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Old 24th November 2021, 16:24   #1
BRG75
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Default Possible Damp Problem.

Diesel Tourer, is this a damp problem, possibly with the Light Switch Module (LSM)?

Turning the ignition on, the instrument panel lights come on, but go out once the engine has been started. Currently this is intermittent. Panel lights all work AOK, when switched on.

This first happened (I believe) a couple of days ago.
I thought I observed the above, switched the ignition off, restarted the engine – all was as normal.

Today, an hour ago, it happened again. This time I was able to re-produce it, 3 times in quick succession.

Drove the car home, no issues; Switched engine off, restarted it – problem did not reappear.

The car does have a sunroof, but it has been sealed up for quite a while now.
We have not had any rain for about a week, and the car is in daily use, including most evenings.

I wonder if this is a specific recognised problem, or simply a typical damp issue.

I would say that the car is dry inside.

Comments welcomed.

Regards

Mike
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Presently
2004 75 CDTi auto Connoisseur Tourer - White Gold
2001 75 2.5 auto Connoisseur Saloon - White Gold

Previously
2002 75 1.8 auto Club SE,
2000 75 1.8 auto Classic SE (Company Car)
1997 420 (Company Car)
1996 216 cabriolet,
198? 213 VDP
1986 SD1 V8 VDP,
1968 2000TC,
1966 2000.
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Old 24th November 2021, 19:23   #2
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Default

Quote:
Originally Posted by BRG75 View Post
Diesel Tourer, is this a damp problem, possibly with the Light Switch Module (LSM)?

Turning the ignition on, the instrument panel lights come on, but go out once the engine has been started. Currently this is intermittent. Panel lights all work AOK, when switched on.

This first happened (I believe) a couple of days ago.
I thought I observed the above, switched the ignition off, restarted the engine – all was as normal.

Today, an hour ago, it happened again. This time I was able to re-produce it, 3 times in quick succession.

Drove the car home, no issues; Switched engine off, restarted it – problem did not reappear.

The car does have a sunroof, but it has been sealed up for quite a while now.
We have not had any rain for about a week, and the car is in daily use, including most evenings.

I wonder if this is a specific recognised problem, or simply a typical damp issue.

I would say that the car is dry inside.

Comments welcomed.

Regards

Mike
Looks ever so like the problem I had a few weeks ago - started in exactly the same way.
Eventually the majority of the lights failed. You can see my account on the general forum and how it was eventually cured by Terry Shaw of TS Autos - much to my relief!
All the best,

Nicholas/Zircon
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Old 24th November 2021, 19:40   #3
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I had the lights playing up too.--It was the connector pins in the LSM plug. Easy to get at.--I used WD 40 in the plug and on the pins. It cured it and has never re-appeared after many years of use now.--
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Old 24th November 2021, 21:06   #4
BRG75
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Many thanks Nicholas / Zircon.

I have just read your excellent write up, and will certainly be guided by this.

Similarly, assuming that I find something specific, I'll do the same.

Regards

Mike
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Presently
2004 75 CDTi auto Connoisseur Tourer - White Gold
2001 75 2.5 auto Connoisseur Saloon - White Gold

Previously
2002 75 1.8 auto Club SE,
2000 75 1.8 auto Classic SE (Company Car)
1997 420 (Company Car)
1996 216 cabriolet,
198? 213 VDP
1986 SD1 V8 VDP,
1968 2000TC,
1966 2000.
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