WATCH THIS FIRST if your Mercedes-Benz W220 S-Class won't Lock or Unlock -PSE Central locking issues 

You're great, man! Thank you. We rarely can see something as good, easy-to-understand, professional material as this video of yours. Congrats! My W220 already loves you

This is awesome! You explained with depth and detail in a clear cohesive manner. I wish you could repair my S350. I am so tired of having it repaired by "hit or miss" claiming to be experts at servicing Mercedes Benz automobiles. I will continue to watch you for my own level of knowledge about my vehicle. You are a rarity.

I have had two W220s and everything this guy has said is perfect advice. I wish I had listened to this earlier lol

FIND THE LEAK, LIKE IT'S A LEAK BUTTON LOCATED ON THE DASHBOARD TO PRESS WHILE I PANIC. LOL

I've had a 01 s430 for about 15 yrs and thought I watched ALL the videos on fixing and diagnosing the S class, after Watching this video, this guy is on point. Not only does he get to the specifics. He gives you the options and recaps. What you need to do, you are the man and Utilizing his checklist, it actually fixed my problem with my remote. Keep up the good work and look forward to more videos.

God D****, straight to the point, clear and precise instruction without all the blah blah that other RU-vidrs does.

This was a good video, quick and to the point with solid information.

Thanks for prompt response. I forgot to state the day this door stopped functioning occurred at a car wash. i had just closed the door partly and then i witnessed it suction itself to close tight. Since then, i have not been able to get it to open. I will try banking from inside as you have suggested and hopefully it opens. Greatly appreciate the help.

I just bought a 2004 s350 and I’m going to use this video to find this problem, thank you so much 🙏🙏🙏🙏🙏❤❤❤❤❤

You Sir are the best .. QUIK to the point!! Thank you!

Great video, I had to replace all my pneumatic actuators on all four doors and trunk. After age the diaphragm will crack hot and cold weather will do it. Also bought a new PSE pump too. There are no way around it. W220 will all have this issue after a decade easy. Great diagnosis here, thanks for the video

I had an exact problem you addressed. My brother is a mechanic but Mercedes is not his specialty. I showed him this video. He changed the fuse and PSE pump and it worked. I god my car fixed last night and I am super happy. Thanks!

Thank you so much! This video was a big help!! I reset the fuse like you explained and it actually worked !!!

You tell it perfect. I will try stap stap what you all saied. Thank u man👍🏼

Jumpin' on the band wagon to DIY. I found a local DYI garage with tools ,lift, etc. Rental is affordable per hour. The technician has a 6 bay garage,which no longer attracts many DIY customers post COVID,so the young owner rents space to 1 detailer, 1 mechanic and 1 DIY customer. Thanks for your practical Auto safety tips.🙂 FYI_ Your children looked super excited 'bout the corvet.💯😃

Thank you for this video. Very helpful 👌

Mine started act weird, will work sometimes, sometimes no. But what I found is separate electronic components like parking mode dash cam power supply, led lights. This type of behavior was described in newer pickup trucks after installation of led backup lights.

As for the pump - I saw a kit to rebuild a vacuum part of the assembly. It is graphite parts, there's plenty of videos on RU-vid on how to do, how to test with the pressure meter, because you regulate with bolts pressure of the assembly and as it's a graphite - you can destroy it...

Thanks for the video. I have a 2000 S500 central locking wouldn’t work, soft closed doors wouldn’t work, boot wouldn’t open with button or key fob. Fuse kept blowing on the old pump I purchased a second hand pump for £250 and everything has started working.

DAMNIT. loli just ordered an entirely new PSE on my s600. Good news knowing I can just swap motors in the future.i have a couple softclose issues on mine.

Great info thank you.

Hey buddy nice video. I have a 2004 S55 my Doors Not Open everything is working inside softclose trunk. But i cant Open it with the key… what could it be ? Maybe door control Unit ? Keyless start is also working when i open car with key..

Bro thank you so much it’s been sitting here for months finally on and you said what I’d bad the pc something is bad I couldn’t hear

Great info.Thank you for all the tips, I hope that fix the issue on my s500, good bless you.

What fuse is 62 or where is located in a 2001 s500? I don’t see it in the light fuse box in back seat

Hey ty. One question. Three door was working except 1 with sucking system. When i ised this door it sounded like something broke inside. And then the door is locked now. The rest are working except this one . Need to change the pump?ty

Wow, awesome vid, thank you!!

Great content!

Excellent info thank you

Very helpful, thank you...

Hey i think you just saved my day! Ive got a 2005 s500 and ive got some very disturbing issues. So lets start: Central locking works only front doors.Trunk works. Headrest falling works. Buttons on dash dont work. Soft close don't work. Everything work except the buttons on the dash and the rear doors and the soft close .I hear a buzzing sound from the back if I press the buttons on the dash but nothing happens. I think the previous owner switched the PSE from a CL. Thats the only thing i could believe.....?

The situation I'm having is that the keyfob works fine. The central locking via the button on the center console locks and unlocks all doors except the FL passenger door. If I use my scan too to do the same, it works fine.

