04, S500 Strut Replace Issue
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Super Member
Joined: Nov 2005
Posts: 790
Likes: 17
From: West Palm Beach
2004 S500
04, S500 Strut Replace Issue
I changed the front right that was bad with a new Arnott...but did not did connect the battery. After installing the strut, lowered the car...suspension acted normally.
Suddenly I noticed that my door locks and trunk release would not work...nor would the soft close function on the doors. I have to use the blade key to lock/unlock the car as well as open the trunk. Also the rear shade is stuck in the up position.
All the fuses look good.
Should I disconnect and re connect the battery or any other suggestions?
Suddenly I noticed that my door locks and trunk release would not work...nor would the soft close function on the doors. I have to use the blade key to lock/unlock the car as well as open the trunk. Also the rear shade is stuck in the up position.
All the fuses look good.
Should I disconnect and re connect the battery or any other suggestions?
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Mercedes
I changed the front right that was bad with a new Arnott...but did not did connect the battery. After installing the strut, lowered the car...suspension acted normally.
Suddenly I noticed that my door locks and trunk release would not work...nor would the soft close function on the doors. I have to use the blade key to lock/unlock the car as well as open the trunk. Also the rear shade is stuck in the up position.
All the fuses look good.
Should I disconnect and re connect the battery or any other suggestions?
Suddenly I noticed that my door locks and trunk release would not work...nor would the soft close function on the doors. I have to use the blade key to lock/unlock the car as well as open the trunk. Also the rear shade is stuck in the up position.
All the fuses look good.
Should I disconnect and re connect the battery or any other suggestions?
Thread Starter
Super Member
Joined: Nov 2005
Posts: 790
Likes: 17
From: West Palm Beach
2004 S500
Agreed...did that with no result.
My story is similar to others except as follows: I took my 2004 S-500 in for a right front strut replacement and everything worked fine. When I picked it up I immediately noticed the door and trunk locks would not work. Nothing was done except to change the strut. The shop is working with me to find a replacement pump. The first one they found would not work...sent it back and ordered another. The second new pump hasn't come in yet. Any ideas how changing a strut caused my locks and PSE Pump not to work? BTW...20 Amp Fuse under rear seat is good and I removed it for a few minutes with no change. I also disconnected the battery for 30 seconds with no effect. I'm stumped.
My story is similar to others except as follows: I took my 2004 S-500 in for a right front strut replacement and everything worked fine. When I picked it up I immediately noticed the door and trunk locks would not work. Nothing was done except to change the strut. The shop is working with me to find a replacement pump. The first one they found would not work...sent it back and ordered another. The second new pump hasn't come in yet. Any ideas how changing a strut caused my locks and PSE Pump not to work? BTW...20 Amp Fuse under rear seat is good and I removed it for a few minutes with no change. I also disconnected the battery for 30 seconds with no effect. I'm stumped.
Last edited by sprink49; Apr 29, 2021 at 11:57 AM.
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Joined: Dec 2012
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From: Ball Ground, GA (N of Atlanta)
2003 S500 2007 GL450
Any traces of corrosion on the fuse terminals? Did you actually check the fuse to see if it had happened to blow? I would suggest that disconnecting/reconnecting the battery usually causes more grief than it solves.
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Mercedes
It’s a 20 year old car and sometimes faults happen that are not connected to the work performed . Mechanics are always blamed for causing another problem when a car is brought in but usually it’s just a coincidence something else decided to stop working
the two systems (strut and pse) are not connected in any way , besides generally being connected to the main electrical system . Working on one should not affect the other . Sounds like it was just bad timing for the pse pump or pse pump controller to die
the two systems (strut and pse) are not connected in any way , besides generally being connected to the main electrical system . Working on one should not affect the other . Sounds like it was just bad timing for the pse pump or pse pump controller to die
Thread Starter
Super Member
Joined: Nov 2005
Posts: 790
Likes: 17
From: West Palm Beach
2004 S500
Thanks Wally...and yes, I actually pulled the fuse a few times and saw that it was good. No visible corrosion.
