Repeat and multiple glow plug failure - 3.0TDi

Evening all,

I bought a 2007MY car with 50k miles and FASH a month ago. During the pre-sale inspection, No.2 glow plug was found to be open circuit. It was replaced with a new OEM part supplied by TPS.

In this recent cold snap, I noticed that the car was a little reluctant to start and had VCDS hooked up to check all was well and found that No.2 glow plug is open circuit again, as is No.4 & No.5.

Any idea why a brand new glow plug should fail again so soon - literally no more than a couple of dozen starts, and also why there appears to have been a cascade effect causing the other two to fail?

No other fault codes appear, just those relating to the open-circuit glow plugs.

The car has a 3 month warranty, so I'm keen to get to the bottom of it and not be left with a lemon...

Many thanks,

Andrew

So, car going in for six new glow plugs under warranty on Friday - hoping that will sort it. Aside from a visual inspection looking for signs of heat damage, are there any other ways of checking the loom without physically testing the continuity of each and every core?