Looking for a sticking-plaster for the eternal battery drain

[WNJ516]

Just a query, can't the information from the old light module be transfered to the "New" module via T4 or "TOAF" software, did read on the 75 sight of one of the modules in the LSM being changed and it cured the problem, exactly same fault as Oldie's.

[Les4048]

Here's a simple battery isolator from a company I deal with through my work

http://v2.gb.sparex.com/ItemDetails/...ttery+isolator

[oldie]

Here's a simple battery isolator from a company I deal with through my work

http://v2.gb.sparex.com/ItemDetails/...ttery+isolator

That's similar to the type I use on my v6 when not driving for a while. They are very effective. However it is best if there is easy access to the battery. Apropos the light switch and a need for a t4: would using a replacement temporarily, prior to getting t4ed, pose a problem,; e.g. making the car undriveable or damaging other memory components? If I test the battery for current draw using a multimeter what sort of figures should I find?

Incidently, Seasonal Greetings to every body and thank you for the swift, knowledgeable suggestions/solutions/advice etc.

[Nich]

............ If I test the battery for current draw using a multimeter what sort of figures should I find?
...........................

You should get approx 12 volts + with everything off and then starting should not drop below 10 volts and then something in excess of 14 volts with the engine running, i.e. alternator charging the battery.
Nich.

[oldie]

If, for instance, the light switch is the offending article. What figures should I see when the switch is connected/disconnected. Would I be looking at the ammeter reading and where would I place the meters' probes? (Printable answers only please).

[David]

If, for instance, the light switch is the offending article. What figures should I see when the switch is connected/disconnected. Would I be looking at the ammeter reading and where would I place the meters' probes? (Printable answers only please).

Take a look at this thread https://www.two-sixties.co.uk/mgoc26...ighlight=drain
where you should find that info.

David

[SCP440]

Sorry to be negative about our cars but I fear these mysterious electrical problems will become more common as they age. Car electronics are not designed to last for ever and with the inevitable damp these can cause problems.

I know of several modern cars that have been scrapped due to endless electrical problems and the cost of fixing was going to cost more than there worth, one very nice 7 series BMW even failed its MOT because of such problems now engine management lights, ABS and airbag lights are a failure. I am sure the manufacturers build in this need for T4 and the like on purpose, there is no need for a light switch to store the mileage information.


Steve