Mercedes power seat control module removal

[@DonRaul99]

Thank you very much! Was really helpful to see how all the connectors are disengaged. I just replaced my electric motor and finally its working again. 👍

[@ronburns268]

The video gave me confidence, but the 2003 C320 w203 is different. All you need is one tool, a T40. Move the seat all the way up and a little forward... if you can! The side shield does not have a screw in it, just a small post, and i broke mine :-( . You must remove the seat belt from the seat so remove the cover over it at the base of seat side cover, then with a T40 for the seatbelt, lift the post off of the back of the seat where this video shows a screw and move it forward. It comes right off. Cut the wire tie that holds the wires to the side of the clip holding the module in place, get to it from the back, remove the cables, the front will only go in one way and mine only 4 plugs in use on the back with the orange being toward the center. The module is held in place by the plastic clips on both sides of the module. See parts 18 and 19 in this image.. www.mbworld.org/forums/attachments/c-class-w203/176119d1266156854-help-seat-adjusters.gif , lift of the back part of the clip and the module comes loose. Remove from the car. Careful not to break these side clips. Remove the side clips from the old unit, there are small tabs at the pivot point, and put them on the new one. They should click into place. Note the the clips have 2 posts for guiding into the seat frame bracket and the module has 2 flat post which also help with placement and retention. Install in reverse order.

[@fupabox]

excellent write up and info...it will help lots of people... much appreciated

[@KhangTruong-fi8is]

Why cut the wire

[@christopherslaughter2263]

A couple of pearls.. 1. Always disconnect your battery terminals before you do shit like this. I don't care if the battery is dead or not. 2. Unplug electrical connectors before u mounting the unit. Its a lot easier to take thT bracket off on the bench than in the car. 3. Don't just chuck your hardware in the floor board. Its a bad habit to develop. Otherwise, good I formative video. Thanks for taking the time to do this.

[@fupabox]

good tips

[@inhibited44]

I pulled the fuse from the trunk, so it kills he battery in a week and 1/2 now instead of two days. Is there a module beneath each seat?

[@fupabox]

yes..one for each seat

[@dougantelman2369]

It would help if you said WHICH models

[@zykoncito]

Hello friend, some time ago they gave me some electric seats of a Mercedes s320 year 1994. The seats worked well before removing them in the vehicle and I want to adapt them in other vehicles but I do not know where the positive and the ground are going to be able to make them work. Does the ground get it from the chassis and the positive goes on the pins?

[@BIGMEL2024]

GREAT JOB,VERY TEDIOUS WORK,THANKS FOR YOUR TIME AND PATIENCE TO MAKE INSTRUCTION VIDEO FOR VIEWERS!!

[@fupabox]

you're very welcome

[@ssmith5244]

You have saved me a lot of time. Thank you, great work!

[@fupabox]

Glad it helped!

[@seshachary5580]

very educative. Thank you regards

[@neilyoung5029]

Does the base contain the motors for all movement in the seat including reclining and head rest etc? Thanks.

[@fupabox]

everything but the headrest is in the base on cars up to the early 2000s

[@mechris7973]

Do the modules need to be programed? I was told they do. Mine went out and keeps draining the battery

[@youngjung4361]

No just plug and play

[@dronevlog6687]

hi ya like the video , I have a e250 w212 coupe driver seat stuck close to the steering i have 2 switches 1 moves bottom seat other back rest . i have an issue with back rest , Could it be a fuse or the switch its self ?

[@DEACONKEVMO]

The driver side of my 2002 SLK320 won’t move backwards do you have any suggestions on how to fix this problem?

[@fupabox]

Start on this vid around 1:kzbin.info/www/bejne/Z6uvpYOgp7inm7M First check all your wiring connections und the seat and on the switch

[@DEACONKEVMO]

@@fupabox the switch on the side of the seat is malfunctioning I took off the cover and messed with it and was able to get it to slide back and adjust it to my liking for now but I will need to replace it eventually thanks for the advice my last one I used the above referenced video to get the drivers seat to work a couple of years ago that one got totaled in a freak accident this past black Friday and I was able to find another one the next day just had it shipped to me last week Thanks again

[@fupabox]

@@DEACONKEVMO Excellent 🙏👍

[@warriorquinn8800]

Lmao damn bro this is like a comedy video of some real life commentary shit. We are on the same shit. Fucken classic.

