[Shay Whelan]

I am considering buying a 1989 Bentley Turbo R and I have noticed that none of the interior lights come on, including those within the dash. The exterior lights all work ok, as do the other electrics. Is there something I can try to resolve this or do I need to try changing fuses, relays?

 

[shadow 11]

I'm not familiar with Turbo R but in my Silver Shadow there's a dimmer switch, relay and fuse for the instrument panel lights.

 

[Shay Whelan]

Thank you for your advice. I will try locate the Dimmer Switch first. Your help is very much appreciated

 

[shadow 11]

Just follow the wires from the dimmer knob to the dimmer module and from the dimmer to the relay. There might be a fuseboard schematic at the fuses indicating which fuse feeds the fascia lights.

 

[szdowk]

Check fuse too. It is easy to burn it while replacing bulbs in some lamps.

 

[Shay Whelan]

Just follow the wires from the dimmer knob to the dimmer module and from the dimmer to the relay.

Thank you, I will try that

 

[Shay Whelan]

Check fuse too. It is easy to burn it while replacing bulbs in some lamps.

Thank you you. I will try that also. It is most useful to have a sort of checklist of things to try

 

[mikebentleyturbo2]

Very often the fuse for the interior lights is removed to avoid a flat battery when the doors are left open.

 

[Shay Whelan]

Ah, interesting

 

[mikebentleyturbo2]

I sure you wil find the instruments only illuminate when lights and ignition are on.

 

[Shay Whelan]

Hi, yes, have checked that, and made sure the dimmer was not at its lowest setting. Thanks, Shay

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[Shay Whelan]

Thank you all for your suggestions. They are both working now. The interior lights (what a stunningly beautiful interior it is with them on) however do not go off after the doors are closed. Should they? perhaps this is why a previous owner may have disconnected them.

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[mikebentleyturbo2]

Should go off after a few minuites , are they switched off at the light switch?(pushed in) , could be door lock swich, faulty timer or short somewhere.
Mike

 

[Wraithman]

All RR/B have a timer module to turn off interior lamps when the doors are shut. Yours has a malfunction, leading the previous owner to mod the system to keep them off. Replace the module.
]https://rrtechnical.info/sz/sz87/tsd4701/28a.pdf[/URL]
The delay module may look like this: COURTESY LIGHT DELAY (UD26559U)

Go to the Bentley Heritage site and plug in your VIN for the exact parts for your car.

 

[Shay Whelan]

Thanks again. I will try the suggestions about the delay module. These type of forums are so helpful.

 

[mikebentleyturbo2]

Have you bought it yet 🙂?

 

[Shay Whelan]

The ride is very bouncy in the rear so I am going to replace the 2 Gas Springs. I should have the new Spheres tomorrow and I have the replacement LHM+ fluid. Hopefully 2 litres is enough. If that resolves the issue, I may go ahead (there is also some surface rust that would need to be done) . If it doesn't fix the issue, I'll bring it back to the seller. I do not have access to mechanics familiar with these cars locally.

 

[mikebentleyturbo2]

You know those spheres can be very tight, I had a burly friend use filter grips to unscrew mine, but some people use a hammer and chisel!!

 

[AlanD]

Here is a repeat of a warning I have posted several times on RR/B and Citroen websites.

Spheres need to be tightened ONLY BY HAND. If they are "spun down" with a clonk the impact caused by the inertia will tighten them so much they will need a special clamp-spanner to loosen them, or a hammer and chisel. The operating pressure locks the threads so tight that they never move in action.

Alan D.

 

[Shay Whelan]

Thank you. I very much appreciate your advice.

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