Happyman
New Member
Hi all,
1999 C250TD estate. Battery slowly loses charge.
As the cold weather started I assumed the battery was at fault and replaced it. The problem continues.
A multimeter shows a 0.4amp current via fuse #30 with everything switched off.
According to the list in the fusebox cover fuse#30 controls circuits for,
Automatic Heater Control,
Air Conditioner,
Engine Residual Heat System and
Instrument Cluster.
When I remove the fuse the Instrument cluster is indeed almost totally dead and so I assume the others are correct.
The AirCon has not worked consistently since I bought the car 3 years ago (regassed last year - no change). Sometimes the air would be cool but never cold (outside temp?).
Having looked at the list re' fuses I see that the first 3 items also use fuse #20 and the Instrument Cluster also uses fuse #41.
I am a newbie with electronics but very willing to learn - can you enlighten me as to how / why more than one fuse relates to the same circuit.
Regards, Happyman (but could be happier)
1999 C250TD estate. Battery slowly loses charge.
As the cold weather started I assumed the battery was at fault and replaced it. The problem continues.
A multimeter shows a 0.4amp current via fuse #30 with everything switched off.
According to the list in the fusebox cover fuse#30 controls circuits for,
Automatic Heater Control,
Air Conditioner,
Engine Residual Heat System and
Instrument Cluster.
When I remove the fuse the Instrument cluster is indeed almost totally dead and so I assume the others are correct.
The AirCon has not worked consistently since I bought the car 3 years ago (regassed last year - no change). Sometimes the air would be cool but never cold (outside temp?).
Having looked at the list re' fuses I see that the first 3 items also use fuse #20 and the Instrument Cluster also uses fuse #41.
I am a newbie with electronics but very willing to learn - can you enlighten me as to how / why more than one fuse relates to the same circuit.
Regards, Happyman (but could be happier)