[@elomeli211]

Hey bro I'm going to try this on a w203 c320 because my seat is stuck all the way forward(thanks to my bad luck short girlfriend😂😂). What are the wire colors to move the seat manually forward and after using a external battery?

[@ryanmoloney99]

i think I have this issue as well checked fuses wiring under seats seems to be the module are they expensive

[@fupabox]

+Ryan Moloney Used, they are around $80 I would pull the cover off the module and see if there is any broken solder joints or water that has gotten in.. It can't hurt if you have a dead one to try it

[@ryanmoloney99]

Thanks for the the response I will try that first

[@Dundunbra1997]

Do you know the pinout for those seats? I got some seats and the doorpanel. put its 4 more cables from the door panel than on the seats. 2 of them are power, and thats OK, but the 2 last?? I can only move the seats forward, lift the back part of the seat, and move the head rest. If I remember right..

[@destineydevereux4722]

My problem is my seat backs won't release and it's impossible to get in the back seat, 2002 clk 430 convertible,,, any idea what it could be?

[@barjunkies1]

I was detailing my car forgot I had a air freshener under my passenger seat now it's stuck all tha way fwd only only rt side tries to move back wards

[@MichaelWashburnSC]

Any idea how to replace the motor for front and back movement? mine is frozen and I cannot move to get to the bolts to remove the seat.

[@fupabox]

if its an older car , the whole set of motors unbolts from under the seat as a set .. unplug all the wires from the module and you should see the bolts . Haven't had to do it in a long time so I don't recall exactly the # of bolts

[@jasonmoriset9292]

I have a W208 with a non-working power seat. Does absolutely nothing. I don't want to go ripping in to the seat only to find out that there was a fuse or relay I needed to consider first. Any thoughts?

[@fupabox]

+Jason Moriset power seat fuses are in the trunk under the spare tire cover, and also possibly under the hood if I remember correctly.. check them first and wiggle all the connections to the fuse box in the trunk

[@jasonmoriset9292]

+fupabox I checked all fuses in the trunk and under the hood that pertain to the passenger side power seat control. I just removed the passenger door panel and removed the pictogram control switch from the door . I can't seem to figure out a way to verify if the switch is good so I went further and looked under the seat for any obstructions or electrical issues that were obvious. One thing I did find besides lots of junk under the seat was a single plug with two wires, square in shape with 4 female blade terminals. it had a brown wire and a purple with black stripe wire going into the back of that connector. it wasn't connected to anything. it looks like all connectors that need to be plugged into the power seat control module under the seat are plugged in. I see the seat occupant sensor wire which I believe is the yellow connector and there is a red connector plugged in, which I don't know what it goes to. Is there a way to apply power with, say a 9 volt battery to the wires on the door panel that could make the seat move if it's able to move?

[@fupabox]

Jason Moriset No unfortunately you can't really test it that way..it's doubtful the switch is bad, as it would have a bad contact in one of the seat movements, but all going bad at the same time is likely a module or power issue.. does the seat go forward when you use the release lever that lets passengers into the back ? the seat should electronically slide forwards when the seatback is unlocked for rear seat access, then move back again when the lever is pulled up and the seat back is pushed back again

[@jasonmoriset9292]

+fupabox no it doesn't move at all. I can kick the seatback forward but the seat base northe headrest move.

[@fupabox]

Jason Moriset Ok so it's either the module or power to the module....it should have power when the ignition is on..you will need to remove it and check the plugs for power.. i'll link you to the wiring diagram and seat sections of the repair manual..there are about 50 pages but it starts here workshop-manuals.com/mercedesbenz/clk_320_(208.365)/v6-3.2l_(112.940)/body_and_frame/seats/head_rest/component_information/locations/

[@shawn01754]

I just purchased a beautiful set of c63 seats out of a 2008 Mercedes. I want to retrofit into an early muscle car, using the factory switches. If I rip out that module and wire the motors and heat direct will it work? Thanks

[@fupabox]

yes... you just need the switches and the seat bases with the motors, and the relay for the heaters

[@A.Musa76]

It's that simple to remove the bottom cushion? Will see if it's the same for the W209. By cutting those wires. I wonder if his SRS light came on. on that harness plug with the 4 wires (2 brown / 2 blue). I had a blue and brown wire broke off the plug and I got a SRS light on.

