30 amp fuse keeps blowing

[C220coupe420]

Hi wondering if anybody else has had this issue but a 30 amp fuse keeps blowing which means the car wont start until you put another one in I have taken this to a mechanic and they fixed it apparently but it has happend again. Really looking for some help with this as it shouldn’t be happening on a 2017 Mercedes also worried it might go while driving on a motorway and cause an accident.

Thanks

 

[mioba]

What components are on that circuit. Find the faulty component and replace.
Get an auto electrician if you are not sure yourself.

 

[Srdl]

Welcome - or go to a proper Mercedes specialist (Independent) if there is one near you. Where are you based?

 

[ajlsl600]

30amp means something on starter, charging circuit. To me anyway. After check-in all abvious. Put on code reader for more specific information
Wud not reccomended replacing fuse repeatedly. It's there for reason. And 30 a is plenty

 

[mattkh]

Hi wondering if anybody else has had this issue but a 30 amp fuse keeps blowing
Thanks

Does it blow when it is raining heavily...??

 

[C220coupe420]

Does it blow when it is raining heavily...??

It has blown before after having the car washed but then some times won’t blow at all it’s confusing it’s the fuse from the fuse box under the bonnet

 

[mattkh]

It has blown before after having the car washed but then some times won’t blow at all it’s confusing it’s the fuse from the fuse box under the bonnet

Thanks.
Any chance of a photo of that area.