Facelift headlight not adjusting with motor

goltho · 25th December 2023, 23:27

Merry Christmas to one & all. Not been on for quite a while due to unforeseen circumstances (my lovely new saloon has remained... a lovely new saloon and not given one iota of trouble for the last 6 months!). That is until a couple of weeks ago.

The driver's side headlight doesn't adjust electrically although it sounds as if the motor is in fact operating. Both dip and main beam are fixed at way too low i.e. scraping the ground.

Assuming it's not wiring, what's the drill for checking the motor & adjuster assembly? Thanks.

Dougie.

ceetdm · 26th December 2023, 01:05

Hi, have a look at posts 3, 7 and 8 in this link it is very likely you have a chaffed wire.

Tommy :-)

Arctic · 26th December 2023, 09:02

Quote:

Originally Posted by goltho

Merry Christmas to one & all. Not been on for quite a while due to unforeseen circumstances (my lovely new saloon has remained... a lovely new saloon and not given one iota of trouble for the last 6 months!). That is until a couple of weeks ago.

The driver's side headlight doesn't adjust electrically although it sounds as if the motor is in fact operating. Both dip and main beam are fixed at way too low i.e. scraping the ground.

Assuming it's not wiring, what's the drill for checking the motor & adjuster assembly? Thanks.

Dougie.

HI Dougie.
Merry Christmas to you and your family, check the wiring is not chaffing on the chassis arm drivers side, that can sometimes be the problem, it's bumper off unless you can see if it's trapped under the light from looking at the rear of the light, if it is you would still need to remove the bumper.

Put some protection cover under the wiring after you have repaired the chaffing if it is chaffed.

1

2

xsport · 26th December 2023, 13:27

Mery xmas to yours as well !! If that does not turn out to be the problem then its more than likely to be the swivel socket inside the light unit that has detatched. Once you turn on the light switch module as you may well know , the system does a check. That is , moving the lights inside the unit up and down. They detach if the adjusters are at max and pop out of the "claw". If you can hear the motor then this is probably what has happend. I have re-atached one using a lever from the outside of the light but its not an easy task without opening the unit up. There may be posts on here with some info if you do a search. Had the light feed wiring been damaged then you may well have seen signs in the lamps brightness or flickering . Lets hope its an easy fix. ...

goltho · 1st January 2024, 16:20

Thanks guys for the replies. I'd forgotten about the chafing wiring issue which I only ever had to check for once before some years ago but which had been done.

The forecast's better towards the end of the week so I'll dust off the woolly hat.

Dougie.

goltho · 10th February 2024, 12:26

So eventually I got around to this after being sidetracked by considering bulb upgrades and the various permutations that are available. Took the bumper off and - voila - found one of the canbus wires to be hanging by a thread which upon moving it, broke completely. So that was an easy repair. I came across a pair of headlights in top condition a few weeks ago for no money so snapped them up as they were in better condition than the existing ones. They're now fitted and all's well again.

I'm now in the process of working through LED/canbus issues whilst experimenting with bulb options. That's on another thread though.

Dougie.

25th December 2023, 23:27	#1
goltho Can't help myself Rover 75 CDTi 2005 Join Date: Jan 2018 Location: Lincoln Posts: 888 Thanks: 469 Thanked 150 Times in 113 Posts	Facelift headlight not adjusting with motor Merry Christmas to one & all. Not been on for quite a while due to unforeseen circumstances (my lovely new saloon has remained... a lovely new saloon and not given one iota of trouble for the last 6 months!). That is until a couple of weeks ago. The driver's side headlight doesn't adjust electrically although it sounds as if the motor is in fact operating. Both dip and main beam are fixed at way too low i.e. scraping the ground. Assuming it's not wiring, what's the drill for checking the motor & adjuster assembly? Thanks. Dougie. Last edited by goltho; 25th December 2023 at 23:30..

26th December 2023, 01:05	#2
ceetdm Loves to post Rover 75 CDTi Manual Saloon + Rover 75 CDTi Auto Saloon Join Date: May 2007 Location: Edinburgh Posts: 420 Thanks: 170 Thanked 42 Times in 33 Posts	Hi, have a look at posts 3, 7 and 8 in this link it is very likely you have a chaffed wire. Tommy :-) __________________ Rover 75 Saloon CDTi Contemporary SE +pack

26th December 2023, 13:27	#4
xsport Posted a thing or two rover 75 club se Join Date: Apr 2011 Location: Leicester Posts: 1,741 Thanks: 358 Thanked 419 Times in 310 Posts	Mery xmas to yours as well !! If that does not turn out to be the problem then its more than likely to be the swivel socket inside the light unit that has detatched. Once you turn on the light switch module as you may well know , the system does a check. That is , moving the lights inside the unit up and down. They detach if the adjusters are at max and pop out of the "claw". If you can hear the motor then this is probably what has happend. I have re-atached one using a lever from the outside of the light but its not an easy task without opening the unit up. There may be posts on here with some info if you do a search. Had the light feed wiring been damaged then you may well have seen signs in the lamps brightness or flickering . Lets hope its an easy fix. ... Last edited by xsport; 26th December 2023 at 13:31..

1st January 2024, 16:20	#5
goltho Can't help myself Rover 75 CDTi 2005 Join Date: Jan 2018 Location: Lincoln Posts: 888 Thanks: 469 Thanked 150 Times in 113 Posts	Thanks guys for the replies. I'd forgotten about the chafing wiring issue which I only ever had to check for once before some years ago but which had been done. The forecast's better towards the end of the week so I'll dust off the woolly hat. Dougie.

10th February 2024, 12:26	#6
goltho Can't help myself Rover 75 CDTi 2005 Join Date: Jan 2018 Location: Lincoln Posts: 888 Thanks: 469 Thanked 150 Times in 113 Posts	So eventually I got around to this after being sidetracked by considering bulb upgrades and the various permutations that are available. Took the bumper off and - voila - found one of the canbus wires to be hanging by a thread which upon moving it, broke completely. So that was an easy repair. I came across a pair of headlights in top condition a few weeks ago for no money so snapped them up as they were in better condition than the existing ones. They're now fitted and all's well again. I'm now in the process of working through LED/canbus issues whilst experimenting with bulb options. That's on another thread though. Dougie.