Sprinter and EcoDiesel: the PCM failure nobody diagnoses in time

Sprinter vans and EcoDiesel-powered trucks share a module family (Bosch) and share a common enemy in Miami too: constant heat and humidity, which accelerate corrosion and solder wear — especially on vehicles in heavy use, like delivery fleets.

Early warning signs, before the full shutdown

• PCM that starts taking longer to communicate with the scanner
• Check engine + emissions codes that come and go
• Intermittent starting issues with no clear fault code
• Small power losses you only feel on long routes

Why it fails more in delivery fleets

Vans running routes all day, with a hot engine and constant on/off cycles, put the PCM through more thermal stress cycles than private use does. Add Miami's humidity and you get exactly the combination that speeds this failure up.

Component-level repair, to minimize route downtime

We prioritize component-level repair of the PCM over a full replacement — for a fleet, the priority is getting back on the route. We cover the Mercedes Sprinter 3.0L V6 (2010-2023) and the RAM 1500/Jeep EcoDiesel 3.0L (2014-2023), which share the same Bosch module.