I'm new here, it's my first post
My wife has a 2014 B-Max 1.6 petrol with auto gearbox. We have that car since 2017. Today when I was driving it, it suddenly made a strange metallic noise (that characteristic sound when two metal cogwheels are misaligned or something) and the car jiggled a bit. I looked in the mirror and I think there was a bit of smoke too (I'm not sure it was related though).
From that moment it started behaving weirdly. It refused to accelerate, the revs went up, but then suddenly the car shoot forward (like the clutch eventually found the grip). I just wanted to return home safely, so I drove it slowly, but the car kept jiggling slightly. Then when I approached the roundabout and came to a full stop, the engine almost stalled and I couldn't accelerate again.
I eventually made it home and in the evening (when the car cooled down) I decided to take it for a short spin to see what was happening exactly. At first, everything seemed ok, but after a while, it made that metallic cogwheel sound again and started jiggling (it's not very strong, but noticeable), even though I kept my foot steadily on the accelerator.
Any idea what that might be and where I should start investigating the problem?
Many thanks in advance for any tips.