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10th March 2019, 15:30 | #1 |
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Rover 75 Connie SE CDTI Tourer, MGF and Triumph Bonneville America Join Date: Apr 2013
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Headlight high beam mot fail
Hi chaps. Just fixed most of my Mot fail items but what I thought was the simplest has turned out to be the most challenging.
Drivers side high beam is out. New bulb didn't work. Swapped working bulb from other side and didn't work. I now have three bulbs that all work LHS but not RHS. I have read about earthing or chaffing problems but how can I check these? Anyone experienced this and if so how did you solve it? Rover Connie CDTI tourer. |
10th March 2019, 15:41 | #2 | |
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10th March 2019, 15:58 | #3 |
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
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Check the wiring for the headlight. The wiring loom for the driver's side headlight can rub on the chassis arm which over time can cut the wires causing certain bulbs to not work.
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10th March 2019, 16:58 | #4 |
I really should get out more.......
Rover 75 Saloon Join Date: Jul 2011
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I too have experienced these particular gremlins https://www.the75andztclub.co.uk/for...d.php?t=279150
This was over a year ago and (touch wood) it's been fine ever since, not a clue as to why, but just happy they've stayed away. Regards Last edited by vitesse; 10th March 2019 at 16:58.. Reason: link |
10th March 2019, 18:02 | #5 |
This is my second home
R75 Saloon. Join Date: Feb 2009
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Mine was the light switch module. ( LSM. )
Unplugged the connector and sprayed the pins with WD 40. No problems since. ( 5 years plus. ) |
10th March 2019, 18:53 | #6 |
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Rover 75 Connie SE CDTI Tourer, MGF and Triumph Bonneville America Join Date: Apr 2013
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[QUOTE=Rick-sta;2718024]Check the wiring for the headlight. The wiring loom for the driver's side headlight can rub on the chassis arm which over time can cut the wires causing certain bulbs to not work.
Thank you for your helpful post. I can't quite understand where I should be looking. Is this photo very close to the multi plug just below main beam. Or is it somewhere out of view? If latter what do I need to remove in order to see it? |
11th March 2019, 16:26 | #7 | |
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
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[QUOTE=Dart2050;2718076]
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11th March 2019, 16:51 | #8 |
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Rover 75 Connie SE CDTI Tourer, MGF and Triumph Bonneville America Join Date: Apr 2013
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Fixed it!
So I took the front off (first time) removed headlight searching for chaffed wires. All ok. Whilst cleaning I thought the earth wires looked grubby. Removed cleaned replaced, tested and worked!
Surprised just one bulb refused to work due to dirty earth as all the other bulbs ok, but very pleased with myself. Can arrange mot retest now. |
11th March 2019, 17:15 | #9 |
This is my second home
Rover 75 Saloon CDTi Join Date: Oct 2015
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A simple fix is always the best !
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11th March 2019, 21:31 | #10 | |
This is my second home
R75 Saloon. Join Date: Feb 2009
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