Beware Remote Boot Opening - it could cost you!

ragingmad

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I have registered here especially to send a warning to other Mercedes owners. My husband collected his first Mercedes 5 weeks ago - an absolutely beautiful brand new Mercedes C-Class Elegance - we loved it. It was going to be a lightly used car because we have an old run-around for work etc. We did a few trips but only put 500 miles on the clock in the first 3 weeks.

At the weekend, we took it out of the garage to wash it and then returned it, locked it and closed the garage door. The boot was firmly closed and in fact was not opened that day. The Mercedes keys were put safely in a drawer. Three days later, my husband decided to use the car - he put the keys of the Mercedes in his pocket and went to move the old car out of the drive.

Then he opened the garage - but the door stopped with a clang before going fully up. He thought it had just jammed so took it down and tried again with the same results. When he crawled under the door to look and see what was going on, he was horrified to discover that the boot was fully open and the garage door had hit it on the way up. It was scratched, badly dented and twisted out of shape through being pushed beyond its limits.

As you can imagine, we are absolutely sick about it. The car is now in the repair shop waiting for a new boot to be delivered. Luckily, he has a protected no claims bonus but he still has the excess to pay and cannot afford another mishap in the next year. Worst, the chances are that the car will never look as good again.

The only way we can see that this happened, is that the remote boot opening button on the key fob was accidentally pressed while the key was in his pocket and this opened the boot behind the closed door of the garage. The manual says you have to press and hold the button - but its only 2 seconds hold. The boot itself goes up like a bullet when you raise it - very powerful and quick.

We contacted Mercedes who say the boot opens like that because that's what their customers wanted - we reckon its downright dangerous. What if someone were leaning over the boot when the button is accidentally pressed? It could brake their jaw or worse! They say that all cars are being manufactured with this facility - I don't think that's true. Remote boot release Yes - swinging wide open at speed, No.

Mercedes also say there is a warning light if the boot is open - fat lot of good that is behind a closed garage. They say it is really difficult to press and hold the button accidentally - we disagree. The buttons are not recessed in any way and they are rounded outwards - pressing against any flat surface could do it.

I saw a post on another forum from a VW Passat owner who had a similar issue - he had his keys in his pocket, inside his house and leant over a kitchen work-surface to open a window. He didn't realise he had pressed the key against the edge of the surface and opened his boot.

Our problem is deciding what to do now. Mercedes say the facility cannot be disabled and suggested reversing into the garage every time. Yeh great - who wants to do that in a modern garage which is built to be just big enough to hold a car? The only other thing we can think of is to put a window in the garage wall and check every time to see if the boot has opened!

So beware all - don't walk away from your car with your keys in your pocket. Just bending down to tie your shoe laces could mean you leave your boot wide open - rain, snow, thieves, anything could result.

Sorry this is so long - but I really think it's worth it to warn people. Has anyone else had similar problems? What's your view on how easily this could happen?
 

anyweb

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sounds like a bummer to me, but people do want convenience

if you really feel you need to make your point known to Mercedes then sit down and think carefully about making a video demonstration of just how easy the boot lid can open.

then stick it out on the internet somewhere

just a thought

cheers
anyweb
 

stevesey

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Ouch.

How about a spy-hole (like you can have in your front door, but looking into the garage), not much good in the dark, but does the boot light stay on all the time while the boot is open. If so would work, may be a slight security issue allowing people to peer into the garage though (but if it's normally black that should be OK).

My (much older) boot springs have been adjusted so that the boot only pop's up a couple of inches when you press the button, just takes a quick flick whatever part of your anatomy you have free make it go the rest of the way.

Hope you find a solution.

Steve
 

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We have two threads on the same post
 

A210AMG

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Hello sorry to hear this and I would be gutten also..

I was outside a bargain booze type shop the other day behind a new audi A5 coupe and the guy came out carrying to crates of beer no hand free he must have had the remote as he walked up to the car up rose the boot and in went the beer...

Handy when it works and you need it I guess.

Surely this option can be disabled if not by merc then an auto electrican.

Just to make you smile though you could fit a large spoiler and the weight would keep the boot from springing up :) you have to look on the bright side, chin up

prodriv_e_spoiler.jpg
 

Rory

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My C Class estate doesn't have remote opening!

I didn't realise the boot wanged open - is it suppossed to do that? On other cars I've driven with this feature, the boot lid just pops up off the lock.

I guess as soon as someone in the US gets injured by a flying boot (trunk) lid then MB will remove it (like they seem to have done with the easy entry feature).
 

jberks

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Agreed - a real pain, but ...
I am a bit confused. Not that I don't understand what happened, but I've had cars with this facility for 7 years now and I have never, even once, accidentally opened the boot. I have had the opposite experience where I've wanted to open the boot but haven't pressed the button firmly or long enough but never what you experienced. I must admit it has crossed my mind as I also have an electric garage door and have to drive in forwards but it's just not come up. (if you pardon the pun)
I have had the keys (with garage remote) in my pocket and heard the door suddenly start up, only to see it gently coming down towards my bonnet (launched myself at it and managed to grab and stop it) so I rarely park in the threshold any more and my Dad once opened a garage door straight into the grill of his Merc so I sympathise but normally the 2 second pause on the button is enough to stop it happening with the boot so I'd have to say you've been very unlucky.

I'd suggest either surrounding the key with other keys on the ring or else never putting the key in your trouser pocket perhaps.
 

