Engine suddenly losing power

DS Automobiles DS 7 & DS 7 CROSSBACK
1

So yesterday I made the trip home after being away over Christmas.
The trip was roughly 500 km and during the first half I did both system update and map update. After that I stopped for gas, shutting the car entirely down.

Later, with only about 40km left home the engine suddenly started losing power (no battery left at this point).
I was doing about 110km/h (cruise active) and I noticed the car shifting down and struggling to keep the pace. I deactivated CC and tried giving power manually, but there wasn’t much response from the engine.
It wasn’t like the engine had died, just struggling a lot to keep the pace.
The car was down to 80-90km/h and kept losing power when I saw an off-ramp that I took. After that I pulled to the side of the road and turned the car completely off, waited for a minute and then started it up again. No problem with the engine after restart. No warning lamps or anything.
Drove the rest of the way a bit worried, but didn’t noticed anything more.
What the heck happened?
Did Microsoft make the OS for the car and it just needs a regular restart to work properly?

Something I’d probably call an engine icon flashed for a second during the part where it lost power, but it disappeared as quickly as it turned up. Never saw it again after that while the engine still was struggling.

2

Never experienced that kind of behavior front he engine!? Doesnt sound confidence inspiring though :frowning:
What could cause something similar, bad gasoline? How advanced is the timing of valves and ignition in our cars?
I’ll take a 1000km run by the 8th of January (500km each way).
If I get my car back from the workshop the 7th I’ll use it for the trip. Will get back to you with result.

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3

Sounds a bit like what we call “limp” mode in the UK.

The car has picked up a fault but goes into this mode to get you home or to a garage.

I would imagine this would of been recorded on the cars CPU, so perhaps have it plugged in at a dealership to see what might of been recorded.

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4

I have an appointment next week to fix the deer collision damages from back in September so I’ll ask them about it then.

5

I’ve never experienced such problem in my DS4 (pure petrol 1.6) and drove thousands of kilometers trough Poland, Italy and Sweden.
This year i’m going again to Sweden and Norway.
I have confidence in my car, I own it for about 2.5 year and 92000km.

I’ve experienced only typical issue with 1.6 Petrol - oil leak from top valve cover - happens on almost every Stellantis 1.6 Petrol Engine.

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