[@shafi10a]

Did you ever figure this out? I also just notice those same wires for me are cut off from connector

[@neilyoung5029]

Thanks....My seat goes back and forward and the base itself tilts etc but the recline and headrest aren't adjusting either individually or via memory....the switches sound like they're working and so I was going to buy a second hand base section where the motors are? Where is the headrest control? Thanks again.

[@fupabox]

the headrest motor is up in the seat backrest... it's wiring goes down to the base module with the rest.. A quick thing you can try is to re-sync the seat.. may or may not fix the issue but is worth a shot... press and hold both the seat forward button and the headrest down button ...hold both while the seat moves forward and continue for 10 seconds once it stops full forward..

[@curtisbennett936]

2006 slk 280. The power seats function but only one side actually moves on the screw. I'm not sure if it was the mechanic messing it up or what. Driver side it even looks like it is missing a motor or some sort of rod connecting the two sides to the one motor. Any schematic or videos you may know of would/could help.

[@fupabox]

start here and use the menu on the left side of the page...full factory manual workshop-manuals.com/mercedesbenz/slk_350_(171.456)/v6-3.5l_(272.963)/body_and_frame/seats/head_rest/component_information/service_and_repair/removal_and_replacement/

[@curtisbennett936]

thank you so much. first picture I saw was what we need to fix.

[@fupabox]

curt bennett :)

[@destineydevereux7355]

My seats won't fold forward so someone can get in the backseat????

[@chuckstogner1222]

I have a 03 SLK320 which both seats worked intermittently and then both quit. I would think with my limited knowledge that the problem is not with the individual seat module, unless one module breaking affects the other. Is my logic faulty and if not is there another module I should be looking at? I hope it is not way up in the dash over the drivers legs where you cannot see, but suspect it is.

[@fupabox]

take a multimeter and check for power at the seat fuses when the ignition is on in the last position before start. If no power at the fuse, wrap a jumper wire from a fuse that has power , to the seat fuse...so essentially hook the 2 fuses to each other so that the one with power feeds the fuse for the seats..can't remember if there are 2 or 1 fuse for the seats. If the seats now work then the k40 relay may have an issue.. but check the fuse jumping first

[@fupabox]

did you check the relay like in this vid kzbin.info/www/bejne/Z6uvpYOgp7inm7M&lc=z120ijf5wtu3w1uag04cfnrr1qymyjvguto0k look around the % min mark to see the wiring some mechanic did to bypass the seat relay.. that is the jumper wiring I was referring to trying out

[@chuckstogner1222]

I check for power with ignition turned off and also with turned on all the way, short of starting. Both times zero voltage. Seat adjustment is fuses 21 & 22 (30A) the fuses behind that 19 & 20 are 40 A for the power windows front and rear. I could tap into those. Think I should use at least a 16 gauge due to amperage. even with a couple inches in length. Do you think larger?

[@chuckstogner1222]

I tried to do the fuse jumping, but my fuse block may be different than yours. If you wrap a 16 gauge wire around one of the posts there is not room for the fuse to go in the slot. If you use 18 gauge wouldn't it overheat with the potential for 30 amps?

[@fupabox]

it is possible it could overheat if used constantly for a long period, but just to test for power it will be fine (18ga)

[@simonpatcharin]

Hi, i have a problem where the seat only does not move forward or back, but i can hear a click under seat when using switch on door. What could this be? I put seat right back for a tall person to play drive, could the seat get stuck? Any ideas would be appreciated. Thanks.

