Speedo light workaround for mot?

**Perfect65** · 13-03-2019 09:08

My sons Seat whatsitsname has a failed speedo illumination. Dealers reckon its £600 to change the offending part, about an hours work involved. They reckon it wont pass the mot test until its fixed. I wondered if an external stuck-on lamp plugged in the cigar lighter plug coukd be a workaround. Would this fault just be an advisory anyway? Any thoughts?

**drseg** · 13-03-2019 12:56

12v led stuck on with blue tac would light It up from front and block direct light in eyes

**blackpopracing** · 13-03-2019 14:17

Never heard of speedo lamps failing an mot? unless its a digital one and not visible without the lamp?

**timbo56** · 13-03-2019 16:49

Originally Posted by blackpopracing

Never heard of speedo lamps failing an mot? unless its a digital one and not visible without the lamp?

It came in last year

**mattblack** · 13-03-2019 18:53

Can't he just stop under a streetlight when he wants to see how fast he's going?

I'll get me coat...

**RockabillyBilly** · 13-03-2019 19:56

Originally Posted by mattblack

Can't he just stop under a streetlight when he wants to see how fast he's going?

I'll get me coat...

Yes but, what if it's in the daytime? The streetlight will be off then won't it. Get my coat while your at it please....

**Perfect65** · 14-03-2019 20:35

Originally Posted by drseg

12v led stuck on with blue tac would light It up from front and block direct light in eyes

Possibilities there. Perhaps a link wire to the light switch circuit. Thinking how modern cars are wired I dont think so. I assume there must be a way the light is controlled automatically. A photocell to control the led? It would need to be powered by the car electrics and not an independent source. Think on.

**timbo56** · 14-03-2019 20:38

Originally Posted by Perfect65

My sons Seat whatsitsname has a failed speedo illumination. Dealers reckon its £600 to change the offending part, about an hours work involved. They reckon it wont pass the mot test until its fixed. I wondered if an external stuck-on lamp plugged in the cigar lighter plug coukd be a workaround. Would this fault just be an advisory anyway? Any thoughts?

You could try and get it MOTd as it is and see what happens, chances are it'll be missed.

**Perfect65** · 14-03-2019 20:39

Originally Posted by RockabillyBilly

Yes but, what if it's in the daytime? The streetlight will be off then won't it. Get my coat while your at it please....

Thinks .......... do modern cars haveva dimming system forbthe instrument lights? My old 1998 Jeeo has a slider switch but by now maybe its automatic. Perhaos its dimmed itself and a reset might do something? Perhaps disconnect battery for a few minutes?