Evening all, just a quick one. Found a P0670 - glowplug control circuit failure - playing with 'Torque' on my phone a while back. I tested and found a dead glowplug so replaced it but the code wouldn't reset. I Googled a load of Renault forums and found it was the glowplug control relay module that was likely at fault and I've just replaced it (£80 from ebay ). Just retested and I didn't even need to reset the code - no stored faults found .
Full story here.
Full story here.