2014 tdi q7 headlight dip

rbarrs77

Member
Joined
Jul 29, 2014
Location
westchester ny
TDI
2014 Q7
Hi all just bought a 2014 q7 tdi and i notice the driver side healight is dim and purple toned. i did a few times also get a dash notification for headlight dip.
 

oilhammer

Certified Volkswagen Nut & Vendor
Joined
Dec 11, 2001
Location
outside St Louis, MO
TDI
There are just too many to list....
OBD means On Board Diagnostics

DTC means Diagnostic Trouble Code

So this means you need to use a scan tool to "ask" the car's modules, in this case the headlight range control or whatever it is called, what is troubling it.

That car has a $1600 headlamp, it most certainly can tell the controllers what ails it. Although in many cases, the fix means replacement of the assembly, because they do not sell parts inside of them (and you couldn't get them apart to replace anyway).

To clarify, the headlamp list price is about $1250, and it does not come with a ballast, that part is about $350.
 
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oilhammer

Certified Volkswagen Nut & Vendor
Joined
Dec 11, 2001
Location
outside St Louis, MO
TDI
There are just too many to list....
I think OBD works, and that is where I would start. But if you want to throw a $350 ballast at it on a guess, you certainly can.
 
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