SLK 230 top problem - Mercedes-Benz Forum

Go Back   Mercedes-Benz Forum > Mercedes-Benz Roadster Forums > R170 SLK Class
New User? Register - Forgot Password

BenzWorld.org is the premier Mercedes-Benz Forum on the internet. Registered Users do not see the above ads.
Like Tree1Likes
Reply
 
LinkBack Thread Tools Display Modes
Old 07-10-2007, 09:17 AM   #1 (permalink)
BenzWorld Junior Member
 
Date registered: Jul 2007
Vehicle: 1998 SLK 230
Location: Green Bay, WI
Posts: 10
SLK 230 top problem

Hi,

I have a 1998 SLK230 that has developed some top problems. The first and most common sign that I had was in putting the top down, the windodws go down, the back trunck raises, the top comes unlatched and then everything stops moving but the pump continues to run. I have also had 2 instances where the top was down and in trying to put it back up, the back trunk raises and the top gives a little nudge but does not go up and the pump continues to run. This past weekend, the top was down and it did this again and no matter what I did, I could not get it up. I had to manually raise the top as per the instruction manual so now the back quarter windows are down and I can't do anything. The dealer wants to install a latch group which costs 450. to buy and 150. to install. It sounds like they are not sure. I am capable of testing the limit switchs and trouble shooting this if I can get some direction. Can anyone help? Also, now that I have manually put the top up, how do I go about putting the top back into operation? I tried to tighten the allen screw that I loosened on the pump per the operators manual but it does not seem to turn now that the top is up.

Thank You
Mike
Stratmax likes this.
mbenoashwaubenon is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 07-10-2007, 09:40 AM   #2 (permalink)
BenzWorld Senior Member
 
rasoul's Avatar
 
Date registered: Aug 2006
Vehicle: '03 SLK32 AMG
Location: Tulsa, OK
Posts: 457
Send a message via AIM to rasoul Send a message via Yahoo to rasoul
Hey Mike, welcome to benzworld.

There are a few switches/sensors you need to make sure are activating between each cycle.

Bazzle, please correct me if I'm wrong because I'm doing this from memory and I've slept since last taking the trunk apart.

The trunk latch and trunk cover switches are the obvious ones, if they're not engaged nothing will work, but you knew that, so skipping on...

First sequence is the trunk opens backwards. This hits a sensor located on the passenger (US, so... right side). It's right above the roof motor, it's a little peg a little over an inch long. When that is hit by the roof bar, it activates the next step.

Second sequence, the roof detaches and moves into the trunk. This hits a sensor "somewhere" (bazzle?) and causes the trunk to lower again. When the trunk lowers, it hits a similar switch in the left side (drivers side for US) near the rear of the trunk under the panel (as i said, similar to the other one). When this is hit, cycle is completed.

Similar to going up... BUT, when the final switch is hit, it triggers the small windows to go up. I had the problem where the pump keeps running but the small windows remain down. It seems that last switch went bad. I took it to the dealer and they replaced that switch. Works great now.

From the problem you describe where "the top comes unlatched and then everything stops moving but the pump continues to run" do you mean it just stops immediately after being unlatched or do you mean it stops after being lowered into the trunk? If it stops after being lowered and the trunk never closes, then I would start with the sensor that triggers the trunk lid closing. Conveniently it's the only one I didn't mention, hopefully bazzle or someone can help out finding this sensor.
rasoul is offline   Reply With Quote
Old 07-10-2007, 09:42 AM   #3 (permalink)
BenzWorld Senior Member
 
rasoul's Avatar
 
Date registered: Aug 2006
Vehicle: '03 SLK32 AMG
Location: Tulsa, OK
Posts: 457
Send a message via AIM to rasoul Send a message via Yahoo to rasoul
Another thing you may try, if the sensor is a bit loose and it's hitting it correctly, you might try giving the roof a little budge once it's snug in the trunk, and see if it catches the sensor enough to bring the trunk back down. Of course, that's until you can get it fixed.
rasoul is offline   Reply With Quote
Old 07-12-2007, 04:30 AM   #4 (permalink)
BenzWorld Elite
 
Bazzle's Avatar
 
Date registered: Apr 2005
Vehicle: Golf R32 / Prev R170 SLK
Location: Melbourne, Australia
Posts: 6,821
Ist thing to go wrong is the midcro switche
Next thing is sticky catches, hinges and seals
Then oil leaks in the rams, check sight glass for oil on pump.

