05 S430 4matic Key Fob / Actuator question .
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2005 s430 matic
05 S430 4matic Key Fob / Actuator question .
O5 S430 4matic
Can someone tell me if the door actuators are capable of not allowing air to flow through to the door lock ? Or is the the air that is sent from the PSE pump automatically flow to the lock ?
I have a key fob issue and trying to figure out where the problem lies . I’ve also noticed the air coming into the actuator Is more forceful (both positive and negative ) when the dash lock / unlock button is pressed Vs. the key fob . This is a live observation that’s very obvious to hear . Hence the locks work with dash buttons and not by the key . I’ve tested the key for RF signal (iPhone ) and all good . Have the red led so that works as well and the key opens the trunk . Also don’t see any visible reasons where it’s leaking (have the back panel off ) but I can certainly hear the leak . Where is the most usual place where they leak that’s not visible damage .
Thanks for any input !
Can someone tell me if the door actuators are capable of not allowing air to flow through to the door lock ? Or is the the air that is sent from the PSE pump automatically flow to the lock ?
I have a key fob issue and trying to figure out where the problem lies . I’ve also noticed the air coming into the actuator Is more forceful (both positive and negative ) when the dash lock / unlock button is pressed Vs. the key fob . This is a live observation that’s very obvious to hear . Hence the locks work with dash buttons and not by the key . I’ve tested the key for RF signal (iPhone ) and all good . Have the red led so that works as well and the key opens the trunk . Also don’t see any visible reasons where it’s leaking (have the back panel off ) but I can certainly hear the leak . Where is the most usual place where they leak that’s not visible damage .
Thanks for any input !
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Joined: May 2023
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S55
O5 S430 4matic
Can someone tell me if the door actuators are capable of not allowing air to flow through to the door lock ? Or is the the air that is sent from the PSE pump automatically flow to the lock ?
I have a key fob issue and trying to figure out where the problem lies . I’ve also noticed the air coming into the actuator Is more forceful (both positive and negative ) when the dash lock / unlock button is pressed Vs. the key fob . This is a live observation that’s very obvious to hear . Hence the locks work with dash buttons and not by the key . I’ve tested the key for RF signal (iPhone ) and all good . Have the red led so that works as well and the key opens the trunk . Also don’t see any visible reasons where it’s leaking (have the back panel off ) but I can certainly hear the leak . Where is the most usual place where they leak that’s not visible damage .
Thanks for any input !
Can someone tell me if the door actuators are capable of not allowing air to flow through to the door lock ? Or is the the air that is sent from the PSE pump automatically flow to the lock ?
I have a key fob issue and trying to figure out where the problem lies . I’ve also noticed the air coming into the actuator Is more forceful (both positive and negative ) when the dash lock / unlock button is pressed Vs. the key fob . This is a live observation that’s very obvious to hear . Hence the locks work with dash buttons and not by the key . I’ve tested the key for RF signal (iPhone ) and all good . Have the red led so that works as well and the key opens the trunk . Also don’t see any visible reasons where it’s leaking (have the back panel off ) but I can certainly hear the leak . Where is the most usual place where they leak that’s not visible damage .
Thanks for any input !
Hello, inside white piece there is rubber diaphram which moves when PSE pump operates push/suck's air. If you look around there is small hole Mine was leaking there, therefore i just used screw to cover it. It's kinda difficult to descibe, since i don't have any pictures. Also white part could leak itself, since the clips around breaks because of age.
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2005 s430 matic
Still stumped
Thanks for the reply. I have taken apart the PSE pump several times , replaced the fins and blown out the tubes with air .
I plugged the tube going to the RR actuator and like I mentioned , using the dash buttons , the other 3 doors now work . Still the key fob does not . The air definitely is more powerful using the dash buttons vs. the key fob which is a total mystery at this point . If I barely assist the button up or down it works . So I somehow need to figure out how it’s possible the airflow is different. Makes zero sense to me !
I plugged the tube going to the RR actuator and like I mentioned , using the dash buttons , the other 3 doors now work . Still the key fob does not . The air definitely is more powerful using the dash buttons vs. the key fob which is a total mystery at this point . If I barely assist the button up or down it works . So I somehow need to figure out how it’s possible the airflow is different. Makes zero sense to me !
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Joined: May 2023
Posts: 78
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S55
Thanks for the reply. I have taken apart the PSE pump several times , replaced the fins and blown out the tubes with air .
I plugged the tube going to the RR actuator and like I mentioned , using the dash buttons , the other 3 doors now work . Still the key fob does not . The air definitely is more powerful using the dash buttons vs. the key fob which is a total mystery at this point . If I barely assist the button up or down it works . So I somehow need to figure out how it’s possible the airflow is different. Makes zero sense to me !
I plugged the tube going to the RR actuator and like I mentioned , using the dash buttons , the other 3 doors now work . Still the key fob does not . The air definitely is more powerful using the dash buttons vs. the key fob which is a total mystery at this point . If I barely assist the button up or down it works . So I somehow need to figure out how it’s possible the airflow is different. Makes zero sense to me !
