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Wales
by Joske Vermeule, September 1
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Forums39
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Jun 14th, 2026
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Joined: Sep 2006
Posts: 561
Talk Morgan Regular
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OP
Talk Morgan Regular
Joined: Sep 2006
Posts: 561 |
My S4 Aero has developed a new problem - at night the headlights (full & dip) intermittently go out, then come back on. The duration is a second or two - irritating in town but potentially very interesting in the country!  Anyone come across this before - could it be as simple as a faulty switch? 
New joints for old!
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Joined: Jul 2007
Posts: 3,841 Likes: 11
le Asbo du Bling Talk Morgan Addict
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le Asbo du Bling Talk Morgan Addict
Joined: Jul 2007
Posts: 3,841 Likes: 11 |
That's a worrying development. Have you spoken to the factory? Maybe the factory should start providing these. 
Slowly going green
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Joined: Aug 2006
Posts: 7,934 Likes: 133
Talk Morgan Guru
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Talk Morgan Guru
Joined: Aug 2006
Posts: 7,934 Likes: 133 |
Have you noticed if they do it on smooth roads?
From the sound of it, I'd say it was a loose wire but if so, it should be more pronounced on uneven surfaces.
Another test would be to leave the car running, with the lights on, and keep it stationary. If they still flicker, I'd put it down to an issue with the ECU or one of the other control modules. If they don't flicker, it would seem to support the loose connection / wire theory.
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Joined: Sep 2006
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Talk Morgan Regular
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Smooth roads around London.........!!!!  Didn't seem to make much difference, but have just rebooted the ECU and the problem seems to have gone when I went for a test drive last night. Maybe it was  Next week will be visiting BHM for a diagnostic check - will keep you posted 
New joints for old!
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Joined: Sep 2006
Posts: 7,363
Talk Morgan Guru
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Talk Morgan Guru
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Next week will be visiting BHM for a diagnostic check - will keep you posted I think a trip to the works is called for Bill, no doubt Mark (Baldwin) will sort your residual problems out tout suite!   Best wishes Brian
Brian
1970 Morgan Plus 8 - Moss Box (Indigo Blue)
2014 Morgan SP1 (Rocket Red)
2015 Morgan Plus 8 (Rocket Blue)
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Joined: Jul 2007
Posts: 3,841 Likes: 11
le Asbo du Bling Talk Morgan Addict
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le Asbo du Bling Talk Morgan Addict
Joined: Jul 2007
Posts: 3,841 Likes: 11 |
I think a trip to the works is called for Bill, no doubt Mark (Baldwin) will sort your residual problems out tout suite! Certainly did mine, after the extended stay at a nameless dealer for the problem to re-emerge on the way home.
Slowly going green
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Joined: Sep 2006
Posts: 4,564
NGUNS!! Part of the Furniture
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NGUNS!! Part of the Furniture
Joined: Sep 2006
Posts: 4,564 |
My S4 Aero has developed a new problem - at night the headlights (full & dip) intermittently go out, then come back on. The duration is a second or two - irritating in town but potentially very interesting in the country! Anyone come across this before - could it be as simple as a faulty switch? When this happens Bill, are you by any chance turning the rotating knob to the right of the steering wheel? If so, I think I know the problem 
Cheers
BtG
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Joined: Nov 2009
Posts: 105
L - Learner Plates On
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L - Learner Plates On
Joined: Nov 2009
Posts: 105 |
My S4 Aero has developed a new problem - at night the headlights (full & dip) intermittently go out, then come back on. The duration is a second or two - irritating in town but potentially very interesting in the country! Anyone come across this before - could it be as simple as a faulty switch? When this happens Bill, are you by any chance turning the rotating knob to the right of the steering wheel? If so, I think I know the problem I have had this exact problem: headlights flicker when adjusting the dashboard brightness control. When you say you know the problem do you mean you've experienced the problem or that you know the cause/solution? David
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Joined: Sep 2006
Posts: 4,564
NGUNS!! Part of the Furniture
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NGUNS!! Part of the Furniture
Joined: Sep 2006
Posts: 4,564 |
My S4 Aero has developed a new problem - at night the headlights (full & dip) intermittently go out, then come back on. The duration is a second or two - irritating in town but potentially very interesting in the country! Anyone come across this before - could it be as simple as a faulty switch? When this happens Bill, are you by any chance turning the rotating knob to the right of the steering wheel? If so, I think I know the problem I have had this exact problem: headlights flicker when adjusting the dashboard brightness control. When you say you know the problem do you mean you've experienced the problem or that you know the cause/solution? David Sorry David, tongue in cheek, I was referring to the lights on/off switch 
Cheers
BtG
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Joined: Sep 2006
Posts: 561
Talk Morgan Regular
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Talk Morgan Regular
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Posts: 561 |
Also noted similar effect when I close my eyes momentarily........
New joints for old!
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