goth

i had a trunk problem last night and when i locked the car the drIver side wouldn't automatically lock SO,....i think i forced the lock in and now i can't get into my car
i cannot unlock it shows flashing when you lock or unlock but it doesn't make that unlocking sound any more
any idea what to do now?

goth

could this be from the vacuum pump?

moretech

try the manual key for the door

moretech

goth

hi
i have and it's very stiff i can't turn the key
i don't wanna use WD 40 unless the experts here will suggest it's the best way to get the key working ? ? ??

moretech

I doubt the pump caused this but if you cannot get the door open you aren't going to access the trunk with the interior switch to get to the pump either. Very weird. Might try a bit of 3 in1 oil on the key itself but in any case you need to open the door or you aren't driving anywhere. I am amazed at times what strange problems show up in these cars. Best of luck on this strange problem.

moretech

goth

UPDATE:

turned out it was a 20 fuse. replaced it now everything seems to be working like usual.

goth

mercedes are the worst cars in the world

rustybear3

You have a 16 year old car (I assume you just bought it), could have been beat on with high mileage, have a few problems ( all solvable) and then declare Mercedes the worst car. Just wow!

Rudeney

Fuse 71 I am guessing? if so, it's probably burned out because their is a leak and the PSE pump is running continuously. You need to fix the underlying problem, which is most likely the trunk latch. Look at the sticky at the top of the forum.

goth

is that where are all the noises come from then?
when i unlock the car or when i am in the car i hear all these clicks or nuts being tightened ... i mean are you supposed to hear all these things move and for how long?
do you think it's a line that needs replacing or is it the whole pump. i called my local mercedes dealership and they quoted $3000 with labor but they urged me to do diagnostics first. item#2308200648 or A2308000648?

White Spyder

Rudeney

If you are not going to DIY, I suggest finding a good local indy shop to work on your car. The dealers are very expensive and usually not very good at doing anything but swapping parts and making huge profits.

As for the noises, one that you might hear is the SBC (Sensatronic Brake System) charging. It will sound like a motor or air compressor under the hood running briefly. This can happen at any time when the car is "awakened", which happens when you open a door. This is totally unrelated to the PSE (pneumatic) system used by the trunk latch, door locks, interior compartment locks and the seat lumbar adjustments. This pump is located in the trunk, inside a sound-deadening box. You will hear some clicking noises from the latch when you open and close the trunk, and you may hear a very faint sound of the PSE pump operating, and even some "swooshing" sounds of it pumping air. These are all normal sounds.

Note that if you hear air blowing sounds for more than a second or two after opening or closing the trunk, then you have a leak in the latch (which is very common) and should be fixed.

goth

hi
great point there. for sometime the seat lumbar support hasn't been working. so ? it is the PSE pump? or one of those yellow lines that needs to be replaced?

goth

hey Rudney,
i am not educated on the #s but it was here:

White Spyder

goth

well
i think the ABC failed. i was going at 80km then i heard an explosion or an implosion whatever it was it went through the fender
should i start another thread i mean has anyone seen anything like this?
i think i am pretty much ****ed at this point

Rudeney

Wow, I've seen one other case of this posted int he forums. I think it's caused by a failed pressure which allows the system to be over-pressurizes and it snapped the pulsation dampener off. It can be fixed, though you'll also need some body work.

hitwtom

Rather than start a new thread I'll ask for help here since I believe it's related. Been around the forum for some time but not lately. My newest to me is a 2012 SL63 AMG. Recently the door locks would not lock and the trunk wouldn't open. After reading threads here and another forum I did some checking and found a 20amp fuse blown behind the passenger seat. My fuse list didn't match the one above but I believe it's #71 or 54 depending on the year of the fuse list. I replaced the fuse and heard a pump in the trunk run for about 30 seconds before the fuse burned out again. My understanding from a lot of reading is that fuse is for the pump time out relay to keep everything else working if the trunk latch is bad. Is this correct? Where should I check next?

Thanks,
Tom

Rudeney

Most likely a leaking trunk latch caused the PSE pump to run continuously and its motor has burned out.

goth

so mine reacted the same exact way now i can't lock or unlock the car with the key fob however thankfully i was able to get the manual key to work
but i do know for convertibility i need the lock to work?? what's the solution here though. replace the vacuum pump?

goth

i would also like to give an update on the implosion that happened to my car two weeks ago
it was the pulsation regulator. the THIEVES lying scum CKSUCKERS at mercedes told me it was the ABC pump and the valves that need to replace without even giving a **** to investigate what was really wrong or what happened they wanted "$5000 to start". ABC pump was fine the pressure valves were fine too.

Rudeney

So did you finally find a good indy shop to help with this? What about the body work?

goth

hi Rud yes i found a mechanic who did body work as well so that's two birds with one shot. he fixed the pulse regulator and pressure limiter assembly.
bought the fender from ebay happened to be the close color cause my car is pearl black as opposed to just black and yeah.

Rudeney

Glad to here it's all sorted out!