[@fupabox]

yes it's possible to get stuck on something that has fallen under the seat ..A gum wrapper or even a penny could jam in the drive gear .. If the seat will raise up maybe you can get under and see whats blocking it . The click means there is power getting from the switch to the relay under the seat so its likely something under there is stuck

[@simonpatcharinvenaglia7892]

@@fupabox Thank you very much for the insight. Does the relay come first or does the module, if the module is "broken" would the relay work? Could it be the motor as well?

[@fupabox]

@@simonpatcharinvenaglia7892 possible...but if it worked to get the seat to go back , it's doubtful it died just from that . If you have memory seats they can sometimes override the stuck seat . It's weird but worth a shot . It may get the seat to move .

[@simonpatcharinvenaglia7892]

@@fupabox We bought "Clarkie" last week so only played around with the memory keypad until today applying instructions in owners manual. Did a memory check, even with both keys. I vacuumed, high pressure blow all under seat, even sat in back seat and pushed with the Mrs flicking the switch to no avail. I'm heading down motor fault but till I do more shooting who can know. Talk soon.

[@fupabox]

@@simonpatcharinvenaglia7892 let me know what you find out.

[@theblessed1209]

I have a 01 s500 that's stuck forward everything else work up down tilt ect. But won't go back I can hear it when I push back but not moving

[@cedjohnson22]

Following your video for 2001 e320 but seat not raising after removing T40 bolts. There seems to be a bar restricting it. Any thoughts?

[@fupabox]

+cedjohnson22 Not 100% sure unfortunately...here is the service manual page on seat modules on your car...the rest of the manual/chapters is on the left side of this page..the pop ups are annoying but harmless... workshop-manuals.com/mercedesbenz/e_320_sedan_(210.065)/v6-3.2l_(112.941)/body_and_frame/seats/power_seat_control_module/component_information/locations/page_11152/

[@mariawatherston1499]

Hello fupabox, i hope you can guide me. I have a 2002 e500 w211 mercedes sedan and my driver seat will not slide forward it is stuck in the most far back position. I cannot access rear screws to take seat out so i have managed to take out 2 bolts and tilt my seat forward so i have access to the motor that slides the seat forward and back. All the other controls work; up and down, back rest up and down, headrest up and down it is just the seat. Can you please help me trouble shoot?

[@fupabox]

find some plastic safe electrical contact cleaner . comes in a spray can with one of those red tubes to direct the spray . Make sure it is plastic safe . There should be little openings on the sides of the electric motor . Spray into those openings . The brushes on the motor are likely carboned up and the spray should allow the carbon to wash off and get the motor moving . Let me know if that works

[@mariawatherston1499]

@@fupabox thank you i will try this and report back, i have mt fingers crossed that is all it needs

[@Verbalism]

I changed the module out but still the seat still only moves in the exact same directions (seat back moves forward/back, seat cushion on the front moves up and down). Seat seems to move forwards only when I use the trigger to allow someone in the back seat so it kind of rules out faulty seat motors or relays. Any experience with such a thing?

[@fupabox]

the only thing that I can think of is the door panel seat switch, but I would think that's unlikely

[@biglou9662]

Can I take off the whole motor and what ever power seat off of my driver side seat? And I wanted to make a manual adjustable with the analog handle.. How can I do that? Please advices.. I have a 1989 toyota supra turbo and wanted my driver seat not to be a power seat. So heavy!!

[@fupabox]

you would have to replace the power seat with a non power one..unfortunately everything is different except the upholstery as far as I know...

[@biglou9662]

Yes that what i was thinking of it too. But i can easily creating the side plastic cover with the styrene sheet for the turnable analog to adjust the seat for the driver side. Thanks fupabox

[@77RomanK77]

Hi I was wondering if you could help me. I have and 500 SEL 1992 my front passenger has power seat with memory I only have power seat without memory. I would like to have memory aswel do you think I could do something like plug and play ?

[@fupabox]

If it is like most older Mercedes , the memory seats have 2 things different from the regular power ones.. There is the switch in the door, the wiring , and the controller box under the seat that stores the memory.. The wiring , switch and the controller box would likely all need swapping out

[@amanbadshah2016]

My driver seat is not goin back and forth the bottom part how can I fix it? And your videos really helpful thanks.

