While spending several hours troubleshooting a problem with dead batteries in a Sprinter Van, Larry Hagemeister found a problem with an “nearly” non serviceable blown 300A alternator fuse. When Larry comes across tough issues such as this, he likes to share them with other professionals in the Auto Electrical Industry.

Meet a colleague of Larry’s, Dan Marinucci. He is an Automotive Technical Training Specialist and has been writing and sharing information in MOTOR Magazine’s monthly import repair column “Foreign Service” since 1989.

Dan Marinucci - Automotive Technical Training Specialist
Click here to read Dan Marinucci’s article from Motor Magazine about how Larry fixed this Blown Alternator Fuse on this Sprinter Van.
From the article:

“Larry Hagemeister, an experienced autoelectric specialist, said he encountered this fuse while troubleshooting dead batteries on a 2007 Freightliner van equipped with a 3.0L V6 Mercedes diesel. He owns Hagemeister Enterprises, an electrical rebuilding company with locations in Lebanon and Redmond, OR. Besides rebuilding a wide variety of electrical components, his crew often performs on-car diagnoses.

According to Hagemeister, this particular vehicle suffered from multiple problems and had an uncertain maintenance/repair history. However, the blown alternator fuse was the job’s biggest surprise.”

…more:
“Technicians may assume that all Sprinters are diesel-powered. But a diesel engine was optional on only some vans. And among common, service-age Sprinters, you’ll find a dualbattery electrical system fed by a 180A Valeo alternator. Auto-electric specialists have told me that this Valeo is relatively robust and durable; for example, the drive pulley clutch on a high-mileage Valeo alternator may wear out long before its electrical parts fail. Of course, a slipping clutch pulley causes a no-charge condition, so don’t overlook that possibility during your diagnosis.”

Read the full article here (PDF)
Or read the article on Motor Magazine’s website here

For any questions regarding your equipment needs, please call Larry at the shop.
HEI Phone number is 1-800-944-0494, ask for Larry.
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