the ignition. Many owners order a lock cylinder coded to their car’s VIN, letting them stick with their familiar key. Dealerships and seasoned locksmiths can handle this, but expect to show registration and ID. It’s worth the extra step to avoid the hassle of a mismatched set of keys jingling in your pocket.

What Tools Are Needed To Replace The Mercedes 300TD Ignition Lock Housing?

Grab a flat-head screwdriver and a set of metric sockets. A pick tool or thin wire helps release those hidden tabs. Some housings need a dedicated tool to get everything loose; check before you start. Torx drivers are a must for the anti-theft bolts Mercedes used on some years. If the housing hides behind the wheel, a puller makes the job easier. Keep a tray nearby for all the tiny screws and clips—nothing brings a project to a halt like searching for a part lost in the carpet.

Why Choose AutohausAZ For Your Mercedes 300TD Ignition Lock Housing?

Fixing your own Mercedes should feel rewarding, not complicated. That’s why AutohausAZ keeps things down to earth. We stock quality ignition lock housings for the Mercedes 300TD, along with almost everything else your classic might need. The prices are honest—if you compare, you'll notice the difference—and with discounts built in, you don’t need to hunt for coupon codes. Orders ship quick from Phoenix, so your car’s downtime shrinks. Need to return something? We keep it simple, no drawn-out process. Our crew knows cars and is ready to walk you through questions by chat or phone. Years in the business have taught us that what matters most is less hassle and more time with your keys in the ignition, headed wherever you need to go. Give us a shot and see how easy it can be to keep your Mercedes running—and running right.