Hi,

I have Bi-xenon head lights with AFS.

A few month back, the high beam started to fail on the right headlight when I turned to the left. When I turned to the right it came back on again. The low beam is working. The display in the car showed that the high beam was not working.

 

Today, the high beam is not working at all on the right headlight, but the low beam is working fine.

 

Since it is the same bulb for both low and high beam and it registers a fault, the problem must be inside the headlight. Have anyone heard of anything similar? Is it possible to open the headlight and repair? Or is replacing the headlight the only option?

 

Thanks!

You need to check the signal to operate the electic shutter is getting to the headlight, you will need to have a multimeter and be ok to check wires in both sides (to compare)

Probably a broken wire, if not then the headlight does have a broken motor.

 

Left side headlight (as seen in direction of travel)

T14c a 14-pin connector, No.11 what should be Yellow White colour is the shutter wire

 

Right side headlight (as seen in direction of travel)

T14d a 14-pin connector, No.11 what should be Yellow Black colour is the shutter wire

 

Hopefully the above is correct, as depends on the exact headlights being fitted.

Edited 2 January, 20233 yr by varooom
Additional Information

2 hours ago, varooom said:

Right side headlight (as seen in direction of travel)

T14d a 14-pin connector, No.11 what should be Yellow Black colour is the shutter wire

Is this the connector that is going into the headlight or is it inside the headlight? Do you know if there is any wiring diagram available anywhere?

It's the headlight main connection on each, a 14-pin one.

 

I've decoded which pin to check so you don't have to, check colours of connection wires match.

 

Wiring diagrams available in full on erWin Skoda for 7 Euro for 1hr access if you need more.

 

The flipper gets the power from a central electronic controller inside car to send the signal to flip the shutter.  We need to test if signal makes it to headlight, and then test in other locations next.

I can measure the signal on the yellow black wire. Where do you suggest to look next?

12 minutes ago, niclask said:

I can measure the signal on the yellow black wire. Where do you suggest to look next?

Sorry can you explain in detail?

Have you measured both headlights on that wire?

 

Process is check both side, with dipped beam/high beam (check values on the two wires)

If you get output, the problem is inside headlight unit.

 

If the signal (power) is only reading on one side, then you need to go inside car to measure output of the J519 Central Electric Controller to check if that is working.

If it is providing power, then there is break between J519 and headlight loom.

Unfortunately I didn't have time or a place to investigate this further so i had the shop replace the headlight unit. It was pricey, about £670. I asked them to put the old headlight unit in the trunk so I could troubleshoot on my own.

 

I found one wire that had broke just by the connector. That also makes sense when i think of how i first noticed the problem. The high beam tuned on and off depending on how the light moved. The connector is the green one with the new yellow and old blue. I just soldered the old brown wire to the new and put som shrink tube over the joint.

 

I bought a pre crimped wire from Skoda and soldered that to the old cable. There are cheaper wires on the Internet... Search for 000 979 009 E.

 

 

Hi all, 

 

Just posting my experience of this same problem.

 

Left side high beams stopped working, fine on dipped.

 

Checked 12-wire connector to the headlight assemble as per Varooom's  advice above - power to yellow/white wire on full beam. I had to strip a scrap of wire and insert in the plug to test this, as my multimeter couldn't reach metal in this plug.

 

Located 2-wire connector inside light as per Niclask's photo above. Power to this connector on high beam only.

 

"Crap" I thought - suggests it's the motor/shutter and I'll have to figure out how the hell to get the light out to look some more.

 

Aggressively switchcleanered the blue 2-wire plug and it's socket, gently wiggled any bits of the internals that my fingers could get to and thankfully fullbeams started working again!

 

Phew!

 

Photo below is the 2-wire connector - brown+blue for me - likely as mine was the LHS light, right?

 

Thanks everyone!