Audi A4 2.0 Tdi glowplug flashing

[Stoive47]

Hi all,

The glowplug light on my '08 A4 has recently started flashing when the car is running and cold - as soon as it reaches normal running temperature it doesn't flash anymore .

As it's warming up the light only flashes when the engine is under load , but it pulls away perfectly well .

I've read stuff on other forums that it might be related to the brake lights coming on , or a dodgy brake-light switch , but they all appear to be normal and the brake lights don't come on when the glowplug light flashes .

Any ideas ?

Thanks

[Stoive47]

Thanks guys