J
jetjockey
Guest
Hi
Just had a friend to check out my 2004 / 2005 W211 (266) E320 CDI again with his Launch unit.
We have a current and stored fault (9470 R22/3) Heater Booster.
Further digging about within the system using the Launch is showing:-
1) Cutoff because under volts Term 30 = Yes
2) PTC Heater Booster Faulty
3) Actual current 255 Amp
Anyone any ideas on this please?
Having never had a Merc before I don't even know if it really is working or not.
I have read that Supply fuses for the Heater Booster burn out but don't know where the Fuse is.
The Fault refused to clear. At the time the battery was down to about 12volt after prolonged testing of the car systems. Could this be the reason?
The BCM was showing no faults and the backup battery was showing 12.6volts. The main Battery was renewed last week and uprated to a Bosch Silver 019 (100Ah and 830 CCA). Way above Merc spec for this car.
I'm scratching my head at the moment? It's a mystery.
Gerald.
P.S. Have not had any "Consumer Services Disabled" warnings since changing the battery last week.
Just had a friend to check out my 2004 / 2005 W211 (266) E320 CDI again with his Launch unit.
We have a current and stored fault (9470 R22/3) Heater Booster.
Further digging about within the system using the Launch is showing:-
1) Cutoff because under volts Term 30 = Yes
2) PTC Heater Booster Faulty
3) Actual current 255 Amp
Anyone any ideas on this please?
Having never had a Merc before I don't even know if it really is working or not.
I have read that Supply fuses for the Heater Booster burn out but don't know where the Fuse is.
The Fault refused to clear. At the time the battery was down to about 12volt after prolonged testing of the car systems. Could this be the reason?
The BCM was showing no faults and the backup battery was showing 12.6volts. The main Battery was renewed last week and uprated to a Bosch Silver 019 (100Ah and 830 CCA). Way above Merc spec for this car.
I'm scratching my head at the moment? It's a mystery.
Gerald.
P.S. Have not had any "Consumer Services Disabled" warnings since changing the battery last week.
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