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2005 s430 matic
I know it makes zero sense that’s why I’ve thought of other scenarios like the actuators being able to tell the difference and block airflow to the locks . My thinking was maybe an RF signal issue or an alarm fault and who the F knows fault lol .
I pulled apart the pump again last night and checked for wear of the fins which I first replaced when I got the car as I knew upfront the locks didn’t work . I had no idea at the time that the rear SAM was water logged and finally crapped out during a spring soaked season that flooded the car . I fortunately found an exact replacement on eBay for $110 and replaced everything and now have full functionality except lock /unlock key fob .
Well next is actuator rebuilds or replacements!
I know the RR leaks as well as the drivers due to an obvious leaking hiss . However again , it’s louder with dash vs. key .
Bizarre !
I pulled apart the pump again last night and checked for wear of the fins which I first replaced when I got the car as I knew upfront the locks didn’t work . I had no idea at the time that the rear SAM was water logged and finally crapped out during a spring soaked season that flooded the car . I fortunately found an exact replacement on eBay for $110 and replaced everything and now have full functionality except lock /unlock key fob .
Well next is actuator rebuilds or replacements!
I know the RR leaks as well as the drivers due to an obvious leaking hiss . However again , it’s louder with dash vs. key .
Bizarre !
Member
Joined: May 2023
Posts: 78
Likes: 13
S55
I know it makes zero sense that’s why I’ve thought of other scenarios like the actuators being able to tell the difference and block airflow to the locks . My thinking was maybe an RF signal issue or an alarm fault and who the F knows fault lol .
I pulled apart the pump again last night and checked for wear of the fins which I first replaced when I got the car as I knew upfront the locks didn’t work . I had no idea at the time that the rear SAM was water logged and finally crapped out during a spring soaked season that flooded the car . I fortunately found an exact replacement on eBay for $110 and replaced everything and now have full functionality except lock /unlock key fob .
Well next is actuator rebuilds or replacements!
I know the RR leaks as well as the drivers due to an obvious leaking hiss . However again , it’s louder with dash vs. key .
Bizarre !
I pulled apart the pump again last night and checked for wear of the fins which I first replaced when I got the car as I knew upfront the locks didn’t work . I had no idea at the time that the rear SAM was water logged and finally crapped out during a spring soaked season that flooded the car . I fortunately found an exact replacement on eBay for $110 and replaced everything and now have full functionality except lock /unlock key fob .
Well next is actuator rebuilds or replacements!
I know the RR leaks as well as the drivers due to an obvious leaking hiss . However again , it’s louder with dash vs. key .
Bizarre !
I would also say that this is electrical problem. You said that rear SAM was replaced because of water. Usually those things needs to be programmed after replacement. Maybe that's why you have strange problems. Also would scan for any faults in car. Suggesting STAR.
Last edited by suf3r; Aug 15, 2023 at 01:56 PM. Reason: update
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2005 s430 matic
Yea who knows ! I’ve seen another reply from another BenZ site that no way can different voltage , pressure , come from a Fob vs. Dash button . Everything else works fine that did not prior to the new SAM .
I do have a MB scanner but it only shows faults of “timing out “ .
Just going to repair the actuators and go from there . BTW is the soft close feature part of the actuator assembly ? Hard to tell what’s what while it’s still in the door . I just repaired the Parking brake system (actuator assembly and cables to the brake shoes ) on my BMW x5 . That was also fun lol !
I do have a MB scanner but it only shows faults of “timing out “ .
Just going to repair the actuators and go from there . BTW is the soft close feature part of the actuator assembly ? Hard to tell what’s what while it’s still in the door . I just repaired the Parking brake system (actuator assembly and cables to the brake shoes ) on my BMW x5 . That was also fun lol !
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2005 s430 matic
Update
Well pulled apart the drivers door panel apart today and no obvious signs of a blown apart actuator but I did not have time to remove it .
One thing that may mean something is that the dash unlocks the buttons and you can not push the button back down until it times out . When using the key it almost brings the lock up and you can push it right down without resistance. So somehow the negative pressure is not working as well with the key !!! Odd if it were leaking that bad you would think it would not hold pressure .
I’ll have to peruse through some threads again as I know I’ve read something to this effect on the last few weeks . I should also mention the soft close now works as well !
what a pita lol
One thing that may mean something is that the dash unlocks the buttons and you can not push the button back down until it times out . When using the key it almost brings the lock up and you can push it right down without resistance. So somehow the negative pressure is not working as well with the key !!! Odd if it were leaking that bad you would think it would not hold pressure .
I’ll have to peruse through some threads again as I know I’ve read something to this effect on the last few weeks . I should also mention the soft close now works as well !
what a pita lol
Last edited by Benznew2005; Aug 17, 2023 at 02:41 PM.
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