Next ??? multifunstion controller ???

Bazzle
Bazzle is offline   Reply With Quote
Old 07-12-2007, 02:03 PM   #5 (permalink)
BenzWorld Elite
 
Kirill's Avatar
 
Date registered: Jul 2003
Vehicle: 01 SLK 320 MT6
Location: Lake In The Hills,IL
Posts: 4,477
Likely this is switches - pre-01 seems to have this problem now and then.
__________________
Kirill
Kirill is offline   Reply With Quote
Old 07-13-2007, 06:45 AM   #6 (permalink)
BenzWorld Junior Member
 
Date registered: Jul 2007
Vehicle: 1998 SLK 230
Location: Green Bay, WI
Posts: 10
Thanks for your pointers. The fluid is good and there are no apparent leaks. I am suspecting the microswitches also. One observation is that it has failed in 2 different positions. The most common failure is that the rear trunk lifts up and the top unlatches but it does not retract. The motor (pump) continues to run at this point. I would suspect the first switch that the rear lid hits because it is not saying "my trunk is out of the way, you can fold the top down". The second failure is in trying to put the top back up - the trunk lid raises but the roof does not come up and the motor continues to run. Here again, if that trunk switch is failing, the switch says "I don't see the trunk lid up all the way so it does not let the roof start to raise." Sound logical??

Thanks
Mike
mbenoashwaubenon is offline   Reply With Quote
Old 07-13-2007, 01:08 PM   #7 (permalink)
BenzWorld Junior Member
 
Date registered: Sep 2006
Posts: 13
Mbenoash,

I am having the exact same problems with my SLK. It is getting locked in the same positions as yours. Fortunetly I was able to get it back up without having to do it manually, oddly enough after about a 10 minute break I hit the switch and it went back on it's own.

I'm hoping I can solve this without taking it to the stealership :/
benzsesco is offline   Reply With Quote
Old 07-15-2007, 08:20 AM   #8 (permalink)
BenzWorld Junior Member
 
Date registered: Jul 2007
Vehicle: 1998 SLK 230
Location: Green Bay, WI
Posts: 10
top problem

Working on my top problem. At the pump, there is a plug with 8 wires in it (it is a 13 pin plug). By the colors it appears that these go to the microswitches. If I could identify which wires go to which switch, I could get the car in the "problem mode" and then start jumpering the wires and when the top moves, I would know which switch was open. Make sense? Does anyone know where I coud get that wire color information?

Hope you are all having a great day.

Thanks
Mike
mbenoashwaubenon is offline   Reply With Quote
Old 07-16-2007, 06:58 AM   #9 (permalink)
BenzWorld Junior Member
 
Date registered: Jul 2007
Vehicle: 1998 SLK 230
Location: Green Bay, WI
Posts: 10
I've got it!!!

O MY!!!!

I bow to Bazzle, the god of the SLK and to all else that is holy. This is exactly what I needed. I raced out to the garage and started testing and I have identified the pair of switches in the top of the windshield and I also got one "misfire" on the other single switch that senses the top being in place when it closes. Thank you so much and I wish I would have had better luck searching and wouldn't have had to bother you. Obviously I came across many of your other posts that were very helpful. Can I ask where I could purchase this information for the entire car?

Thank you again,
Mike
mbenoashwaubenon is offline   Reply With Quote
Old 07-20-2008, 09:20 PM   #10 (permalink)
BenzWorld Junior Member
 
Date registered: Dec 2006
Vehicle: 1999 230SLK
Location: Reston VA
Posts: 17
rasoul, I have the problem where the rear side (small) windows will not raise. Can you tell me which switch you replaced to fix this problem?
wilko is offline   Reply With Quote
Reply

  Mercedes-Benz Forum > Mercedes-Benz Roadster Forums > R170 SLK Class

Bookmarks



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Topic Author Forum Replies Last Post
SLK 230 top nijmegenguy R170 SLK Class 35 03-19-2011 06:45 PM
What's your top speed on SLK 230 BMWGuy R170 SLK Class 2 08-01-2010 07:57 AM
Help! SLK 230 Convertible Top. SamiSLK230 R170 SLK Class 5 08-03-2008 11:29 PM
More SLK 230 Top Problems eagle38 R170 SLK Class 1 05-28-2007 03:18 PM
SLK 230 Top Speed Virtual Cosmic R170 SLK Class 13 01-14-2004 06:29 PM


All times are GMT -7. The time now is 07:45 AM.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.1

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.