not-front-rule

99 SLK Problems

Welcome to the Mercedes-Benz Club of America Forums
Here, you'll find members en masse who can talk, guide, answer or listen to your Mercedes-Benz related questions and comments. Participation in the forums is free to Club members. If you're a guest of this site, you'll have access to our read-only discussions. Like what you see? Join the Club to get full Q&A privileges. If this is your first visit, be sure to check out our FAQ page.  To start viewing messages, select the forum that you want to visit from the selection below.

Forum Jump

13 replies [Last post]
Member
dolebludger's picture
Durango, CO
Offline
Joined: September 3rd, 2003

Posts:
2916

Vehicles
2007 SLK280
2004 C320

--------------------------------------------------------------------------------

Well, my daughter just had her first problem with her new (to her) SLK. She had been driving with the top down and attempted to raise it. The front of the trunk rose up, as it should,. and then nothing but a flashing light on the top up/down button.

Any ideas??

Thanks,
Richard :confused:

Share this
__________________

'07 SLK 280 '04 C 320 '01 Honda S2000 '11 Toyota RAV4

Guest
John Fair 1's picture
Offline

Posts:
159

I have had similar experiance operating the top with the car moving. I found that I can operate the top only with the car moving in first gear at idle, maybe 5mph. If the top stops and light blinks I must come to a complete stop to reset.

So if your operating the top at traffic lights, it is best to only do it if you just miss the traffic light. It takes about 30s to operate the top and when I did this for fun I found most lights were about 40s. :D

Member
dolebludger's picture
Durango, CO
Offline
Joined: September 3rd, 2003

Posts:
2916

Vehicles
2007 SLK280
2004 C320

John:

I may not have been clear in my statement of the problem. Daughter's car was parked when whe attempted to raise the top. It was not moving. The front edge of the trunk raised, and then nothing happened except that the light on the top control button flashed on and off. She then followed the procedure to close the top manually. The next day, a friend re-set the hydraulics, and the top worked fine, and has worked well for about 5 days now.

What went wrong is a mystery. She lives about 700 miles away, so I had no chance to examine the car myself. I've since learned that the flashing light on the top control button is a sign that one or more of the seceral switches that must "be right" for the top to raise or lower was sending a "stop" signal for some reason.

Any additional info will be welcome, as I know the problem may happen again.

Thanks,
Richard :confused:

__________________

'07 SLK 280 '04 C 320 '01 Honda S2000 '11 Toyota RAV4

Guest
John Fair 1's picture
Offline

Posts:
159

Richard,

Probably a dumb question but was she operating the top with the engine on or off. I noticed operating the top seems to take a fair amount of electrical power so I stopped operating the top with the engine off.

I am real curious about the "reset the hydraulics" part of you reply. I would like to understand what was involved. Could you elaborate? :D

Anonymous
Guest
Anonymous's picture
top

With out seeing what codes are stored all I can do is tell you what is the most common problems with the slk top.On the roof panel itself[the panel taht contacts the windsheild frame]there is 1 microswitch on each latch.REmove headliner,or loosen it enough to hang down.When looking at the latches you will see the microswitches.These will be small pin type switches.The small black plunger has a clear rubber dust boot on it.Remove this dust boot carefully.The dust boot restricts movement of the pin intermittently.When the top is operated it looks at all these switches.If it sees something it does not like,such as a switch that is closed-or open when it should not be,it simply wont operate the top.Once again these boots cause intermittent restrictions.One minute the top can work-the next nothing.I would take these boots off even if they are working properly at time of inspection

Member
dolebludger's picture
Durango, CO
Offline
Joined: September 3rd, 2003

Posts:
2916

Vehicles
2007 SLK280
2004 C320

John:

Again, I only know what daughter told me, as I was 700 miles away at the time. By "reset the hydraulics", I meant only that there is a disconnect from the hydraulic mechanism to allow for manually raising the top in the case of failures like this one, and this was done, and daughter's friend merely re-connected the hydraulic mechanism. And the top then worked fine for some reason, up and down. I understand that she had the engine on, with the car in park and the parking brake on when she tried to get the top up, and something went wrong. The front of the trunk lid rose, but nothing else happened except for a flashing light on the top control button.

So, nothing was really done to fix anything, as far as I can see. However, the top is still working fine.

Since I posted this, I've been advised that this model has several microswitches that must be in the right position (and functioning) for the top to work. One that I suspect here is on the right side of the trunk screen holder. But only time, and futther advice, will tell.

Thanks,
Richard :) :) :)

__________________

'07 SLK 280 '04 C 320 '01 Honda S2000 '11 Toyota RAV4

Member
dolebludger's picture
Durango, CO
Offline
Joined: September 3rd, 2003

Posts:
2916

Vehicles
2007 SLK280
2004 C320

AS199:

So, are you saying that there would be no harm with operating this car with the "boots" permanantly removed?

Thanks,
Richard :) :) :)

__________________

'07 SLK 280 '04 C 320 '01 Honda S2000 '11 Toyota RAV4

Anonymous
Guest
Anonymous's picture

Yes.They are simply dust boots.The latches are under the headliner.Not much chance of them getting dirty there.When an slk comes in I always remove those boots if it the cause of the problem or not.This is a VERY common problem on these cars.It may not be the problem with your car,but I see it all the time.

