Hello,

I have had my Passat B8 2.0L GT Estate for over a year now.
I have two intermitant faults.
1. After pumping the brake pedal until its hard then starting the car the pedal sinks after anything up to 30 seconds.
2. Glow plug light comes on shortly after starting the car up in the morning and goes into limp mode. ( happened about 8 times this year)

Both faults are intermitant and in the morning on first startup and never at any other time.
It has been to the VW main dealer for a service at 88000 miles and they told me it was the turbo actuator that was faulty at a cost of over £400 to replace, but they also kindly told me it might be the Turbo.
As it only happened a few times and only on startup I declined the repair work.
I think its a intermittant vacume fault, has anyone any ideas or know of a vacume diagram for this car then I may be able to find the culprit.

Many thanks