SL/R230: Corroded boot closure sensors
Just been told by MB dealer that it will cost £500/600 to sort!
Is it easy to get at them and clean these sensors?
Boot closes securely, but system flags up a malfunction.
Other alternative would be to disconnect/deactivate so it doesn't trigger the
system - is that possible??
The switch assembly can be purchased as part number 230-820-56-10. It cost around 50 quid. Since your existing ones can be removed and replaced, perhaps they can be cleaned.
You'll need to unbolt the latch mechanism from the boot lid (picture). There is a write-up of the simple procedure here: https://mbworld.org/forums/4121634-post1.html
The two switches in the assembly terminate in a 14-socket electrical connector located in the left corner of the boot. As a last resort grounding these may eliminate the error message and roof operation, but automatic trunk pull-down/latching probably would not work, and there may be unforseen side effects.
Last edited by seven_out; Mar 28, 2014 at 09:55 PM.