Hi, I have a w220 2004 s500 4 Matic 5l v8 engine and my teleaid malfunction drive to the nearest dealer is on. how can I clear it and what obd code reader will clear it. thank you.

Thank you for this video! No joke this is one of the most clear and precise informative videos I've watched on the w220. Do you by chance happen to have a video or instructions on how to install the radio fin antenna cover?

bro i literally love you rock

Awesome video! Very detailed and informative. Thank you so much. But check this out , I checked mine and found a 20 amp fuse still perfect? I pray once I change it that’ll fix my problem.

Thanks Lou, Drivers side Soft isn’t working but all others are. My drivers seat isn’t so I am hoping this will fix it! Thanks excellent video short and to the point. Cheers

Why does my trunk do that what is wrong with the trunk latch ?.also my lock with my key only works from my door handle but far away it doesn't I replaced then rear headliner antenna for door lock it didn't fix problem because I think I need a new rear window because the pads touch the glass and the connection is around the glass are not that great is it just the glass??? Also when I use my air ride buttons they work and then when I go to use them again to change setting they just stay lite up red and don't allow me to change them smh.

The best I have seen

Great info.

Thanks for the video! I've got a 2000 s430 with only 40k miles. The car is practically spotless. It's been in storage for years. Of course the locks are defunct like a lot of other shit on this car. Found PSE fuse blown. Pulled PSE and opened for inspection. Looked like day 1 inside that thing. Whacked it a couple of times with 12volts and the pump came alive. Replaced the fuse and it's working, hope it stays that way! Now if I could just get the stupid air compressor to come alive when the car needs it, I might actually be able to drive this car. I swear it's the nicest POS you have ever seen. Total time capsule.

GUYS IF YOU CAN LOCK AND UNLOCK THE CAR FROM INSIDE BUTTONS ON THE DASH, BUT THE KEY IS NOT LOCKING AND UNLOCKING THE CAR IT CAN BE FUSE 60 7.5 amp.(located under rear right seat) FOR ANTENNA BOOSTER AND PROBALY IT IS, CHECK IT

I’m gonna try the pump issue and the fuse. My locks/trunk/door suction not working. Also, my key won’t turn, I’ve been having issues with needing to jump my car so I purchased a new battery but it still periodically will need to be jumped. My key won’t turn but all my interior lights are on. My alarm button isn’t working but my unlock alarm button works. Help!,,,

Thanks for this video. I greatly appreciate you. I have a 2000 S500 and the left rear door will not open at all from inside or outside. The truck will not open with the remote but only with the key. Help!

I love you you saved me so much money

Liked and Subscribed. I just purchased a 2006 S430 with 45k miles knowing the PSE was bad. My new pump came today and it took about 5 minutes to install. Nothing works. I can hear the pump whirring when I push the lock or unlock buttons but the locks don't move. I've tried pulling the (perfectly good) fuse. Still nothing but the whirring. Any suggestions?

Hey Lou, great video! I have inherited a mint 2003 S500 4matic with 29k on it that is having a issue with the trunk open and close. All of the soft close work on the whole car, including the trunk. How can I check was is causing the power assist not to open up or close down? Thanks

On my 2006 S500 the driver door wont lock or self close. Every other works fine, what could it be??

Good to know! I want to help a friend with a 2001 S500 5.0 My friend doesn't have money, and he's 82yrs old, but a cool dude. I'm also taking the CD changer out of my 05 C240, and putting it the spot in his trunk where the existing changer stopped working, and he can't get the CD out of his dash. I won't ever use the changer because for the most part, I stream. But I saved your channel. 👍

Love this thank you

Lou, thank you for all you do. I have a. 2002 S55. All of the buttons on dash don't work for some reason....including ABS, shades etc....could the ABS module be culprit or what do you think...?

I'd be pretty reluctant to use a used' pump. You don't know the miles of the car it came off of, or how long it has been sitting. In my 95 f150, the Hvac used a vacuum system like this to actuate the vents-- and I always hated it. I'm shocked to see these cars use such an extensive vacuum system like this. There's just too many points of failure IMO.

Thank u.

My lights work when I use my key but now it won’t turn the ignition. I also don’t see the infa - red light on the end of the remote

When I switch the pump out and put another used one in it work for about two days deluxe inside the car and the trunk everything work after two days all I hear now is a whispering coming through trunk I pull a fuse out and put it back in to reset the system all I hear is up

#78 fuse (fnt passenger side) blows when I put a new one. My key will not turn, won't lock/unlock doors/trunk. The trunk unlocks from the rear & from inside the car. I've checked all the fuses under the rear seat & all were good. I'm STUCK! This video didn't address my SPECIFIC problem, but I LIKED & SUBSCRIBED anyway because I like the way you hold class. GREAT VIDEO. Any help on my specific issue? As a browse through your videos hoping to find the solution. THANK YOU

