R230 SL roof microswitches

[W169A180CDI]

I had an issue recently where the roof on my R230 SL went down as normal, but would not go back up - showing 'Visit Workshop.' Not great!
Fortunately, after waiting 15 minutes or so and re trying, it went back up.
A Star diagnostic threw up fault code B1197 - S69/1 closed limit switch (right pin) and S69/11 raised/lowered limit switch (switching stauts is implausible)

S69/1 is on the front windscreen rail anmd S69/11 is in the offside C pillar area.

I asked my MB dealer about obtaining replacement switches, but am still waiting for an answer. Do anyone know if these microswitches be bought separately and replaced easily?
Many thanks.

 

[Blobcat]

Try cleaning with contact cleaner first is what I'd be doing

 

[star]

Limit switches rarely fail, I’d be taking it to a merc indie to check. Too many faults to be accurate with that read.