hi guys i'm paul holtom a new member i have a S class 320 Cdi on a 2005 plate.

[Paul holtom]

i have a battery drainage issue as in a 2 amp according to the RAC man has anyone had this on this model and is it common fault
moreover is it difficult to find ?

 

[John Laidlaw]

Welcome, not sure on this specific model but it's not uncommon across the range. Usually it's the Comand system still running when the car is parked up and turned off....

 

[Paul holtom]

comand system? you mean the ecu ?

 

[Blobcat]

Hello and welcome,

The "Comand" system is the satnav/radio big screen thing. They have a tendency to wake up and cause a battery drain.
You might have water issues in the boot which depending upon what devices are installed there can cause battery drain issues

 

[John Laidlaw]

Nope..
Cockpit Management and Data system - COMAND for short - acts as a combined command and control centre for all audio, telematics and telecommunications functions on Mercedes-Benz vehicles and includes a dedicated flat display screen. In addition to the GPS navigation system and general processing and control logic, COMAND includes components such as an address book, telephone, radio and in many cases a CD/DVD drive. It is connected to other (often separate) devices such as CD/DVD changers, sound system and surround sound amplifier, TV receiver and the optional Linguatronic voice control system via an optical fibre network. The first generations of COMAND used the D2B optical network standard whereas later models are based on MOST.

 

[A.J.]

Hi Paul and welcome to the forum from a non Techie.

 

[00slk]

Nope..
Cockpit Management and Data system - COMAND for short - acts as a combined command and control centre for all audio, telematics and telecommunications functions on Mercedes-Benz vehicles and includes a dedicated flat display screen. In addition to the GPS navigation system and general processing and control logic, COMAND includes components such as an address book, telephone, radio and in many cases a CD/DVD drive. It is connected to other (often separate) devices such as CD/DVD changers, sound system and surround sound amplifier, TV receiver and the optional Linguatronic voice control system via an optical fibre network. The first generations of COMAND used the D2B optical network standard whereas later models are based on MOST.

 

[Tony Dyson]

i have a battery drainage issue as in a 2 amp according to the RAC man has anyone had this on this model and is it common fault
moreover is it difficult to find ?

I think the first thing you need to do is confirm the RAC tech has provided you with a sound diagnosis as some models can take up to 10-12 mins to completely shut down, he may have been reading some consumers before the car had shut down completely. you could start off with a complete synopsis of the full details of your problem, I'm sure with a fuller picture members will be able to advise better.

 

[Paul holtom]

Hello and welcome,

The "Comand" system is the satnav/radio big screen thing. They have a tendency to wake up and cause a battery drain.
You might have water issues in the boot which depending upon what devices are installed there can cause battery drain issues

hi blobcat no water issues, now you saying the radio the day before i did have a problem with trying to switch it off must have took 5 or 6 times?