Smart roadster - dash back light dims when break is pushed

[Bechilled]

I’m having some issues with my roadster.

The back light on my dash dims when ever I push my break peddle, also when I was driving home the other evening the abs warning light came on when I switched on my headlights.

The problem started last month when I stopped at a services for about half an hour but when I started it up the abs and main warning light came on and the abs was engaged, after turning it off and waiting 15 minutes before turning it on again and it was fine.

Has anyone had an experience with this type of fault before? Or have any advice?

[InitialDave]

Sounds like a poor earth to me.

Can be frustrating to hunt down when tucked away behind a dash though.

[kuro]

I would suggest joining the roadster owners Facebook page or the roadster.net. There's some quite knowledgeable people on there.

[kuro]

InitialDave said:

Sounds like a poor earth to me.

Can be frustrating to hunt down when tucked away behind a dash though.

Would be a good start, the earth straps can be the cause of many issues on these cars.

[bristolracer]

kuro said:

Would be a good start, the earth straps can be the cause of many issues on these cars.

On any car for that matter

My 1275 gt mini had a habit of earthing the starter motor through the oil pressure gauge,took me a while to work out why there was a flash and a puff of smoke every time i started it

[Bechilled]

Great i’ll Have a look at that now, I have all so been told to check the break light switch but tbh I doubt that that is the issue.

[Deerfoot]

This is also a great Smart site..

https://www.evilution.co.uk/

[kuro]

Bechilled said:

Great i’ll Have a look at that now, I have all so been told to check the break light switch but tbh I doubt that that is the issue.

There are two, one on the battery and one in the engine bay. The one in the engine bay suffers the most as it's an exposed braided cable. Upgraded ones are sheathed in plastic.

[Bechilled]

I have checked both sets and it looks like they both have decent connections and no major wear.

[Cupramax]

Bechilled said:

break peddle, Or have any advice?

BRAKE PEDAL, you 'tard , and yes as above sounds like an earthing issue.

[Bechilled]

Cupramax said:

BRAKE PEDAL, you 'tard , and yes as above sounds like an earthing issue.

Lol my bad.

[Bechilled]

Found the problem, the back passenger side break bulb had broken and there was some corrosion around the base.

Thanks for all the advice.

[eybic]

BRAKE

[Bechilled]

Brake

[eybic]

Bechilled said:

Brake

[Olivergt]

Time for a break after reading that.