I have a 54 plate 1.4 VW Polo bought 2nd hand from a business seller 119k miles (yes I know it's a lot)
It has randomly started just cutting out when driving - my apologies if any of the below sounds obvious or stupid but I am not great with cars and would appreciate any help possible.

About 2 weeks ago I was pulling into a storage facility and the engine just cut out although the electrics etc. were all still OK. I managed to restart it after a couple of attempts including revving the engine. It's been absolutely fine until now so I thought maybe I had just stalled it. I did also just have the exhaust manifold replaced (no idea if that helps).

Today driving to work it happened again, I slowed to go over a roundabout and it just cut out so I manged to limp it over and turn hazards on, again after 2 attempts including revving the engine it started - I got 200 yards down the road, it happened again - this time I was just driving at about 30mph, it was when I pressed the brake to slow in traffic that it cut out. I called my recovery company who asked me to try and turn it over, I did but it just started then died immediately after - it did this 2 or 3 times. I left it turned off while I waited for the recovery mechanic, and thought I would try one last time - low and behold it started again and kept running with no issues, the engine sounds fine and after the mechanic got to me, there was no fault to diagnose - he drove behind me for about 25 minutes to check it didn't happen again and it didn't - so I got to work OK, parked up - tried turning it over again when there just in case and it's fine.

What worries me is if this happens again on the motorway/in busy traffic - does anyone have any idea what this could be please?

Thanks so much!

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