What is the normal circuit (battery) drain when locked?

[Helmsman]

Originally Posted by Assimilator1

Que?
In the key lock?
Sorry can you reword that?

I guess I could've brushed the body, would that have been enough?

Sorry for me Swenglish mate, the key holder/hole in the car. I always put it there (but disengaged) when cleaning etc.
Not sure about other parts of the body, think only where the touch sensors are.

[Assimilator1]

Lol, no probs , my French relatives sometimes struggle with my Franglais

Ah the keyhole in the door, got ya. Disengaged?
Btw, interesting that water spray can provide enough conductivity!

[Helmsman]

Originally Posted by Assimilator1

Lol, no probs , my French relatives sometimes struggle with my Franglais

Ah the keyhole in the door, got ya. Disengaged?
Btw, interesting that water spray can provide enough conductivity!

Lol, no the key/ignition hole by the steering wheel mate..., seems our languages will never quite align!

Yes, wash the car with the key in your pocket, and it will keep lock/unlock like a maniac.

[Assimilator1]

Oh you meant the ignition hole/slot, well we got there in the end! lol

I tried my keyless access earlier, I touched the ribbed part of the door handle, with key in pocket, aanndd nothing! Doesn't seem to work , hmm...

[Helmsman]

Originally Posted by Assimilator1

Oh you meant the ignition hole/slot, well we got there in the end! lol

I tried my keyless access earlier, I touched the ribbed part of the door handle, with key in pocket, aanndd nothing! Doesn't seem to work , hmm...

Guess your doesn't work but heres a finel input just to be on the safe side mate: The grooved bit on the upper side is for your thumb to LOCK the car. To unlock you simply grab the hande, guess theres a sensor on the inside as well.

[Assimilator1]

Ah ok, didn't know that, I did it wrong then, maybe it does work, I'll find out tomorrow

[Assimilator1]

Well, I thought I was done and dusted with the battery drain issue.
But today I went to drive it after 3 weeks garaged (been too busy to drive it ), and the battery was absolutely dead flat! I had charged it 3 weeks prior too, so not only have I still got a problem, but that drain is far worse than it ever has been, previously it'd been very low after 4 weeks on the new battery (and cold weather), but never totally dead ffs!
I hope their are some codes stored, because if not I've no idea how to trace an intermittent drain.....

Oh btw, touching the door handle doesn't unlock my car.

[Assimilator1]

Had the DMM on it today measuring the drain, and by blind luck the fault occurred!
Drain didn't drop below 0.15A, and about every 10s their was a buzz of a relay (1st time I've heard that happen!) which gave a drain spike of over 2A. The buzzing relay comes from a module right next to the battery, behind the sound insulation (is the module to do with the central locking?).

When this happens the car doesn't respond to the keyfob, I have to unlock it with the key, then it responds to the keyfob, also the buzzing every 10s stops.
I had noticed that occasionally the keyfob seemed to stop working before, I thought it was maybe the keyfob battery going low (so I put it in the slot more), but clearly it's not that.
I did a code scan, and obviously got a ton related to the battery going dead flat, but I also got 3 relating to the drivers door handle, I think I got at least one of those codes before (thought I recorded them too, I hadn't it seems).
Also a little latter (after driving it), it refused to lock on the 1st 3 or so attempts, so I guess the drivers handle's buggered!?
Could it be anything else?
Presumably a faulty handle is what's causing the module to sometimes buzz every 10s?

[Helmsman]

Originally Posted by Assimilator1

Had the DMM on it today measuring the drain, and by blind luck the fault occurred!
Drain didn't drop below 0.15A, and about every 10s their was a buzz of a relay (1st time I've heard that happen!) which gave a drain spike of over 2A. The buzzing relay comes from a module right next to the battery, behind the sound insulation (is the module to do with the central locking?).

When this happens the car doesn't respond to the keyfob, I have to unlock it with the key, then it responds to the keyfob, also the buzzing every 10s stops.
I had noticed that occasionally the keyfob seemed to stop working before, I thought it was maybe the keyfob battery going low (so I put it in the slot more), but clearly it's not that.
I did a code scan, and obviously got a ton related to the battery going dead flat, but I also got 3 relating to the drivers door handle, I think I got at least one of those codes before (thought I recorded them too, I hadn't it seems).
Also a little latter (after driving it), it refused to lock on the 1st 3 or so attempts, so I guess the drivers handle's buggered!?
Could it be anything else?
Presumably a faulty handle is what's causing the module to sometimes buzz every 10s?

Bta, battery is not charged in the fob on cars with CA mate, you need to replace it.

[Assimilator1]

Ah, good to know! (I was beginning to wonder that after reading about CAS problems for the 5 series), so non CAS cars have a fixed rechargeable battery?

[Helmsman]

Originally Posted by Assimilator1

Ah, good to know! (I was beginning to wonder that after reading about CAS problems for the 5 series), so non CAS cars have a fixed rechargeable battery?

....btw my driver side CA door stopped working, after all these years of perfection.... No codes but assume there is a sensor in there. To be sorted later...

[Assimilator1]

Well, if that's the only thing that's gone wrong that's not bad!

Guess we'll both be Googling it to see if we can repair it, or whether it needs a new part.

This site seems like a good start...

[Helmsman]

Originally Posted by Assimilator1

Well, if that's the only thing that's gone wrong that's not bad!

Guess we'll both be Googling it to see if we can repair it, or whether it needs a new part.

This site seems like a good start...

As mine is working perfect on the passanger side one would think its a door handle sensor, which if so should be possible to generate a code, but nothing. Will digg into this soon as the boat is in the water....

[nurburgracer]

Originally Posted by Assimilator1

Drain didn't drop below 0.15A, and about every 10s their was a buzz of a relay (1st time I've heard that happen!) which gave a drain spike of over 2A. The buzzing relay comes from a module right next to the battery, behind the sound insulation (is the module to do with the central locking?).

The comfort access module is next to the battery, so with active all the time would probably explain the battery drain.

Did you get this fixed in the end?

[Assimilator1]

I haven't replaced the handle yet, but I've unplugged it, and since doing that I haven't seen any signs of an excessive drain. And the central locking hasn't played up either .

And thanks for answering my question, good to know that's the CAS module (which makes sense).

[nurburgracer]

Originally Posted by Assimilator1

I haven't replaced the handle yet, but I've unplugged it, and since doing that I haven't seen any signs of an excessive drain. And the central locking hasn't played up either .

And thanks for answering my question, good to know that's the CAS module (which makes sense).

Great news