Dave's E55 AMG

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I never take my keys out of my pocket - keyless go and all that, but I have had the boot open on me - it's gone off on in my pocket. So every time I walk away I have to look back to check it's not opened.
 

verytalldave

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What a terrible experience. I do feel for you. You must be most upset over this.
However, providing everything is working as it should, I cant see how this could happen by accident. Dont get me wrong, I dont disbelieve you - because I do.
The first thing I would check would be that the key itself is not malfunctioning in any way.
I have one of the new chromed keys AND one of the older all plastic keys for my W203 and both operate in exactly the same way.
To operate the boot release only - you have to hold the key button down quite firmly for a couple of seconds for it to work. Not something I have ever done by accident. Even when in the pocket which might be full of coins, conkers, sweets, marbles and all the other things we boys carry around, I cant see that happening. Providing the key is not at fault, then the next thing to examine would be the boot catch itself. And as yours is damaged, not an easy thing to do.
I would hope Mercedes take this event seriously and investigate exactly why this happened and then take steps to ensure it cant happen again. Either by redesign or adjustment.
I do agree that the boot does lift rather over energetically but I have got used to this and am ready for it now. It can even be assisted by a windy carpark which makes it pop even quicker. So be warned.
Please keep this forum updated with how this incident progresses and anything Mercedes say on the subject. Good luck.
 

Splatt

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I have a C class (with a wanging boot lid). It has never operated unintentionally but out of interest I have carried out a test to see how sensitive the remote operative system is. Not going outside (cos it is hissing down at the moment ) I find it operates the locks on the car in the garage from inside the house at least 30ft away through 3 brick walls. Owners therefore need to be careful about handling the key fobs when they are away from the car. It would be horrendous with a power operated up and over door, probably mangle more than just the boot lid.
 

philharve

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Confused

Hi All

I have never experienced my boot release activating accidentally and I always carry my car keys in my pocket.

However, on the very odd occasion I have absentmindedly pressed the boot release button by mistake thinking it was the car unlock button. But I've always realized my mistake and gone out into the street and closed the boot lid. I feel a bit of a wally at the time but I look inside the boot before closing it hoping that anyone who saw the boot open would think 'the owner meant to do that'.

I often lock/unlock my car with my keys still in my pocket and I seldom make a mistake. I am therefore wondering if the boot release button was pressed in error? It is a new car and it does take a time to learn the position of the buttons on the fob, especially if they are being operated whilst not looking at them, in a pocket, say.

Wanging boot lids!!! I don't understand this? Does the boot lid have a powered ascent on modern Mercedes?

When my boot lid is released there is a gentle click following by a slow rising of the lid to the fully open position. No wanging at all. I can stop its ascent with the gentleless pressure. I imagine its ascent speed can be adjusted and I've even found a small lead fishing weight attached to the inside of the lid will stop it rising once released.

I don't subscribe to the faulty key fob scenario. It's more likely to be the accidental operation of the boot release button.

Automatic garage doors ... well, I wonder how many vehicles they've damaged over the years! Why not try reversing into the garage? At lease the bonnet doesn't wang open.

However, I do comisurate with the owner, it must have been a dreadful discovery. Presumably the damage is confined to replacing the boot lid and its supports?

REGARDS

Phil
 

benzo

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My commiserations, ragingmad. I also have never had my boot open accidentally, and I've had my C class for almost 5 years and E for over a year. I find you do have to apply some pressure to get the key fob to open the boot.

Adjusting the spring tension may help prevent it popping open at speed, other alternative as mentioned earlier is maybe having a small peephole through which you can check if the boot is open before swinging open the garage door.

Not trying to second guess you but I feel the boot opening button may have been pressed accidentally instead of the door opening button. This can happen if you are not used to the remote fob.
 

James R

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Here's a thought : don't put your car keys in your pocket !

Here's another one : reverse your car into the garage !

I don't see how you can blame the maunfacturer when the car hasn't malfunctioned. Bad luck.
 

jberks

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To be fair, nobody can be 100% sure there wasnt a malfunction........

Agreed, though I would certainly be in the mid 90% range. Assuming it was a malfunction then it could be assumed that the catch failed and it had nothing to do with the remote or alternatively, it wasn't closed or latched properly which falls back to user error. I don't believe its a design fault as we all have the same function and none of us have ever had this happen,
Its frustrating but I believe there is no one to blame, its just one of those things. You live and learn.
The insurance will sort it so no real harm done.
 

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One must not forget that these signals pass through garage walls, but I still say reverse in, as you have to doing one way or the other
 

SteveyT

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I find the range on my key to be rather dismal! Sometimes i have to be stood right next to the car for it to unlock the doors/pop the boot!
 

rf065

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If you had bought the new estate version, the procedure below sets/adjusts the opening height of the tailgate. not sure if you could do something similiar with the bootlid using available parts from the estate?




Opening and closing from the inside
You can only open and close the tailgate from the driver's seat when the vehicle is stationary.

Risk of injury
Monitor the tailgate closing procedure to make sure that nobody can become trapped. Release the remote operating switch to stop the closing procedure.


Remote operating switch


To open: press and hold the upper section of remote operating switch until the tailgate opens.

To close: make sure the key is in position 1 in the ignition lock.

Press the lower section of remote operating switch until the tailgate is closed.


Restricting the tailgate opening angle
You can limit the opening angle of the tailgate within the upper half of its opening range. This could be useful, for example, if there is insufficient clearance above the tailgate.

Activating
To open the tailgate: press and release the button in the handle.

To stop the opening procedure: press the button in the handle again or press the button on the key.

Press and hold the closing button in the tailgate until you hear a brief tone.

The limited opening angle is activated. The tailgate then stops in the stored position when opened.


If you want to open the tailgate fully, press the button in the handle of the tailgate again after it has stopped at the set angle. The stored position is retained.



Deactivating
Press and hold the closing button in the tailgate until you hear two brief tones.




Russ
 

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