[Vwdiesel] Dying Glow Plug Relays???

Matt matt_lisa at sprynet.com
Sat Aug 6 01:42:54 EDT 2005

I had the exact same problem.  I checked in the TDIclub forums, and  
found that the glow plug harness builds up slight corrosion over  
time.  This makes the resistance change slightly between the harness  
and the glow plugs.  When it gets a little out of spec, it throws a  

I found that cleaning the harness and squirting some contact cleaner/ 
penetrating oil in there worked wonders.  After that, I reset the  
light, and it hasn't been back.

Hope this helps,


On Aug 5, 2005, at 11:37 PM, paulr wrote:
> The  "second new" glow plug relay is throwing a check
> engine light!  It's the same code as before -- "16764 -
> Glow Plug/Heater (Q6) Circuit Malfunction P 0380 - 35-10
>   - Intermittent".  It also lasted about 3 weeks.

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