trunk problem with 2006 s430 help!
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s430
trunk problem with 2006 s430 help!
Hello
i bought a car from friend. i cant open trunk from fob. when i click the button i heard the click sound and its getting unlock but it doesnt lift up and when i try to lift by myself i need to force alot to open it with hands. also it doesnt stay at the top. when i leave it while open in few seconds its closing again. where might be the problem. actuator or lift supports ?
thanks in advance
i bought a car from friend. i cant open trunk from fob. when i click the button i heard the click sound and its getting unlock but it doesnt lift up and when i try to lift by myself i need to force alot to open it with hands. also it doesnt stay at the top. when i leave it while open in few seconds its closing again. where might be the problem. actuator or lift supports ?
thanks in advance
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First - do you have the power trunk open and close feature ? Many s430 only have a power trunk opener, only some have the Hyddraulic to both open and close the lid
If you have the power open and close , you need to determine if the pump has fluid
It's located near the battery fill the reservoir with pentosin chf11s
If you have the power open and close , you need to determine if the pump has fluid
It's located near the battery fill the reservoir with pentosin chf11s
Thread Starter
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s430
First - do you have the power trunk open and close feature ? Many s430 only have a power trunk opener, only some have the Hyddraulic to both open and close the lid
If you have the power open and close , you need to determine if the pump has fluid
It's located near the battery fill the reservoir with pentosin chf11s
If you have the power open and close , you need to determine if the pump has fluid
It's located near the battery fill the reservoir with pentosin chf11s
i think it does have power. because once i click to open trunk i hear something like its trying to open it but its not. so its only unlocking it not even moving. and then im opening it while using alot force.
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All w220 have a trunk lid that will power unlock with the remote button, or the button on the drivers door
But Only some w220 have a trunk lid that will both power open AND close - these have a hydraulic motor for the trunk lid- that will raise and lower the trunk lid . They also have a red button inside the trunk lid to close it using power. Do you have this button inside your trunk lid ?
If you have that button on the lid and you hear a motor noise like something is trying to work, your pump is likely out of fluid The hydraulic pump for the trunk lid is next to the battery . It is probably out of hydraulic fluid, the red arrow in this picture shows the fluid reservoir
But Only some w220 have a trunk lid that will both power open AND close - these have a hydraulic motor for the trunk lid- that will raise and lower the trunk lid . They also have a red button inside the trunk lid to close it using power. Do you have this button inside your trunk lid ?
If you have that button on the lid and you hear a motor noise like something is trying to work, your pump is likely out of fluid The hydraulic pump for the trunk lid is next to the battery . It is probably out of hydraulic fluid, the red arrow in this picture shows the fluid reservoir
Last edited by tusabes; Aug 28, 2016 at 08:52 PM.
Thread Starter
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s430
All w220 have a trunk lid that will power unlock with the remote button, or the button on the drivers door
But Only some w220 have a trunk lid that will both power open AND close - these have a hydraulic motor for the trunk lid- that will raise and lower the trunk lid . They also have a red button inside the trunk lid to close it using power. Do you have this button inside your trunk lid ?
If you have that button on the lid and you hear a motor noise like something is trying to work, your pump is likely out of fluid The hydraulic pump for the trunk lid is next to the battery . It is probably out of hydraulic fluid, the red arrow in this picture shows the fluid reservoir
But Only some w220 have a trunk lid that will both power open AND close - these have a hydraulic motor for the trunk lid- that will raise and lower the trunk lid . They also have a red button inside the trunk lid to close it using power. Do you have this button inside your trunk lid ?
