Key wont come out of boot lock

[shayes]

Why oh why??? did I check to see if the boot was locking when I heard all the soft close doors lock! Just my luck to discover the central locking was not locking the boot even though the soft close mechanism works perfectly. I put the keyfob in the lock to lock it manually only to find that the lock will not release my keyfob. Book says, turn to quarter past three position but it won't release. Tried the second keyfob infrared to unlock the car but nothing happening. Tried the keycard infra also - still nothing.

With some trepidation, have decided to leave key in boot until the morning rather than try a key in the drivers door lock and possibly set off alarms or something else to worry about at this time of night.

Anyone know why this is happening? Whats the answer please. Drivers door will not unlock all locks I assume, and so boot may still not release the keyfob. Will the infra work on the system once access gained? Dare I open the drivers door?

Nightmare.

Thanks

 

[shayes]

Still needing some help here.

Have unlocked drivers door with second key but infra red is not changing system light from red flashing to green. What happens if I get in the car and try starting it with the second ignition key. Will World War three start with the alarm system?

Can't fathom why boot will not release key unless boot lock is not original is my only thought.

 

[television]

What has happened here is that a pipe on the vacuum lock has come off or split on the boot lock.

So your key is stuck in the boot lock,, it will come out, they get very dirty. Spraying some silicon lubricant will help but difficult to get in with the key still in.

Is your key the folding metal one that flips out on the button. if so the remote part should still work

 

[shayes]

Just tried synchronising by flshing light twice at the transmitter and then turning key in ignition and got a green and car doors unlocked. Unfortunately, boot has not released my key and when I lock the car I get the two colours green and amber flashing repidly for about fifteen seconds before lock mode amber shows. Does this tell me I have a replaced boot barrel and now a permanently locked boot and an unrmovable key?

Can dismantle the fob from the blade it I guess, but still leaves me with no boot.

 

[television]

Yes the key comes off the remote case,, and the key can be replaced on its own if need be. with a pair of pliers the blade can be pulled out, but take care and not to hard as it will snap off, as said it will come out and a good spraying will let you pen it with the key

 

[shayes]

What has happened here is that a pipe on the vacuum lock has come off or split on the boot lock.

So your key is stuck in the boot lock,, it will come out, they get very dirty. Spraying some silicon lubricant will help but difficult to get in with the key still in.

Is your key the folding metal one that flips out on the button. if so the remote part should still work

Thanks Malcolm, I've put further news before reading your advice. Yes my key is a folding one and as the second key has lost its spring system I see I can easily take the thing apart.
Question is, if I have put in a key which does not fit the lock, will the lock mechanism prevent the key from ever releasing and prevent system unlock from overriding ?

 

[television]

The chances are Stuart that the key is original, but the little tumblers in the boot lock get corroded and at the moment the tumblers will not release your key. Do get some silicon spray, it will not hurt the paint on the car or anything else, and spray into the lock, wriggling with a pair of pliers will release it eventually. Its a common fault

 

[shayes]

Yes the key comes off the remote case,, and the key can be replaced on its own if need be. with a pair of pliers the blade can be pulled out, but take care and not to hard as it will snap off, as said it will come out and a good spraying will let you pen it with the key

My thanks Malcolm, I squirted a little into the lock and on twisting to the unlock position and pressing the boot lid released and the key did come out with a bit more pulling.

Think the boot vacuum must be faulty as I tried synchonising the system and both green and amber flash rapidly as do the indicator lights. Boot now will not open. After starting the car the system seems to just flash amber and turn to green but boot still does not open.
Think I'll need take two sets of keys with me from now on until I can get a new vacuum unit. Murphy's law that I gave away three with the 500SEL I recently sold!

 

[rf065]

Its a common fault

There was a thread last week where someone put the key in the boot lock for the first time in 12 years and the key got stuck as there was 12 years of road dirt now stopping the key from being removed.

Plenty of lubricant, allow it to soak well in & get a good grip on the key with pliers and pull.

I don't think my car has had a key in the bootlid since it left the factory, may be worth cleaning the lock out now in case I ever need to use it.

