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door lock issue

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Old 09-28-2016, 08:35 PM
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CL55, S550, 450SL
door lock issue

My buddy has a 2011, S550 and when you lock the doors with the key fob, the horn beeps 3 times, the door lock pins go down but if you pull the door handle from the outside, the door will open as if it were not locked. Anyone ever have this issue or can someone help me out diagnosing the problem? Thanks
Old 09-29-2016, 07:56 AM
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Yep the door lock actuator is faulty!!
Old 09-29-2016, 08:03 AM
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2015 S550
Originally Posted by MagCL
My buddy has a 2011, S550 and when you lock the doors with the key fob, the horn beeps 3 times, the door lock pins go down but if you pull the door handle from the outside, the door will open as if it were not locked. Anyone ever have this issue or can someone help me out diagnosing the problem? Thanks
It sounds like he has Keyless Go. Mine always does that....except for the beeping when locking.
Old 09-29-2016, 08:53 AM
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300sd,,s550,& 300D sold,s320 sold
Sound like keyless go to me also...Have him lock the car & walk away with the key 50ft. or so..Then you try to open the door....no open...(( ]keyless to go )).
Old 10-01-2016, 09:58 AM
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Looks like its the keyless go. Once you walk approximately 50' away, it wont open unless you unlock the doors with the key fob. Thanks for the help guys!!
Old 10-01-2016, 09:46 PM
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This has to be the funniest thread I have seen in a while ... lol

Pluto dude... if the lock pin on top of door goes down the lock is engaged- they are connected mechanically
Old 10-02-2016, 03:37 AM
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Funny thread. Def keyless go. I just got a really funny mental image of someone keep walkin up to door over and over gettin mad just cuz of keyless go

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