156 Rear Light

The near-side rear light on my 156 is glowing constantly, even when
the ignition is switched off. With the ignition on, the bulb warning
light on the dash comes on. When the lights are switched on, the
warning light goes out and the bulb operates normally.

I've tried a different bulb, checked fuses but can't figure this out.

I saw a previous post which said the earth connection beneath the rear
light cluster could be loose, but I've checked that and it's tight.

Any ideas gratefully received.

Thanks
Gareth Holt

Alfa Romeo 156 2.5 V6
Ducati 900SS
Kawasaki ZX-6R

In message >, Gareth
> writes
>The near-side rear light on my 156 is glowing constantly, even when
>the ignition is switched off. With the ignition on, the bulb warning
>light on the dash comes on. When the lights are switched on, the
>warning light goes out and the bulb operates normally.
>
>I've tried a different bulb, checked fuses but can't figure this out.
>
>I saw a previous post which said the earth connection beneath the rear
>light cluster could be loose, but I've checked that and it's tight.
>
>Any ideas gratefully received.
>
>Thanks
>Gareth Holt
>
>Alfa Romeo 156 2.5 V6
>Ducati 900SS
>Kawasaki ZX-6R

I had a similar problem myself recently. It's probably the rev counter
which all of the bulb warning electronics in it. Apparently it's a
common fault.
Good news : it's an easy job (it's only held in by 3 screws) so no need
to go to the dealer.
Bad news : a new rev counter is about 130 quid.

--
Don Harding
156 2.0

Thanks for this - your definition of "easy" may not match mine
(mechanically challenged as I am) !
So it may be a trip to the dealer after all - if only to confirm the
fix.

Gareth

gareth wrote:
> Thanks for this - your definition of "easy" may not match mine
> (mechanically challenged as I am) !
> So it may be a trip to the dealer after all - if only to confirm the
> fix.
>
> Gareth

Hi Gareth,
Before you go to a dealer, I would try and earth the rear light first.
I had trouble for months with warning, rear fog light off, when it was
working, all it was ,was a slack connection between the bulb and the
bulb holder, once tightened up no more faults.
If odd lights are dim or switching on when they shoudn't it sometimes
means an earth fault. Get some wire and fix it to a good earth, then
touch the side of the bulb. It may help to have someone to work the
lights switch for you. Hope this is of some help to you ,Good luck.
John, UK.

John
I will try that - thanks.
Gareth