Greeted with an engine management light this morning, its P0673, which is the third glowplug with pressure sensor. 

 

Will change all four...i assume this is correct? 

 

Could it be anything else apart from glowplug itself, electric wiring or dirty sensor? 

 

Ive read there needs to be steps to be done by VCDS regarding the valves, can anyone link to this procedure? 

I got the glow plugs, all came out easy and new ones fitted. 

 

The pressure glowplug was £160 and other three only £18 each. Some differennce, whats the purpose of this expensive glow plug. 

 

Also im not sure what VCDS steps i need to perform, i read somewhere on the forum that learnt valves need to be reprogrammed

https://www.borgwarner.com/aftermarket/diesel-cold-start-ignition/pressure-sensor-glow-plugs

 

Mine was also changed as a full set. The pressure plug was only £70, but that was 6 years ago.😁