2010 A4 right and left dipped headlight issue
07-03-2018, 01:19 PM
#1
AudiWorld Newcomer
Thread Starter
Join Date: Jul 2018
Posts: 4
Likes: 0
Received 0 Likes
on
0 Posts
2010 A4 right and left dipped headlight issue
Hey guys. This is driving me insane so I hope you can help me. I’m getting both right and left dipped headlight message followed by both headlights cutting off. I’ve replaced both bulbs and ballasts (one ballast OEM and one aftermarket) and they’re still cutting off followed by the messages. They will come on if I cut them off and on, only to go off about 30 seconds later. Is it possible because I used 8k bulbs instead of factory 4K they’re not working? Or because of one aftermarket ballast? Any suggestions would be awesome! Thanks!
07-10-2018, 07:52 AM
#2
AudiWorld Super User
I had my right headlight cut out on me and those kind of messages come up several months back. Ordered a new bulb but when I drove it next and ever since, it's been fine. I assume some kind of electrical issue, but I have no speculation on what it could be. I didn't bother changing the headlight bulb on the right since it's still working.
There's a ton if stuff to review in a google search for "audi a4 b8 headlight dipped". Many seem to come back as a bulb problem. It seems an odd message for "bulb out". Dipped would seem to me to be about the auto-leveling system. I wonder if in replacing your ballasts, the auto-leveling system is going out of range from it's prior calibration.
But every thread in that search seems to come back bulb or ballast. Do you not have a legit OEM 4300K D3S bulb to try on one side? Maybe you got some bulbs that are too much wattage and overdrawing the ballasts. The OSRAM OEM part number replacements I picked up are marked as only 35W.
There's a ton if stuff to review in a google search for "audi a4 b8 headlight dipped". Many seem to come back as a bulb problem. It seems an odd message for "bulb out". Dipped would seem to me to be about the auto-leveling system. I wonder if in replacing your ballasts, the auto-leveling system is going out of range from it's prior calibration.
But every thread in that search seems to come back bulb or ballast. Do you not have a legit OEM 4300K D3S bulb to try on one side? Maybe you got some bulbs that are too much wattage and overdrawing the ballasts. The OSRAM OEM part number replacements I picked up are marked as only 35W.
07-10-2018, 08:50 AM
#3
AudiWorld Newcomer
Thread Starter
Join Date: Jul 2018
Posts: 4
Likes: 0
Received 0 Likes
on
0 Posts
I had my right headlight cut out on me and those kind of messages come up several months back. Ordered a new bulb but when I drove it next and ever since, it's been fine. I assume some kind of electrical issue, but I have no speculation on what it could be. I didn't bother changing the headlight bulb on the right since it's still working.
There's a ton if stuff to review in a google search for "audi a4 b8 headlight dipped". Many seem to come back as a bulb problem. It seems an odd message for "bulb out". Dipped would seem to me to be about the auto-leveling system. I wonder if in replacing your ballasts, the auto-leveling system is going out of range from it's prior calibration.
But every thread in that search seems to come back bulb or ballast. Do you not have a legit OEM 4300K D3S bulb to try on one side? Maybe you got some bulbs that are too much wattage and overdrawing the ballasts. The OSRAM OEM part number replacements I picked up are marked as only 35W.
There's a ton if stuff to review in a google search for "audi a4 b8 headlight dipped". Many seem to come back as a bulb problem. It seems an odd message for "bulb out". Dipped would seem to me to be about the auto-leveling system. I wonder if in replacing your ballasts, the auto-leveling system is going out of range from it's prior calibration.
But every thread in that search seems to come back bulb or ballast. Do you not have a legit OEM 4300K D3S bulb to try on one side? Maybe you got some bulbs that are too much wattage and overdrawing the ballasts. The OSRAM OEM part number replacements I picked up are marked as only 35W.
07-10-2018, 09:09 AM
#4
AudiWorld Super User
Yeah, the J343/J344 headlamp control module and the J667/J668 headlamp power output stage are integrated into the headlamp unit.
But all inputs to both headlamps come from the J519 vehicle electrical system control module. So if the issue continues to be both lamps, you might need to start looking at that unit. Looks like the J519 is the center of the electrical universe in that car, so hopefully it's nothing with it.
Then you get into the realm of glitches and wonder if some input control is flaking out and the J519 is turning off the lamps thinking it's supposed to.
But all inputs to both headlamps come from the J519 vehicle electrical system control module. So if the issue continues to be both lamps, you might need to start looking at that unit. Looks like the J519 is the center of the electrical universe in that car, so hopefully it's nothing with it.
Then you get into the realm of glitches and wonder if some input control is flaking out and the J519 is turning off the lamps thinking it's supposed to.
07-10-2018, 10:04 AM
#5
AudiWorld Newcomer
Thread Starter
Join Date: Jul 2018
Posts: 4
Likes: 0
Received 0 Likes
on
0 Posts
Yeah, the J343/J344 headlamp control module and the J667/J668 headlamp power output stage are integrated into the headlamp unit.
