Battery drain issue - Cause by transmission ?

jmc said:

wait
the dmm is on the 2000mv scale
and you are seeing 2mv
across a fuse?
you might be in the noise of the transfer function at that range
remove the fuse set to the 10A range and then check for current flow
if tiny reading then try the 200ma range

be careful though

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David170 said:

I done some testing tonight.
We found 3 fuses that draw power with the car off.
By removing some 1 or 2 or 3 of those fuses, the sound/clicking sound change what ever we remove of put back the fuses.

Also, those fuse draw some amp :
214 : 0.3A
217 : Between 0A to 1.5A
220 : 0.3A

If someone can do the same test and test those 3 fuses with a multimeter to check the amp draw with the car off, it will help me.

I have a appointment in coupe weeks only at a local garage..

214	Valid for engine 133, 270, 651: Connector sleeve, circuit 87 M4e

217	Valid with transmission 724: Dual clutch transmission fully integrated transmission control unit

220	Transmission cooling coolant circulation pump

We can ear one of those Relay clicking too;

M	Starter circuit 50 relay
N	Circuit relay87M
O	ECO start/stop: Transmission cooling coolant circulation pump relay

View attachment 69439

I will check Friday and let u know. If someone don't beat me to it.🙂

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David170 said:

Also, i left the battery disconnected all night, and the voltage was pretty much the same as last night... So yes something is draining my battery 🥺

I just hope that i will not have to go to the dealer for that.. 💶💶

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mav238 said:

What is the battery voltage when left disconnected ?

is this a fairly new battery ?

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