Stephen Rigby
Senior Member
- Joined
- Mar 20, 2020
- Messages
- 71
- Reaction score
- 16
- Your Mercedes
- E class 270d.
Good evening.
I have a 53plate e class 270d saloon.
The electric windows stop half way down while driving and sometimes the radio goes of briefly?
I've checked all the conections and cleaned and checked the fuses. In 3 fuse boxes.
Both the batterys are new.
If the engine is not running all works ok.
When I started it the fault appeared.
So I checked the charger alternator supply and it's to high at 16v. At the boot battery but 13v at the small under bonnet battery?
Before I buy a new alternator is there a external voltage regulator other than the one incorporated in the charge alternator.
I know the box in the boot is doing it job and protecting the system .
Just wonder if any one else as had a the same fault.
Thanks Steve
I have a 53plate e class 270d saloon.
The electric windows stop half way down while driving and sometimes the radio goes of briefly?
I've checked all the conections and cleaned and checked the fuses. In 3 fuse boxes.
Both the batterys are new.
If the engine is not running all works ok.
When I started it the fault appeared.
So I checked the charger alternator supply and it's to high at 16v. At the boot battery but 13v at the small under bonnet battery?
Before I buy a new alternator is there a external voltage regulator other than the one incorporated in the charge alternator.
I know the box in the boot is doing it job and protecting the system .
Just wonder if any one else as had a the same fault.
Thanks Steve
