Morning all

 

thank you for letting me join. 
I have a superb estate 2.0TDi 150bhp (2018) with around 100k miles on the clock. 
Check engine light game on -

checked battery voltage and appears to be fine 

OBD2 code indicated glow plug control unit so replaced. code cleared. A couple of days later the fault appears to be back. 
I have read it could be the glow plugs or wiring. 
so was wondering if others had been this and what they had found to be the cause so a target steps logically. 
many thanks

rolo

Error code pls?

1 hour ago, ile7 said:

Error code pls?

P064C which comes up as glow plug control unit when a search for it

Did you change 527 relay?

Edited 8 December, 20241 yr by ile7

1 hour ago, ile7 said:

Did you change 527 relay?

Yes I did, fitted a new one. Cleared the code and 2 or so days later it has come back

Just got the same error myself, did you ever find the answer? Also did you have any issues with the engine starting? I have keyless start which sometimes doesn't fire