Flickering xenon lights, battery convince, various issues…

[Georgebarrett]

Hi all,
I have a w211 2003 e320 cdi, here are my issues:

First one, battery drain overnight

If I have ignition on, one light automatically comes on no matter what position the light switch is, if I then put the light switch on auto or on, my drivers side stays on but every single light flickers, interior dome lights footwell lights even the lights on my steering wheel controls, very annoying.

I keep getting battery convenience functions disabled and then it changes to enabled again constantly on and off

Blower comes on then off then on then off matching the battery conveinience warning on and off

Parking sensors don’t work

Rear wiper doesn’t work

If I press the button to open where the cd changer is it doesn’t open, I don’t think I have a cd changer but the door still doesn’t open.

My radio didn’t work until I did fibre optic bypass on the module in the boot, now works fine.

No red battery light or any warnings! The red battery light came on once when I had heater full, wipers on radio on and lights on.

New main battery with charging at 13.8/14volts when running.

Any ideas please? Thankyou

 

[whitenemesis]

Water ingress in the front SAM?

 

[AMGeed]

Have you checked the voltage of the Auxiliary battery under the pollen filter?
If it's not been changed in the last 5 years or so its probably dying.

 

[John N]

Hi all,
I have a w211 2003 e320 cdi, here are my issues:

First one, battery drain overnight

If I have ignition on, one light automatically comes on no matter what position the light switch is, if I then put the light switch on auto or on, my drivers side stays on but every single light flickers, interior dome lights footwell lights even the lights on my steering wheel controls, very annoying.

I keep getting battery convenience functions disabled and then it changes to enabled again constantly on and off

Blower comes on then off then on then off matching the battery conveinience warning on and off

Parking sensors don’t work

Rear wiper doesn’t work

If I press the button to open where the cd changer is it doesn’t open, I don’t think I have a cd changer but the door still doesn’t open.

My radio didn’t work until I did fibre optic bypass on the module in the boot, now works fine.

No red battery light or any warnings! The red battery light came on once when I had heater full, wipers on radio on and lights on.

New main battery with charging at 13.8/14volts when running.

Any ideas please? Thankyou

You appear to be as good with "Wiggly Amp Things" as I am, have you seen any of this?: