S212 - turn signal indicators fail

[adrianb]

My 2010 E220CDI decided it would give me a hairy drive home last night when the turn signal indicators decided not to work, along with main beam and auto dipped beam activation. Traffic was light, so I decided it was OK to drive on, especially as few people seem to bother with indicating these days, but as a bit of a turn signal pedant, it felt very uncomfortable driving home and not indicating on changing lanes etc. even though I was very careful.
I've got two questions: first, was I stupid to carry on, should I have just called out recovery? Second; from a trawl around Prof Google before making this post, it seems that turn signal relays are a thing of the past and the most likely culprit might be the combination switch, or one of the other "brains" distributed around the electrical system. When I tested this morning, everything was behaving normally. Is this a common problem?
The car is going into the local Mercedes dealer for rear subframe replacement on Wednesday.

 

[PhilK]

Sorry for the late reply but I only just joined the forum. My 2014 E220CDI pulled the same trick a couple of years back. Twice in fact, a couple of days apart. I never did get to the bottom of it but switching the car off, key out and back in fixed it both times. No re occurrence since.

Were you right to carry on? First time I did so too, second time with the family on board I found a layby to stop and start the engine. Either way everyone got home with no further damage so I would say "yes".