PHEV battery fully charged but engine still runs

[Bozz]

I thought EV mode always got priority 

[Nick72]

2 hours ago, Bozz said:

I thought EV mode always got priority 

Not the case in any PHEV. It will fire up seemingly randomly...

When it feels it needs to lubricate the engine and prevent things seizing.

When you accelerate hard on rare occasion unless auto HV/EV selected.

Going down a steep hill to provide engine braking.

Putting on the front demister as it's more efficient.

Etc.

 

[P_J]

I leave mine in EV mode, and it hasn't fired up once in nearly 4 weeks now. Over 700 miles on just EV in that time (my current record to date).