Russ

 

[television]

The vacuum pipe will be off or leaking, thats easy to fix.


Do pop in to a MB dealer and buy some of these little caps that stop the dirt from going into the lock tumblers

50P each

 

[shayes]

The vacuum pipe will be off or leaking, thats easy to fix.


Do pop in to a MB dealer and buy some of these little caps that stop the dirt from going into the lock tumblers

50P each

It's a relief to return almost to the status quo. Amber locked and green unlocked, showing as they should.
Left boot unlocked at the Supermarket car park but it had self locked on my return so slight leak in the pipe/unit as you say Malcolm, which just about powers up after a while.
Still can't fathom why the additional infra remotes would not unlock the car doors when the key was stuck in the boot? Job to do when/if the weather improves. Added to the list.

Just fitted a blowback valve to the conduit from MAf to chamber - will give the LPG a try now. Previous owner said only two blowbacks in nine years but it totally split the conduit alogg the join seams which previous designed conduits don't have. Still may have saved the MAF sensor which I guess it less cheap to replace.

Thanks again.

 

[television]

It's a relief to return almost to the status quo. Amber locked and green unlocked, showing as they should.
Left boot unlocked at the Supermarket car park but it had self locked on my return so slight leak in the pipe/unit as you say Malcolm, which just about powers up after a while.
Still can't fathom why the additional infra remotes would not unlock the car doors when the key was stuck in the boot? Job to do when/if the weather improves. Added to the list.

Just fitted a blowback valve to the conduit from MAf to chamber - will give the LPG a try now. Previous owner said only two blowbacks in nine years but it totally split the conduit alogg the join seams which previous designed conduits don't have. Still may have saved the MAF sensor which I guess it less cheap to replace.

Thanks again.

Thanks for the feed back Stuart,, the 140 are very nice cars

 

[shayes]

Had hoped I had sorted the problem here but it seems not. I discovered that the Boot slider which assists the vacuum rod going in and out had snapped off a piece of its guide and so the thing was waving about and disconnecting from the bar on the lock mechanism.
Job done in making a repair.

Locking system still not co-ordinating despite instructions in hand book. When car locked, boot unlocked, and visa versa.
Late last night at a car park I unlocked the boot with the key and although the boot opened, the mechanism in the lid ( a handle which comes out to enable boot closure without getting dirty fingers) did not come out. Result - boot would not close!

Taped boot and returned home. Today looking at how to examine mechanism in boot lid.
Can't fathom how boot liner comes away? No obvious plastic push fit parts. Have unscrewed lock itself and looking at screws next to number plate lights but not obvious how liner is removed.

Any clues please.?

 

[television]

http://www.detali.ru/cat/oem_mb2.as...GM=717.454&CT=F&cat=19B&SID=75&SGR=030&SGN=02

Though I have a how to for the removal of the handle, it just says remove liner, with no instruction

 

[shayes]

Many thanks Malcolm.
Is this the later S320 series?
Technically I do not have a boot handle. The boot opens by pushing on the key lock and a chrome plate springs out on upper boot which withdraws itself on self-closing. Think there is a vacuum for this, not in the images seen, but will study again.

The internal moulding seems pretty firm and only place I can see a possible release for it is at the hinges. I'll put up a photo if it will help.

 

[television]

The one that I have up is a 140032 the cars are not listed as an L version,do you have your first 6 numbers please

 

[shayes]

If you mean 1400332 yes that's the one.

Delighted (and very much colder) to say that I have possibly resolved the problem.

I pressed the catch mechanism forward to the lock position in the boot lock and then turned the key to unlock the boot and the boot lid plate sprang out. Think its all down to needing a little lubrication and the cold weather. Lube now done.

Many thanks Malcolm will monitor how it operates but at least in an emergency I will be able to do this little simple manouvre. Strangely, in the handbook it talks about releasing the boot by clicking a red lever to the left and then pushing on the lid catch and following it by moving red lever to right. Tried this but nothing happened.

Glad to get back to my desk and the warmth.