Member
dolebludger's picture
Durango, CO
Offline
Joined: September 3rd, 2003

Posts:
2916

Vehicles
2007 SLK280
2004 C320
Progress Report:

AS199 and all:

Since the last advice on this thread, Daughter took the SLK 230 to an "indy" shop in Durango, Co., because the top failed to raise again. All they did was to raise the top manually, say there was a switch out that they couldn't fix, and charge $85. So Daughter took the car to Mercedes Benz of Alburqueque (aka Premier Motors). There, Service Advisor Leland and the techs were most helpful --- but couldn't get to top to malfunction so they could read the codes! I got on the phone with them, and requested removal of the switch "boots" per AS199's advice. This, they did --- and actually charged nothing for their services, which I felt was very nice of them indeed. I simply wish Daughter lived less than three hours from their facility.

Now, we wait to see if the "boots" were the cause of the probllem, and whether their removal will cure the problem. If this isn't a fix on this car, what is "plan B?"
On another MB board, I've been advised that it is replacement of all three "top control" switches located where the top meets the windshield frame. What do you all think?

And, by the way, does anybody know of a good "indy" shop in SW Colorado, or nearby in the "four corners" area, as there is no dealer actually close to this area ?

Thanks,
Richard :confused:

__________________

'07 SLK 280 '04 C 320 '01 Honda S2000 '11 Toyota RAV4

Member
dolebludger's picture
Durango, CO
Offline
Joined: September 3rd, 2003

Posts:
2916

Vehicles
2007 SLK280
2004 C320

I'm bumping this up, as I truly want to get some additional advice on possible causes for the top failing to raise on this model.

Thanks,
Richard :) :) :)

__________________

'07 SLK 280 '04 C 320 '01 Honda S2000 '11 Toyota RAV4

Member
dolebludger's picture
Durango, CO
Offline
Joined: September 3rd, 2003

Posts:
2916

Vehicles
2007 SLK280
2004 C320
Update:

On daughter's SLK 230, we had the "boots" removed from the button switches where the top meets windshield frame. It helped a great deal. Still, on rare occasions, the top will fail to raise. Daughter has found that she can make the top raise by "jiggling" the contact point where the pull-out luggage protector bar clips into its right side fitting. So, whereas originally I think we had a problem with several switches, I think now we have isolated the problem to the switch that is activated by the luggage protector bar in the right clip-in assembly.

So now my question are about this switch. Is it accessable in some way so I could spray some cleaner on its contact points and perhaps fix the problem? And, beyond that, is this switch difficult to replace?

Thanks again,
Richard :) :) :)

__________________

'07 SLK 280 '04 C 320 '01 Honda S2000 '11 Toyota RAV4

Anonymous
Guest
Anonymous's picture
SLK Top Malfunction

My 2002 SLK 230 had a problem with top not operating. All started with a beeping sound warning me about something. Sounded like "key in ignition" warning. I was pulling out of a parking space and the top was closed. It beeped again, and then I noticed the top actuation button flafhing red. Pulled into the MB dealer. They didn't know what the problem might be, but tried actuating (opening) the top. Big mistake! Only operned part way. Trunk opened and top was partly up. A few days later I got my car back with a new wiring harness of some sort. Now, after reading all these posts, I'm wondering if they really fixed something or maybe it was intermittent and I'll experience it again.

What do you do to operate the top manually?

Member
dolebludger's picture
Durango, CO
Offline
Joined: September 3rd, 2003

Posts:
2916

Vehicles
2007 SLK280
2004 C320

walsem:

To back up ust a bit, Daughter drove down to Albuquerque to the MB dealer there, who listened toher description of the malfunction (trunk raises, top goes up a little and all stops). The dealer said the problem was in one or more of the sensing microswithces located in the top where it joins into the windshield top and in the right latch for the luggage screen in the trunk. But the dealer raised and lowered to top over 50 times and couldn't get a malfunction. Without this, he couldn't get a code reading. I had him remove the rubber boots mentioned in AS199's posts above. That reduced the frequency of malfunctions. The dealer said unless he could catch the car malfunctioning, all he could do for a guaranteed fix was to replace ALL the sensing switches, which he said wouldn't be cost effective.

Now that Daughter is back at her home in Durango, she has the problem described above only once in a blue moon. So I think the rubber boots were part of the problem. And, when she has the problem, all she ha to do to get the top to work is to "jiggle" the luggage screen in the trunk on the right side where the pull-out bar attaches and makes contact with a sensing switch. To me, it would seem that this diagnoses the problem as being a defective or "dirty contact point" luggage screen sensing switch. So my question involves how to replace or repair it.

As far as how to raise the top manually, Daughter says that is covered in her owners manual. I can't be more specific, as the car and manual are in Durango, and I'm in Oklahoma City! But if she could read the manual and figure it out, anybody could -- trust me!

Thanks,
Richard

__________________

'07 SLK 280 '04 C 320 '01 Honda S2000 '11 Toyota RAV4

Anonymous
Guest
Anonymous's picture
1999 SLK Top Operation

I, too, have had a similar intermittent malfunction with the top operation of my 1999 SLK230. About once a month, the top will fail to either raise or lower. Usually, after multiple attempts, the top will work. My mechanic cannot duplicate or find the problem. I appreciate the insights provided by others here. I have printed a copy of your comments to take to my mechanic the next time I am there. Thank you.

Forum Jump

Share this