FX4 and LED Headlights

[Rotorhead451]

Tomorrow afternoon, I have a scheduled appt at the dealership; they claim that they can adjust my headlights "laterally" as well as up-n-down. I still have the OEM bulbs installed, and will replace bulbs after the dealer tries his best to fix it. I also still have my Highway Safety report with ID number . . .

 

[wojo23323]

I installed the Ravmix LED bulbs in the low and high beam and the Beamtech in the fog lights. They look and work great and are much brighter. However, when Auto Stop / Start turns the engine back on, the DRL and low beams flicker for a split second. What could cause this?

 

[Rotorhead451]

Looks like we share twin vehicles!! I don't know about the flicker, except that I've read references to it in other previous posts. Maybe someone with better G-2 will chime in shortly.

My dealer said that there was ways to adjust lateral movement with the lights. My beams DID need to be adjusted, and while the Espy was in the shop, they did an update on the ASS system; seems to resume RPMs more smoothly than before.

 

[JohnT]

I installed the Ravmix LED bulbs in the low and high beam and the Beamtech in the fog lights. They look and work great and are much brighter. However, when Auto Stop / Start turns the engine back on, the DRL and low beams flicker for a split second. What could cause this?

I just installed same and noticed this on first start in the garage, auto S/S I haven't noticed yet as it's only been driven in the day, I will keep an eye on it.

I am guessing the LEDs respond way faster to the power cut off when starter is engaged. All modern cars do this, they cut power for an instant to all non critical loads to maximize the amperage available to the starter.

The halogens take a second to cool down, watch your front indicators blinking, they are halogens and they dont on/off, they fade in and out. So I guess what you are seeing is the difference between a halogen that fades out but the power comes back before its dimmed a lot and a LED that turns off instantly.

A big capacitor would resolve this and I'd bet dollars to donuts that the official LED headlamp assembly has a capacitor bank built in to maintain power while the starter operates.

 

[wojo23323]

Looks like we share twin vehicles!! I don't know about the flicker, except that I've read references to it in other previous posts. Maybe someone with better G-2 will chime in shortly.

My dealer said that there was ways to adjust lateral movement with the lights. My beams DID need to be adjusted, and while the Espy was in the shop, they did an update on the ASS system; seems to resume RPMs more smoothly than before.

I’m going to have to see if they will do an update to my auto stop / start system. When it auto starts at a stop light, the vehicle seems to jump. It’s not a smooth stop / start at all and it’s very noticeable. I really don’t like the system and would like to permanently disable it.

 

[wojo23323]

I just installed same and noticed this on first start in the garage, auto S/S I haven't noticed yet as it's only been driven in the day, I will keep an eye on it.

I am guessing the LEDs respond way faster to the power cut off when starter is engaged. All modern cars do this, they cut power for an instant to all non critical loads to maximize the amperage available to the starter.

The halogens take a second to cool down, watch your front indicators blinking, they are halogens and they dont on/off, they fade in and out. So I guess what you are seeing is the difference between a halogen that fades out but the power comes back before its dimmed a lot and a LED that turns off instantly.

A big capacitor would resolve this and I'd bet dollars to donuts that the official LED headlamp assembly has a capacitor bank built in to maintain power while the starter operates.

I was thinking the same thing about a capacitor.

 

[JohnT]

I’m going to have to see if they will do an update to my auto stop / start system. When it auto starts at a stop light, the vehicle seems to jump. It’s not a smooth stop / start at all and it’s very noticeable. I really don’t like the system and would like to permanently disable it.

AFAIK its buried in the advanced menu system, only available when stopped

Advanced Settings >> Vehicle >> Auto Engine Off


http://www.fordservicecontent.com/F...etCode=US&languageCode=EN&VIN=&userMarket=USA

 

[wojo23323]

AFAIK its buried in the advanced menu system, only available when stopped

Advanced Settings >> Vehicle >> Auto Engine Off


http://www.fordservicecontent.com/F...etCode=US&languageCode=EN&VIN=&userMarket=USA

I do not have the option of Auto Engine Off.

 

[Rotorhead451]

Nor do I . . .

 

[JohnT]

hmmmmm let me check, sure I saw it there, maybe a SoCal thing?