Thread: D4 Parking Sensor fault

Originally Posted by rapserv

The first is a constantly sounding (not beeping) reverse parking sensor when the vehicle is in reverse ...
The second issue is in relation to the headlights. They are Bi-Xenon

1. The sensor is picking up the rear wheel carrier and/or the towbar. Simply put a clear protector on like these Madico 11mm Vinyl Round Floor Protection | Bunnings Warehouse but cut it in half vertically and put it on the half of the sensor that looks towards the tow bar.
2. Bi-Xenon are brilliant. So much so that I haven't bothered to fit driving lights, which is the first time I haven't fitted them to a Landrover vehicle in 46 years! Mind you, I have Stedi LED in fill globes in lieu of the Halogen ones it came with. So, something is not right with yours. Others will offer better advice, but I suspect the ballast thingy may need replacing.

Are you sure they are xenons? Only way to tell is the silver heat sink and driver module that sits at the bottom of the headlight assembly. Should be just visible if looking at the back of the headlight. They should be much brighter than std halogen. Another issue could be dust ingress into the lens, a wooden skewer with a cotton ball soaked in metho tied on the end usually cleans them up nicely.

The globes do dull with time, i replaced one of mine and the difference was like night and day. Locally they are super expensive, I cant remember exactly but I think it was $300 for one globe. I bought a second new identical globe from Ebay UK for less than a $100.

Originally Posted by Eric SDV6SE

Are you sure they are xenons? Only way to tell is the silver heat sink and driver module that sits at the bottom of the headlight assembly. Should be just visible if looking at the back of the headlight. They should be much brighter than std halogen. Another issue could be dust ingress into the lens, a wooden skewer with a cotton ball soaked in metho tied on the end usually cleans them up nicely.

I haven't taken the lights out yet to see if there is a balun attached to the back .. however, I noted that their is a sticker/barcode on top of the light that says it's Bi-Xenon. I also noticed that the leds are a yellow colour which indicates they are DRL to my understanding. They are also quite dull if they are indeed DRL's

Originally Posted by kenl

The globes do dull with time, i replaced one of mine and the difference was like night and day. Locally they are super expensive, I cant remember exactly but I think it was $300 for one globe. I bought a second new identical globe from Ebay UK for less than a $100.

Over what sort of time frame?
These lights would be 7-8 years old now and I don't believe there has been too much night driving during this time.
I wonder which is more likely to fail .. the bulb or the balun?

I did mine last year, mine is a 2011 model, but for most of it's life the head lights have been on as I have it setup that way.

Originally Posted by rapserv

I haven't taken the lights out yet to see if there is a balun attached to the back .. however, I noted that their is a sticker/barcode on top of the light that says it's Bi-Xenon. I also noticed that the leds are a yellow colour which indicates they are DRL to my understanding. They are also quite dull if they are indeed DRL's

Hmm, reads to me the ballast is failing. Deals should be bright white led. See photo of mine. MY11 bi xenons, never touched those, but added the led copperhead infill bulbs from Stedi20191011_073843.jpg