john0183

My w211 battery died I went on a trip for about a month my airmatic suspension was all the way to the floor and so I charged my battery to start the car but the battery charger says its charged fully and also charged the small battery up front and went the Caria driving everything works and then says Malfunction electrical consumers switched off , When that happens the Ac is working but not that strong and the radio cuts off for power what can I do to fix this issue . Anyone help would be great.

Plutoe

Regrettably there is an issue with the battery control module. The only way to resolve the problem is through someone with DAS Xentry diagnostic tool and no substitute offered by spankys I can do that!!!

vettdvr

If the battery dies the suspension should not collaps. The valves should be closed. You have 2 problems.

The first could just be bad battery. Check your aux battery under the hood if equiped. IF the battery dies at night try disconnecting it from the cable and see if it dies. IF it does drop change the battery, If it does not suspect the battery control module in the trunk on the rear of the compartment by the spare tire.

john0183

Ok thanks for the response I keep hearing the battery control module can I replace that part is it expensive and how do I replace it because I don't have much money to go to the dealer ship I think it's the rear battery but the battery control module does anyone know how to replace it thank you.

Plutoe

Do yourself a big favor----reread post 2 about ten times and then think------you need someone with DAS Xentry to help solve the problem, repeat you need someone with DAS Xentry to help solve your problem.

The issue is "we think"-----to change "think" in to "it is"----you test with DAS Xentry to find out what's wrong---it may be that the BCM just does not recognize the new charge. Then you have spent money for nothing!!!!

Remember even if you spend the 80-100 bucks for the module you still need DAS Xentry diagnostic tool to have the car recognize the module------this is not a 1960's car---things have changed and yes it costs money---you drive a benz get use to it

mb techman

.

john0183

Ok thanks I am new at this so I am trying to get used to the system very complicated .

vettdvr

It doesn't take much thinking to run a battery check.

Critter

Just how old are the batteries in the car. Sitting for extended periods greatly reduces the life of a battery. If the battery is older than 5 years, it will probably be good insurance to replace. But also a diagnostic as stated above is money well spent.

john0183

Thanks guy appreciate it .