C5 running battery down

[Peter.N.]

Hi Folks

There is a C5 advertised near me very cheap but it apparantly runs the battery flat if its not used for a couple of days, is this a known fault or could it be anything?

It is an LX but is advertised as having cruise control, would that be an option on an LX, not that I particularly want cruise control I would rather have auxilluary heating but I just wondered.

Peter

[Lighty]

Split charge relay is the most common problem I have come across, but obviously if it hasn't got a towbar it cant be that

[Peter.N.]

Thanks for that, yes it does have a towbar, any idea how it runs the battery down?

Peter

[Lighty]

The relay tends to stick on, hence using current constantly. I have had 4 or 5 of these go wrong, as they are usually cheap nasty chinese things.

[myglaren]

Also, LX doesn't come with cruise as standard.

[Peter.N.]

Thanks Lighty and Steve, useful info. I didn't think cruise control was fitted.

Peter

[SaabC5]

Cruise could have been retro fitted though......

[myglaren]

Cruise could have been retro fitted though......

It's available as a dealer option at around £135.
Chris (citroenmad) bought and fitted his own without difficulty.
A Lexia is needed to tell the various ECUs that it is present.

[cachaciero]

Hi Folks

There is a C5 advertised near me very cheap but it apparantly runs the battery flat if its not used for a couple of days, is this a known fault or could it be anything?

It is an LX but is advertised as having cruise control, would that be an option on an LX, not that I particularly want cruise control I would rather have auxilluary heating but I just wondered.

Peter

Maybe it is not switching into eco mode, if this was the case all the CPU's would be permanently up and running plus probably a few other bits and pieces. Now I do not know for sure what the electrical consumption is in "nominal" mode but a figure of 3 or 4 amps wouldn't surprise me in 48 hours that's a flat battery.

cachaciero