If you have that button on the lid and you hear a motor noise like something is trying to work, your pump is likely out of fluid The hydraulic pump for the trunk lid is next to the battery . It is probably out of hydraulic fluid, the red arrow in this picture shows the fluid reservoir
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s430
btw trunk support lifts also doesnt work well.i barely open the trunk and im using alot of force to opening it and supports doesnt keep it tight. so it goes down again in few seconds. do i need to change lift supports or hydraulic fluid or both 
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Everyone has the button on the door - even cars with just power trunk unlock
Do you have the red button on the inside of the trunk lid ?
remove the right side trunk panel and add hydraulic fluid where the red arrow shows
You will need to add hydraulic fluid to make the trunk motor work
And you will need to replace the gas lift support struts if they are not holding the lid up
Do you have the red button on the inside of the trunk lid ?
remove the right side trunk panel and add hydraulic fluid where the red arrow shows
You will need to add hydraulic fluid to make the trunk motor work
And you will need to replace the gas lift support struts if they are not holding the lid up
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From what you are explaining, you definitely need the shocks. They are cheap from the dealer. Replace those first and then see if the problem persists and take it from there.
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Mercedes
The powered lids use gas struts as well as the hydraulic lift/lower motor
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s430
Everyone has the button on the door - even cars with just power trunk unlock
Do you have the red button on the inside of the trunk lid ?
remove the right side trunk panel and add hydraulic fluid where the red arrow shows
You will need to add hydraulic fluid to make the trunk motor work
And you will need to replace the gas lift support struts if they are not holding the lid up
Do you have the red button on the inside of the trunk lid ?
remove the right side trunk panel and add hydraulic fluid where the red arrow shows
You will need to add hydraulic fluid to make the trunk motor work
And you will need to replace the gas lift support struts if they are not holding the lid up
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s430
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From: Aurora, CO
06' W220 4MATIC (sold) 08'ml63 AMG
MY 06 S500 had a problem and it was that the hinges needed to be greased up. It started to open slow and one side of the trunk lid when closed was slightly misaligned. I used some white lithium/ Firearms grease I had. It had a small tip and could work it down into the hinges. Runs smooth now.
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From: Snowville, ID
W212 E350; W166 GLC300; W164 ML550; W164 ML63; W221 S65; W220 S430; Escalade ESV
Originally Posted by quarkww
filled up nothing changed
I had these exact symptoms You can search the threads for trouble shooting steps and solution
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From: Snowville, ID
W212 E350; W166 GLC300; W164 ML550; W164 ML63; W221 S65; W220 S430; Escalade ESV
Originally Posted by quarkww
yes it has that button inside the trunk lid for closing trunk automatic but also it doesnt. btw i changed struts so far. it lifts without forcing much with hands. and i also give it to benz service they said 2207500185 needto be change which is actuator. they asked 450$ for it. on ebay there iis 100$ used one. i will get and try to replace myself. so do u still thnik should i change the fluid in hydraulic pump. coz once i see that pump beside the battery. there is still fluid in it.
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s430
Super Member
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From: Snowville, ID
W212 E350; W166 GLC300; W164 ML550; W164 ML63; W221 S65; W220 S430; Escalade ESV
Originally Posted by quarkww
i replaced actuator nothing changed. so do u think the problem is hydraulic pump ?
Not necessary the hydraulic pump but first you need to give 12V to the hydraulic pump to see if there's any mechanical movement.
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From: Snowville, ID
W212 E350; W166 GLC300; W164 ML550; W164 ML63; W221 S65; W220 S430; Escalade ESV
quarkww, i found some old images here. You can disconnect the connector as pictured and give 12v to the plug with brown/white wire.
If the pump is working then the horizontal strut should move.
The relays in the 2nd picture is another component of raising/lowering function.
If the pump is working then the horizontal strut should move.
The relays in the 2nd picture is another component of raising/lowering function.
Thread Starter
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s430
quarkww, i found some old images here. You can disconnect the connector as pictured and give 12v to the plug with brown/white wire.
If the pump is working then the horizontal strut should move.
The relays in the 2nd picture is another component of raising/lowering function.
If the pump is working then the horizontal strut should move.
The relays in the 2nd picture is another component of raising/lowering function.
Super Member
Joined: Jun 2016
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From: Snowville, ID
W212 E350; W166 GLC300; W164 ML550; W164 ML63; W221 S65; W220 S430; Escalade ESV
Those struts are for holding the lid from gravity. Those are not for raising/closing lids. You need to remove the trunk passenger carpet piece to access the power horizontal strut.