[@fupabox]

it could be 3 things..the switch, the controller, or the seat motor...if you plug the passenger side switch into the drivers side you could see if that switch made the seat work...if not..the switch is prob. ok then unplug the forward backward motor under the seat and put 12v power to the motor....if that works then you know the controller is likely the problem

[@ksolo101]

***** I've had this issue for a long time now but havent been able to work on it because too busy with my job. my seats no longer work (power seats) before they would work intermittently, (driver and passanger) now they both stopped working at all (they dont move back forth up down tilt..nothing) can you help me diagnose the problem? i doubt its the seat motor since both stopped working at the same time

[@ksolo101]

Mac_Mo_Dollaz also dont think its the switch because both sides dont work...not sure what the controller is or what else to check any help is appreciated ...thanks!

[@fupabox]

Mac_Mo_Dollaz do they move in all the other directions ,,up/down ?

[@ksolo101]

+fupabox No movement whatsoever I'm any direction (both passenger and driver side) sorry new to this whole g+ thing still trying to figure it out lol

[@aleksandarevtimov5506]

I need HELP :) . It is about E class w211 engine m113,E500, year 2002, i watch your video: I have a big problem with the front passenger seat of the car. Before 6 months one time when i drive the seat start moving without human touch :) :) :) , the seat move ahead and down, and the electric motor do not stop, there start smoke from down the seat , i switch off the cable. On the next day i go to the service, they switch on the cable and try to do something with a star diagnose, but without success. The PROBLEM is that they can remove the back bolts into the reel. but they cant remove the front, because of the position of the seat. Now the guy from the service want to cut down the body of the car to remove it, but i am not happy :) :) :) . My question is: Is there is another way like in your video, to have entrance to the power seat control, my car is with full electric seat.

[@rumipezo259]

Nice work, but in my case the motor is working but sometimes "the back" doesnt work, and the head seat, you can hear but not work up and down, i am thinking to do the same process to see what happen

[@FA.1904]

What do you do when everything is working when you move forwards and backwards the seat only moves on one side. Mercedes is charging £1020 for a whole seat motor and the rest of the stuff but im not sure that the problem is really that. Any ideas? MB E350 CDI Coupe 09

[@fupabox]

I have never encountered that problem before..but I would remove the seat and look to see why the one side is stuck.. I would bet something like a coin has fallen under the seat and jammed the motor

[@janetlittle569]

I have an 03 E320 and I took it to the dealership because I kept loosing power. They did a diagnostic check and said it's the seat adjustment control unit draining the battery. Is that usually a something like this does to a battery? (Battery is only 3 months old)

[@shawn01754]

Or should I wire my switch right to the control module only feeding the pins that move the motors?

[@fupabox]

Sorry I read your question incorrectly yesterday.... you want to bypass the module since it uses canbus pulses to operate the seat ... I think you could wire it directly , but I'm a little out of my element with electronics..You may want to check with someone who can give you a more precise answer. I wouldn't want you to fry something

[@saleekmarshall9385]

Will this work on a 2012 c300?

[@fupabox]

similar. Benz still used similar seat modules . Not sure if removal is the exact same .

[@gloriaminaya7200]

fuba I have an E63 amg same issue how do I lift the front R passenger seat

[@fupabox]

+Gloria Minaya The easiest way to remove the whole seat is to unbolt the four bolts holding the whole seat assembly to the floor...they are under the plastic end caps on the seat rails

[@Edsavage404]

My seat does not recline but it does til forward, what could the problem be ? Everything else works fine

[@fupabox]

could be the switch , or the control unit under the seat ..

[@aliggukibnugurli4072]

wouldnt be that easier if you would unscrew the 4 bolts flip the seat back ?

[@fupabox]

yup...if the power seat works and you can get to the bolts

[@aliggukibnugurli4072]

I'm replacing my seats and trying to put in a seats from newer cars seat in and having a problem of wiring the new seats. Can I just slice in the existing wires there and make the new seats work or is it better to wire to a fuse box?

