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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: Mar 2017
Posts: 2,274 Likes: 41
Talk Morgan Expert
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Talk Morgan Expert
Joined: Mar 2017
Posts: 2,274 Likes: 41 |
I think that the immobiliser ring is the most likely, even though you had it replaced 2 years ago. Some have had this problem repeatedly and others not at all. So, it seem to be an unreliable component. I believe Dave W has given advice in the past about first holding the key against the ring for a few seconds and then starting within 30 seconds. I thought the immobiliser ring problem happened to certain Plus 4’s only. GDI’s.?
Craig Jezz
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Joined: Dec 2008
Posts: 22,366 Likes: 354
Roadster Guru Member of the Inner Circle
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Roadster Guru Member of the Inner Circle
Joined: Dec 2008
Posts: 22,366 Likes: 354 |
I think that the immobiliser ring is the most likely, even though you had it replaced 2 years ago. Some have had this problem repeatedly and others not at all. So, it seem to be an unreliable component. I believe Dave W has given advice in the past about first holding the key against the ring for a few seconds and then starting within 30 seconds. I thought the immobiliser ring problem happened to certain Plus 4’s only. GDI’s.? So far, nobody on TM with a 4/4 has recorded trouble with the ring, but only the dealers will know for sure.
DaveW
'05 Red Roadster S1
'16 Yellow (Not the only) Narrow AR GDI Plus 4
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Joined: Jun 2015
Posts: 2,093 Likes: 75
Talk Morgan Expert
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Talk Morgan Expert
Joined: Jun 2015
Posts: 2,093 Likes: 75 |
I think that the immobiliser ring is the most likely, even though you had it replaced 2 years ago. Some have had this problem repeatedly and others not at all. So, it seem to be an unreliable component. I believe Dave W has given advice in the past about first holding the key against the ring for a few seconds and then starting within 30 seconds. I thought the immobiliser ring problem happened to certain Plus 4’s only. GDI’s.? Sorry, I never checked that out....mea culpa!
Doug
2011 Plus 4 in Rich Maroon
1972 750 “ComDom” sprinter
1958 Triton 650
1992 Triumph Trophy 900
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Joined: Apr 2017
Posts: 1,799 Likes: 4
Talk Morgan Enthusiast
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Talk Morgan Enthusiast
Joined: Apr 2017
Posts: 1,799 Likes: 4 |
Only asking....
Why would the immobiliser ring be different between the Plus 4 and the 4/4 of the same manufacturing years.
I can guess that the ECU might be different but I would have thought the steering column electrics and instrument electronics would probably be the same.
I'm asking so the immobiliser ring does not get ruled out of this diagnosis IF indeed it could happen.
Is it DEFINITE that the problem only occurs on the Plus 4 ??
Bob
2009 Black Roadster
1999 4/4 2 litre Zetec
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Joined: Oct 2014
Posts: 5,017 Likes: 3
Charter Member
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OP
Charter Member
Joined: Oct 2014
Posts: 5,017 Likes: 3 |
Thank you all for your proposals! We found the problem, everything works well now  The starter relay had a bad connection to the socketI had checked all the fuses for poor contact before, but not the relays.
Hannes
once: Green M3W; 2013
now: Red 4/4 Sport; 2011
and some practical cars for use in real life
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