Shop has ordered another PSE Pump to see if it will work. Coincidently, there was a very nice '05 S55 AMG sitting next to mine with similar issues.
I'm getting conflicting stories whether these PSE pumps are "Plug and Play" or if programming is required.
Shop has ordered another PSE Pump to see if it will work. Coincidently, there was a very nice '05 S55 AMG sitting next to mine with similar issues.
I'm getting conflicting stories whether these PSE pumps are "Plug and Play" or if programming is required.
Last edited by sprink49; Apr 29, 2021 at 02:13 PM.
Thread Starter
Super Member
Joined: Nov 2005
Posts: 790
Likes: 17
From: West Palm Beach
2004 S500
It’s a 20 year old car and sometimes faults happen that are not connected to the work performed . Mechanics are always blamed for causing another problem when a car is brought in but usually it’s just a coincidence something else decided to stop working
the two systems (strut and pse) are not connected in any way , besides generally being connected to the main electrical system . Working on one should not affect the other . Sounds like it was just bad timing for the pse pump or pse pump controller to die
the two systems (strut and pse) are not connected in any way , besides generally being connected to the main electrical system . Working on one should not affect the other . Sounds like it was just bad timing for the pse pump or pse pump controller to die
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MBWorld Fanatic!
Joined: Dec 2012
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From: Ball Ground, GA (N of Atlanta)
2003 S500 2007 GL450
One of the best friends I have ever had had a quip that I still love - "Not being hampered by facts, I can speak freely on the subject."
I have no personal experience with this system, but this is what I remember from a few years of casual reading on the subject. Take it for what it is worth.
The pump - the core mechanism that moves the air - is basically the same for all cars. The PSE System is programmed for the options that are installed on that particular car. This means that if the problem is with the motor, the impeller, etc., you can disassemble the pump system by pulling the valve and hose connection section (the part that is programmed) and replacing the motor, impeller, etc. This also prevents you from mixing up the hose connections. BTW - the system uses both positive and negative pneumatic pressure.
You can not just change the entire pump system that is in the sound-absorbing box without some programming using DAS.
I have no personal experience with this system, but this is what I remember from a few years of casual reading on the subject. Take it for what it is worth.
The pump - the core mechanism that moves the air - is basically the same for all cars. The PSE System is programmed for the options that are installed on that particular car. This means that if the problem is with the motor, the impeller, etc., you can disassemble the pump system by pulling the valve and hose connection section (the part that is programmed) and replacing the motor, impeller, etc. This also prevents you from mixing up the hose connections. BTW - the system uses both positive and negative pneumatic pressure.
You can not just change the entire pump system that is in the sound-absorbing box without some programming using DAS.
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Thread Starter
Super Member
Joined: Nov 2005
Posts: 790
Likes: 17
From: West Palm Beach
2004 S500
One of the best friends I have ever had had a quip that I still love - "Not being hampered by facts, I can speak freely on the subject."
I have no personal experience with this system, but this is what I remember from a few years of casual reading on the subject. Take it for what it is worth.
The pump - the core mechanism that moves the air - is basically the same for all cars. The PSE System is programmed for the options that are installed on that particular car. This means that if the problem is with the motor, the impeller, etc., you can disassemble the pump system by pulling the valve and hose connection section (the part that is programmed) and replacing the motor, impeller, etc. This also prevents you from mixing up the hose connections. BTW - the system uses both positive and negative pneumatic pressure.
You can not just change the entire pump system that is in the sound-absorbing box without some programming using DAS.
I have no personal experience with this system, but this is what I remember from a few years of casual reading on the subject. Take it for what it is worth.
The pump - the core mechanism that moves the air - is basically the same for all cars. The PSE System is programmed for the options that are installed on that particular car. This means that if the problem is with the motor, the impeller, etc., you can disassemble the pump system by pulling the valve and hose connection section (the part that is programmed) and replacing the motor, impeller, etc. This also prevents you from mixing up the hose connections. BTW - the system uses both positive and negative pneumatic pressure.
You can not just change the entire pump system that is in the sound-absorbing box without some programming using DAS.
