Mercedes 420SEL Ignition Lock Housing Parts
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Based on industry averages you can expect to pay between $26.99 and $40.99 for a Mercedes 420SEL ignition lock housing.
How Do I Remove The Mercedes 420SEL Ignition Lock Housing?
Start by disconnecting the battery. This cuts power so you don’t set off any airbags or short something out. Remove the lower dash panel and the steering column covers to uncover the ignition lock housing. Put the key in the ignition and turn it to the first or second position. This lets you push in the retaining pin or lever, depending on your model. Some will have a release slot or hole—use a small pick or screwdriver. Unscrew the main lock housing bolt under the column and slide the lock out. If the assembly feels stuck, double-check for hidden screws. With older or stuck units, a special tool or a bit more force may be needed, but don't rush. Be gentle—damaging parts here gets expensive fast. If the key will not turn, or if something’s locked up, drilling is a last resort. If this feels out of your comfort zone, bringing in a locksmith or pro with the right tools is always smart.
Why Won’t My Key Turn In The Mercedes 420SEL Ignition Lock Housing?
A stuck key is more common than many people think. The culprit is often a worn-down key or a lock full of old dirt. If your steering wheel is turned to one side hard, it can jam the lock. Try wiggling the steering wheel left and right while turning the key. If that doesn't free it up, the tumblers inside may have failed, especially on higher-mileage cars. Spraying in a bit of lock lubricant—not WD-40, but the kind made for locks—sometimes gets things moving. Never force the key or you risk snapping it. If none of these work, you’ll likely need to replace or repair the lock housing itself.
What Signs Indicate That The Mercedes 420SEL Ignition Lock Housing Is Failing?
If the key is getting harder to turn, that's the first warning. Sticking, rough spots, or the key not seating all the way can hint at problems. The key pulling out while driving, or the ignition feeling wobbly or loose, is a red flag. Sometimes the dash lights or radio won't come on until you wiggle the key just right. In worse cases, the car refuses to start even though the key turns. Don’t ignore early signs; getting stranded is a real risk if the lock fails for good.
Can I Rebuild Or Repair The Mercedes 420SEL Ignition Lock Housing?
It’s possible, but not simple. With the right tools, and patience, you can take the lock apart and swap in new tumblers, springs, or faceplates. These parts are available from specialty sources. Take photos as you go—there are a lot of tiny pieces. Most people opt to replace the whole lock housing to save time and avoid headaches. If your old lock has been damaged by force or broken keys, replacement is your safer bet. Always match the security electronics if your car has them, or you’ll be in for extra work.
Where Do I Find Replacement Parts For The Mercedes 420SEL Ignition Lock Housing?
Authorized Mercedes dealers carry the parts, but prices can run high. Online sites and specialty Mercedes classic parts suppliers are solid alternatives. You can sometimes find complete assemblies or repair kits from these sources. Salvage yards may have used parts, but condition will vary, and wear is a concern. Some aftermarket options exist, but be sure to check if they fit your model and year—there are small differences between years. Always use your VIN when ordering to get the right match.
Looking For The Best Price On A Mercedes 420SEL Ignition Lock Housing?
At AutohausAZ, we know looking for a Mercedes 420SEL ignition lock housing shouldn’t be a hassle. You don’t want to spend hours looking or pay dealer prices. Here, you get honest pricing, fast shipping, and real help if you run into any issues. Order your part and we ship it quick—usually the same day. If you get the wrong part, our returns process is clear and simple. We keep the whole process stress-free because we’re car folks too, and we know how important it is to get your Mercedes back on the road. From new housings to other parts, trust us for quality, speed, and prices you can’t get anywhere else.

