flickering Xenon headlights issue

Rick-sta · 15th August 2018, 14:34

Hi all,

Just asking on here to see if I can help out a customer. Early this year he purchased a set of angel eye quad Xenon headlights from me. When we fitted them for some reason the headlights kept on flickering now and again. They would flicker once as a time, both headlights would flicker completely in sync with each other and they would flicker once every 4-5 seconds on average, but sometimes there could be big gaps before they flicker again.

The headlights were tested on my car just to ensure there wasn't an issue with the headlights, and the headlights work fine so there seems to be an issue somewhere on the customer's car.

One thing I did noticed when we reinstalled his halogen projector lights is that his headlights seem to get slightly brighter when I increase the engine revs, this is particularly noticeable when the main beams are switched on.

Well over the last 4-5 months he's taken the car to 3 or 4 different auto electricians and all of them can't seem to find the issue. They've tried cleaning the earth terminals, changing the battery and recently replaced the alternator in case it was an issue there but none of this has resolved the issue. Wiring has also been checked to ensure there are no breaks or damage anywhere.

Any ideas what could be causing this? It's a really bazaar issue that I've never come across on any other 75/ZT I've worked on. The only thing he hasn't changed is the LSM but could a faulty LSM cause such issue?

Cheers
Rick

Mickyboy · 15th August 2018, 14:38

First thing I’d do mate would be to clean the LSM pins mate

Mick

15th August 2018, 14:34	#1
Rick-sta This is my second home MG ZT 2.0 CDTI+ in Typhoon, MG TF 135 in Typhoon & Rover 75 Connoisseur CDTI SE in Pearl Black Join Date: Oct 2012 Location: Norfolk Posts: 7,534 Thanks: 2,718 Thanked 2,827 Times in 1,462 Posts	flickering Xenon headlights issue Hi all, Just asking on here to see if I can help out a customer. Early this year he purchased a set of angel eye quad Xenon headlights from me. When we fitted them for some reason the headlights kept on flickering now and again. They would flicker once as a time, both headlights would flicker completely in sync with each other and they would flicker once every 4-5 seconds on average, but sometimes there could be big gaps before they flicker again. The headlights were tested on my car just to ensure there wasn't an issue with the headlights, and the headlights work fine so there seems to be an issue somewhere on the customer's car. One thing I did noticed when we reinstalled his halogen projector lights is that his headlights seem to get slightly brighter when I increase the engine revs, this is particularly noticeable when the main beams are switched on. Well over the last 4-5 months he's taken the car to 3 or 4 different auto electricians and all of them can't seem to find the issue. They've tried cleaning the earth terminals, changing the battery and recently replaced the alternator in case it was an issue there but none of this has resolved the issue. Wiring has also been checked to ensure there are no breaks or damage anywhere. Any ideas what could be causing this? It's a really bazaar issue that I've never come across on any other 75/ZT I've worked on. The only thing he hasn't changed is the LSM but could a faulty LSM cause such issue? Cheers Rick __________________ How to retrofit Cruise Control on a diesel with no OEM wiring in place: Link How to retrofit heated electric memory seats with no OEM wiring in place: Link How to operate FBH and ATC via text Link How to restore cloudy projector headlights Link

15th August 2018, 14:38	#2
Mickyboy SERVICING AND DEALER DIAGNOSTICS MG ZT CDTI 135 + & MGZT CDTI AUTO 160 & ROVER 75 TOURER CDTI 160 TROPHY YELLOW Join Date: Aug 2013 Location: Hernebay Posts: 4,331 Thanks: 818 Thanked 2,414 Times in 1,141 Posts	First thing I’d do mate would be to clean the LSM pins mate Mick __________________ [SIGPIC][/SIGPIC] T4 Owner Jobs done : new UBP, Spy hole mod, Rear hub(wheel bearing),plenum cleaned and emptied, Inline thermostat fitted,Full service, In car Digital tv/DVD Bluetooth Satnav etc, Replaced UBP, Restored headlights,Fixed airbag connection.replaced HP pump,replaced rear light seals,changed intercooler O rings. Jobs to do: ,replace drivers lock,.[/SIZE]