But all inputs to both headlamps come from the J519 vehicle electrical system control module. So if the issue continues to be both lamps, you might need to start looking at that unit. Looks like the J519 is the center of the electrical universe in that car, so hopefully it's nothing with it.
Then you get into the realm of glitches and wonder if some input control is flaking out and the J519 is turning off the lamps thinking it's supposed to.
But all inputs to both headlamps come from the J519 vehicle electrical system control module. So if the issue continues to be both lamps, you might need to start looking at that unit. Looks like the J519 is the center of the electrical universe in that car, so hopefully it's nothing with it.
Then you get into the realm of glitches and wonder if some input control is flaking out and the J519 is turning off the lamps thinking it's supposed to.
ok ok so it would be possible to replace just those modules?
07-10-2018, 10:29 AM
#6
AudiWorld Super User
Never had mine apart to look at it. ETKA shows several module parts separate from the complete headlamp.
https://nemigaparts.com/cat_spares/e...q/636u/941050/
6 is the J343/J344 headlamp control unit. Looking at the pictures on ECS: https://www.ecstuning.com/Audi-B8_A4...enon_Hardware/
it seems 6 J343/J344 is the "ballast". So if you've been playing with the ballast, you're already playing with the J343/J344 headlamp control unit.
I wonder why they use two J terms though it seems to be the same part left and right.
There are two other control units, one for the LED DYRL and one for the AFS cornering lamps.
There's nothing else it seems involved. J519 wires to the J343/J344 (the "ballast"), which the bulb plugs into, then the J343/J344 wires to ground.
https://nemigaparts.com/cat_spares/e...q/636u/941050/
6 is the J343/J344 headlamp control unit. Looking at the pictures on ECS: https://www.ecstuning.com/Audi-B8_A4...enon_Hardware/
it seems 6 J343/J344 is the "ballast". So if you've been playing with the ballast, you're already playing with the J343/J344 headlamp control unit.
I wonder why they use two J terms though it seems to be the same part left and right.
There are two other control units, one for the LED DYRL and one for the AFS cornering lamps.
There's nothing else it seems involved. J519 wires to the J343/J344 (the "ballast"), which the bulb plugs into, then the J343/J344 wires to ground.
07-10-2018, 11:29 AM
#7
AudiWorld Newcomer
Thread Starter
Join Date: Jul 2018
Posts: 4
Likes: 0
Received 0 Likes
on
0 Posts
Never had mine apart to look at it. ETKA shows several module parts separate from the complete headlamp.
https://nemigaparts.com/cat_spares/e...q/636u/941050/
6 is the J343/J344 headlamp control unit. Looking at the pictures on ECS: https://www.ecstuning.com/Audi-B8_A4...enon_Hardware/
it seems 6 J343/J344 is the "ballast". So if you've been playing with the ballast, you're already playing with the J343/J344 headlamp control unit.
I wonder why they use two J terms though it seems to be the same part left and right.
There are two other control units, one for the LED DYRL and one for the AFS cornering lamps.
There's nothing else it seems involved. J519 wires to the J343/J344 (the "ballast"), which the bulb plugs into, then the J343/J344 wires to ground.
https://nemigaparts.com/cat_spares/e...q/636u/941050/
6 is the J343/J344 headlamp control unit. Looking at the pictures on ECS: https://www.ecstuning.com/Audi-B8_A4...enon_Hardware/
it seems 6 J343/J344 is the "ballast". So if you've been playing with the ballast, you're already playing with the J343/J344 headlamp control unit.
I wonder why they use two J terms though it seems to be the same part left and right.
There are two other control units, one for the LED DYRL and one for the AFS cornering lamps.
There's nothing else it seems involved. J519 wires to the J343/J344 (the "ballast"), which the bulb plugs into, then the J343/J344 wires to ground.
Trending Topics
12-24-2020, 07:46 AM
#8
AudiWorld Junior Member
Hey guys. This is driving me insane so I hope you can help me. I’m getting both right and left dipped headlight message followed by both headlights cutting off. I’ve replaced both bulbs and ballasts (one ballast OEM and one aftermarket) and they’re still cutting off followed by the messages. They will come on if I cut them off and on, only to go off about 30 seconds later. Is it possible because I used 8k bulbs instead of factory 4K they’re not working? Or because of one aftermarket ballast? Any suggestions would be awesome! Thanks!
Thread
Thread Starter
Forum
Replies
Last Post
djrx
Q5/SQ5 MKI (8R) Discussion
5
02-09-2024 12:37 PM
nynyvtecjstkickdinyo
A4 (B6 Platform) Discussion
9
09-16-2006 08:54 PM
eqbos
A4 (B5 Platform) Discussion
1
12-25-2005 07:24 PM