I have an Italian electric car certificate and I recently purchased this car in Ukraine where I am trapped due to the war, after less than a week the local police stopped me and they literally kidnapped me with the intention of seizing this "super 5 liter car" from me "but I managed to escape and during the chase I broke two wheels and the internal bumper and also the lock of both the keys and the button inside no longer works, which is important for me so as not to get kidnapped by the local police again, I have already tested the fuses and they work now I will try to check the pump and thank you very much for this video

Lou I have a 2004 s55 with 75000 miles engine running good but lately electrical problems trunk not unlocking via key or trunk button i was told i need new actuator ?? Additionally, my battery went dead had AAA put in new one and head lights will not shut off before this the radio would sometimes not work but then when driving for a while it comes back on is this a control module issue and if so can is it something a DIY could do

Bought used on EBay worked but wet out a month later… just bite the bullet and buy a new one so far so good

I have my driver door lock and soft stop closing. everything else works. well passenger lock works sometimes but soft close works. my car is a 2003 cl55 amg . fuse is good but scan tool reading all the codes in the PSE so now based on your video im thinking the pump is bad thank you.

hey i had blown fuze. i fixed the motor wire and the pump works now but still my locks and soft close doesnt work what do i do

In W220, Battery's condition is very important, and weak will affect many functions

How did you PSE box to check the ground wire?

So Mastertech Lou where is the relay for the SRS on a06S 55 AMG?

Hello how I want to ask you for my car and the window for my dog for driving this is not working you can help me please

Hey currently experiencing my Mercedes Benz c300 locked in drive. I can’t drive or put it in park or neutral. It won’t start. Please help

Hey I’m having a issue with the key not turning in my 04 s500 4 matic Mercedes-Benz can’t start the car… what is this?

What if battery on key is good (new battery), doors lock from button on dash, fuses are good, but lights nor locks respond to the key?

My 01 s500 The only door that unlocks is the passenger side front. The trunk won't pop unless I use the key. Then I hear air hissing from around the Latch area when I do open it. None of the soft doors work except for the passenger sign and the postfeature doesn't work on any of my seats. U think this is the pse? The fuse was fine and the hoses are red not yellow

How to make it make noise when you hit lock button… any way to take it off from quiet mode?

Hello, I have a problem with opening the MB W220 500S 4 Matic, when the temperature drops below zero, I replaced the batteries in the key, the battery is new, when the car warms up, it opens without any problems I DON'T KNOW WHAT TO DO HOW TO SOLVE THE PROBLEM, ANY HINT?

This symptom happens a lot after a car has suffered from a flat battery... I am going to guess that Jump starting the car blows the Locking fuse.? I don't have this model with the pneumaticx.

Is there an exact way to find the leak in the air hoses?

Have a question I have a 06 s430 and when I press trunk open on remote it tries to raise but the lock doesn't open. I changed puck, and same result. When I use key to unlock trunk then use trunk open inside the car, it raises but I had to manually open it. Any suggestions ?

I had a transmission conductor plate put on now my car not moving nor key unlock door help

Do you know where is the fuse for sunroof ?

My fuse was blown and it fix the air on the doors but not the locks

I have cl500 When and when i change the fuse in the lock it blows again please help

i have a 2008 E350 after i park my car it wont lock or open doors or trunk, and my car is not starting any more the key dosent open the ignition switch any more, any help where to check next will be apreciated i already check hood and trunk fusss they are ok thanks in advance

Hello Master Tech What is the issue if the pump continues to run, but doors still don't work

Hi, I have 2007 Mercedes S550, I could not locate the PSE Central locking on the left of my trunk. Please help. Thank you in advance.

I have a 2005 S430. The truck won't open with the key fob, or from the driver side door latch (only with the key). Door locks do not work from key fob, or the dash buttons. However, from the fob, when I press lock, the alarm sets and if you open the doors the alarm goes off until you press unlock on the key fob. Also, the soft close doors do not work. I changed the fuse, but it didn't change anything. Help?

❤

Where is ur shop again !???? Ny or nj ??

I’ve had an issue where when I put a new pump in and the pump instantly burned out… I’ve checked fuses and wiring but no luck… suggestions?

I bought a new system lock a few days ago, installed the driver's door ,now works again... :)

Hi i have S55 2002 gauge's mileage doest work the screen become red any solution for this issue ...Regards

I have issue with my 2000 S500 my windows don’t work dash lights and front power seats don’t work what could be the issues someone told me it’s part called sam that control all that can any one point me in the right direction

Michael Mercedes-Benz s350

God I love those rims. Monoblocks..anything big and full. If she were black id put white wall tires on it.

Can u please make a video on the roof doesn't open and close from the 1st click to the roof botton

🙂

hi my radio is locked how can i unlocked

Here's a interesting one : keys ok , all fueses and relays ok , battery very ok, nothing works just hazards flashing fast , no ignition life(as in ignition not releasing when key inserting) with either keys so impossible to use diags ....

Replacing

Nice

Oh yeah, I have 2006 S350

Man i wish you could just pull out the pse like you did, but nope it doesnt come out like that.

My W220 key not even turning at all

The issue is finding a cracked air line