Hi Bill, my name isXXXXX key does not reset the system I think that was just a coincidence. It sounds like the problem is with the micro switch for the boot that senses when the boot is fully opened. I would inspect the switch and see if it has come loose. I have attached a picture of the location of the micro switch below. Let me know if you need more help with this.
Thank you for your response. I located the switch (well I think I have) its at right angles to the light bulb holder in the rear offside rear light housing, I presume I'm right. It is fitted as it should clipped firmly to the bracket and clicks so nothing loose or broken there, also no sign of any water damage in fact it looks very clean. I know a fault could lay within, is the cost of replacing this switch of little expense and a worthwhile try as a diagnostic check is £48 + vat just to tell me a switch is at fault? I am afraid to try and open the roof in case this plays up again. If it does is there anyway to overcome this switch to at least close the roof?
Due to being away with work commitments and the bad weather I have only just been able to install the new switch, unfortunately I still the problem. Opened fine. Again when I tried to close the roof the boot lid opened but the roof and rear window panel didn't raise. I tried 3 or 4 times with no luck then the boot lid jammed in place and wouldn't even close, so I was left with the boot in the open position and the pump motor not even running.
Having then left the car for 10 minutes I then tried again and the roof worked correctly. Any clues? Bill
SLK 170 roof fails to close after driving.
Further to first question and suggestion. I've change the boot limit switch as suggested but the fault is still there. I've changed the relay on the hydraulic pump and the roof worked fine several times stationary and after a short journey but after a 30 minute or so drive when trying to close the roof the boot opens correctly but after that the parcel shelf fails to lift and also the roof. If I continue to try the switch the boot lid jams open. If I then leave it for 10 minutes and try again it will close as it should and even reopen and close reopen and close as many times as I wish. The problem only happens after a drive, could it be related to a heat sensor or a speed sensor?
Thank you for getting in touch I thought I'd run out of time on my question, hopefully you had a good vacation.
It baffles me as to why the roof continues to work time after time when parked until the next drive out and then it happens again for that first closure, extremely embarrassing when parking up somewhere. The link you gave me Marty seems to have fallen off line, I get an error message appear when I try to open it. It did work before as I printed the sheet on the boot limit switch. Could you please send the link again with your list of possible malfunctions and I'll check them out. Many thanks Bill.
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Thank you Marty I've saved the link but some of the images fail to show on the site, it maybe a problem my end. I'll strip the boot lining out and have a good look at the switches and power cables. Many thanks Bill.