[@fupabox]

you can take the power from the original power seat module wiring

[@aliggukibnugurli4072]

fupabox do you know what wires I can slice in? I know usually here in UK the brown colour wire is the power but tried to connect to that one and ground to a cars body but didn't work

[@victorvictor8587]

I would Ask, Why would you buy a piece of Junk like an SLK 230? I bought One Myself in October 2018 and now I'll be Replacing an Erray of Components and it Only has 78,000 Miles .

[@gdcskates]

Thank you so much.

[@IsAyHiphOpZ]

Thank you so much bro

[@seven73ify]

Great videos clear and to the point Awesome my friend! Well you do a reinstall? Thanks

[@neilyoung5029]

I'm getting the fuses checked first by the way.

[@Manckosy]

For the next vid: Pls a little bit more light and step back of seat for 2 to 3 times in the vid, so it is possible to get an overview of what you doing and wich stepps are to do.... not everybody got perfect english skills :) For me (personaly) its extremly hard to understand what you are doing in which time and where... just show the seat some times from a few meters away....

[@fupabox]

I apologize , my video making and sound skills are not the greatest , but getting better

[@jdecastro357]

Where is the seat belt!!?? This is not for a w211 like it said. And the screw on the back for the plastic cover is not a Phillips

[@SECRETGOVERMENT2012]

can u connect the batt strait to the seat motor to move it back and forward my drivers seat its acting up it moves forward but not back its a 2000 CLK 230 elagance kompressor

[@SECRETGOVERMENT2012]

so i just tryed it and it worked this is wat i did i got a cigaret lighter plug and put 5 amp wire then unpluged the seat and pluged the two wires in the - and + directly to the motor and then plugged it in the cig lighter socket and it went back

[@fupabox]

excellent... I would disconnect the motor from the seat control unit under the seat first if possible..check the lever that moves the seat forward when accessing the rear seat .. if it doesn't come back down properly, the seat can't engage the motor to move rearwards

[@elomeli211]

Hey bro I'm going to try this on a w203 c320 because my seat is stuck all the way forward(thanks to my bad luck short girlfriend😂😂). What are the wire colors to move the seat manually forward and after using a external battery?

[@suzanalasorsa2284]

THANKS!

[@gollane1]

It's too dark to see properly

[@abeyyyy]

My nigga🙏🙏🙏

[@danielhvillegas]

AMAZING?

[@adriannyasia]

Gotta work on your lighting....

[@suzanalasorsa2284]

PLEASE CONTROL DE SEAT AND KEY...OPEN IN CLOSE

[@NilsJakobson]

Cutting the wires when there is a connector - bad attitude, youre just like one of those idiots that go to pick n pull to get something they need but destroying everything whats in the way. Really hate when ppl do it. Even if you dont need the part that does not mean it can be destroyed. Someone could have used it. Occupancy sensors fail and replacing them is pain, you could have just kept the whole bottom seat part for sale. Now you can eat it yuorself because noone needs the bottom part with the wires cut off.

[@fupabox]

This car was going to the crusher in 2 days ... It wasn't in a wrecking yard. It's in my driveway. Having a bit of knowledge about what you are watching can prevent you from making assumptions

[@NilsJakobson]

I perfectly understand that it was in your driveway. Its a question of principle. I bet you would do the same in pick n pull because - it is going to be crushed anyway.

[@fupabox]

Thank you for judging me based on nothing... but I am the guy at the self serve wrecking yard that carefully removes everything , knowing that I may need another part off that car ..You are free to believe what you want though

[@cjg6364]

Some people should stick to paying others to fix their cars when they break. This putz should not be showing people how to bitch up their cars. He doesn't know how to use basic tools and rapidly resorts to unnecessarily cutting wires in his haste. If you want to learn how to break stuff - watch videos like this. If you want to learn how to fix things, watch a video of a professional who actually knows how to take things apart without destroying them. When he cut the wires, I figured he worked at a junk yard at some point. And sure enough, he admitted to it further down in the comments. Junk yards teach hacks how to rip stuff apart as rapidly as possible. And that's all this hack knows - how to rip stuff apart quickly and break half of what he's working with. FAIL.

[@wfreeman1954]

What you missed, was that he WAS at a junkyard. So your comments are out of line.

[@strikeryachts]

no cussing please