Vehicle & Technical > Discovery

battery keeps flattening

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lurch_917:
on my disc 300tdi my battery keeps going flat when you park the thing up for more than a day and a half altenator still giving 100 amps is there any common dead shorts i should look for ?? mind you batt might be suspect as is second hand but showed good on draw test so help me

TDi90:
new batery mate.

hobbit:
My 200 did this, turned out to be a fault on the alarm immobiliser, I disconnected this one night and no discharge

Reckon the solenoid in the door seized and shorted something on the circuit board

But specific I know, but first of all have you had the battery tested?

You may have a cell down on it, if so no matter how much charge you give it, it wont last

Ralph:
try unplugging the glow plug relay. I get this problem now and again but since unplugging the relay its been fine.
Mine has a new batt and alternator fitted,
its worth a try and dont cost owt! it starts perfect without glow plugs anyway so i'll leave it as is

jsstevo:
Where's the glow plug relay on a 300TDI Disco?

Cheers!

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