Mercedes 450SLC Ignition Switch Parts

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This unit may require modification to mount and additional parts for usage on some models. 1 per car.
1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980 Mercedes 450SLC
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Usually ships within 1-2 business days. Availability is not guaranteed.
$129.99
Reg
$135.41
List
$174.00
OEM
1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980 Mercedes 450SLC
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$71.99
Reg
$74.99
List
$82.00

Mercedes 450SLC ignition switch typically cost between $71.99 and $129.99.

How Do I Know If My Mercedes 450SLC Ignition Switch Is Failing?

A failing Mercedes 450SLC ignition switch can show itself in a few ways. Sometimes you turn the key and it just won't budge, or it feels like it’s fighting you. Other days, you may get into the car and nothing powers up—no radio, no dash lights—until you give the key a little twist or wiggle. The engine might refuse to crank, even though you know the battery’s good. You might notice odd flickering from the dash as the key moves. There’s also that loose, almost sloppy feeling when you turn from "off" to "on." Any of these signs could mean it’s time to look at the ignition switch before it leaves you sitting in a parking lot, waiting for a tow.

What Causes The Mercedes 450SLC Ignition Switch To Malfunction?

Several things can trip up a Mercedes 450SLC ignition switch. Over time, the constant in-and-out of the key grinds away at the inside parts. Dust and road grit can slip into the slot, slowly making it sticky or awkward to use. The switch relies on internal grease to turn smoothly, and that wears out after years under the dash. The electrical wires tucked behind the switch can corrode or loosen, especially on a car that’s seen a few winters. Even a badly cut or old key can do damage as it tumbles around inside. Eventually, all these small problems build up, and a once-reliable switch turns into just another old part that needs swapping.

Can I Replace The Mercedes 450SLC Ignition Switch Myself, Or Do I Need A Professional?

If you know your way around a wrench and don’t mind working under the dash, changing the Mercedes 450SLC ignition switch isn’t completely out of reach. You’ll need to take off trim panels, disconnect the battery, and get behind the steering wheel—sometimes a bit awkward, sometimes straightforward. It all depends on your comfort level. For many, the risk of cracking plastic trim or messing up the steering lock pushes them to a trusted shop. If you decide to tackle it yourself, a step-by-step repair manual and some patience help a lot. But if you have any doubt, bringing it to a pro might actually save you time and money.

What Should I Do If The Key Won’t Turn In The Mercedes 450SLC Ignition Switch?

If your key refuses to turn in the Mercedes 450SLC ignition switch, try this first—move the steering wheel back and forth while turning the key. Sometimes the lock gets stuck, especially if the wheels are turned hard against the curb. Forcing the key never pays off; you’re just asking for it to snap. A dab of graphite powder in the lock sometimes does the trick. Oil is a no-go as it gums things up. If you’ve got a backup key, give it a try, since a worn key can get stuck. Still stuck after all that? At that point, you’re probably dealing with worn-out tumblers inside, or the switch may just be toast.

How Much Does It Cost To Replace The Mercedes 450SLC Ignition Switch?

Swapping out a Mercedes 450SLC ignition switch isn’t always cheap, but it varies. Most shops will charge between two hundred and five hundred dollars, with the price leaning higher at dealerships. Do-it-yourself types can buy just the switch for somewhere in the seventy to one hundred eighty dollar range, sometimes less if you catch a sale. Labor makes up a good chunk of the full price since it can be a fiddly job. If things go sideways during a home repair—broken trim, a stuck lock cylinder—you might end up calling a mechanic anyway, which might cost extra to clean up the mess.

Looking For A Mercedes 450SLC Ignition Switch?

Shopping with us for your Mercedes 450SLC ignition switch means quick shipping and customer support that actually listens. We keep our prices fair and the quality dependable, so your car gets back on the road where it belongs. If the part isn’t a perfect match, returns are simple. At AutohausAZ, we work hard to take the hassle out of finding the right ignition switch for your classic Mercedes.