Hi all,
2021 Sprinter 3500XD 4x4 170" wheel base with MBUX package. Rear of the van is an empty metal box without anything in it. We're turning it into a film truck.
I'm new to sprinters so I wanted to check if this is normal. We're still gathering data on the issue, but so far, here's what we've done and what we are seeing:
But I thought I'd start a thread and find out whether others have seen this when installing a second alternator? Or if this is perhaps an unrelated issue?
Is there any known recalibration of the ECM or another component to let the van know it needs to make more power sooner at idle?
The vehicle is brand new and we only received it a few days ago, so I'm sure we'll have much more data as the week progresses.
Thanks,
Mark Maunder.
2021 Sprinter 3500XD 4x4 170" wheel base with MBUX package. Rear of the van is an empty metal box without anything in it. We're turning it into a film truck.
I'm new to sprinters so I wanted to check if this is normal. We're still gathering data on the issue, but so far, here's what we've done and what we are seeing:
- We installed a 10Kw power system that is 24 volt DC in the van.
- Part of the install was a 24 volt auxiliary alternator that provides over 3KW of charging to the house batteries. The alternator is a Nations 24 Volt 150 amp alternator. (AD-24V-150-ERL)
- With no charging: When pulling away from a standing start, the sprinter pulls away slowly, then without moving the throttle position it hits a power band and really takes off.
- When charging house batteries and the alternator is producing 70 to 130 amps, there is less power.
- When the back wheels are in a bit of a ditch, I actually can't pull away. I put the throttle all the way to the floor and the Sprinter doesn't move. Had to engage low range to get her moving today. Have not tried the same ditch without charging.
But I thought I'd start a thread and find out whether others have seen this when installing a second alternator? Or if this is perhaps an unrelated issue?
Is there any known recalibration of the ECM or another component to let the van know it needs to make more power sooner at idle?
The vehicle is brand new and we only received it a few days ago, so I'm sure we'll have much more data as the week progresses.
Thanks,
Mark Maunder.