View Single Post
Old 15th March 2021, 09:52   #10
Muttley
Regular poster
 
MG ZT 190+

Join Date: Jan 2017
Location: DERBY
Posts: 95
Thanks: 56
Thanked 19 Times in 14 Posts
Default Parasitic Battery Drain

Quote:
Originally Posted by Muttley View Post
I have a similar problem, without using the car daily it only takes about 4-5 days before the car is a non-starter and she requires charging or a jump start.

I had the RAC sell me a "High Quality, High Amperage" battery, for which read " High Cost!" whilst stuck in the middle of Dartmoor on holiday last year.

I pointed out to the RAC tech that the car has a problem in that the drivers info panel LED's remain lit when the ignition is turned off (that's the outside temp/trip mileage and odometer bit). He measured the battery drain and declared that at .5amps it would be no problem and the battery was guaranteed to start the car for at least five years, yeah right!!

Does anybody have any suggestions as to how to test this, how to rectify this or should I just start practising for when I have to go all electric and just plug the car in every night?
Further to the above I have checked all of the instrument/dashboard fuses, all are okay.
Took it to local Auto Diagnostics fellow today, he plugged it into his computermajig and after clearing a load of old fault codes and checking her over he believes the fault lies within the instrument cluster unit and recommends trying a replacement (either new ££££££, or second hand £) to see if this closes the problem out. However having read the above reference the BCU etc should I be looking at that?

Does the instrument cluster get its info from the BCU so that if I do change the cluster will it still show correct mileage or is that stored in the cluster and will show whatever the donor vehicle/new cluster has recorded?
Hmmm
Muttley is offline   Reply With Quote