Limp mode. Boost issue or DPF?

[ClintL]

My Leon ST (2.0tdi) 2018 sometimes loses power on boost, and goes into limp mode. I've done a 200 mile round trip today taking it easy as it's raining heavily, but booted it down the on slip of the M18 and ping... Coil light + error message which said 'stop start error' and limp mode. Light are below.

I don't have a code reader, and I'm hoping it isn't too expensive to fix as I've just spent a fair amount on the suspension.

Can anyone point me in the right direction? Any common issues.

Car is driven daily, my work commute is 60 miles.

Sent from my SM-S911B using Tapatalk

 

[SuperV8]

That coil light is your glow plug warning light.
One of your glow plugs also has a cylinder pressure sensor - so maybe that is playing up?
You could really do with a fault code for a starting point.
You can get cheap Bluetooth OBD readers - and an app on your phone.

 

[DaveS]

The start/stop system gets disabled by many different errors related to the engine. Don't waste any time worrying about that one. The code reader is very useful in this situation. I use the OBD11 which is easy.

 

[BillyCool]

As above. Get a code reader. Well worth the money in my opinion. Will help you narrow it down.

I use Carista.

My old Mk1 Leon had a split in the boost pipe that would leak when I booted it and then go into limp mode.