Mercedes benz slk r170 99 roof issues revisited about 3 years ago i posted about erratic roof behavior.
R170 slk roof problems.
They had to replace the hydraulic pump and relay of the retractable roof mechanism to solve the issue i d suggest you to begin changing only the relay first because it s the cheapest part.
In one episode they fixed and mercedes slk r170 with the same sympton.
No one had an answer but now that there are more owners experience its time to try again symptoms on chilly mornings 60 70 degrees roof will sometimes not open.
I remember a british tv show about restoring classic cars wheeler dealers.
The workaround i found is work the switch until the trunk opens.
These cars are getting quite old and sometimes the roof can be a bit fussy.
Learn how to manually raise the stuck roof of your slk applies to.
Slk 230 r170 1998 2004 rear engine transmission mount replacement.
I had trouble with my slk roof first thing the boot switch open the boot and raise it up now look where you push in the button to open the boot you will notice on the inside of the boot that when you press the button there is a bar that goes from the button down to the lock grip the bar and twist it it will make more sense when you open the boot promise now close the boot and the interior light will go out now the roof should work ok.
Mercedes benz 230 slk roof hydraulics v1 on vimeo join.
The roof seals unless replaced at some point might be quite tired too so the roof may let some water in when it rains adjustment and lubrication help.
I replaced the five vario roof hydraulic rams and tried to shoot a video of the process at the same time.
Slk 230 r170 1998 2004 head light and turn signal light replacement.
Along with the hydraulic system there is plenty of electronics to manage the roof on the r170.