Question 1

What are the symptoms of a failing Cooling System on a NCV3 Sprinter?

Accepted Answer

Hard starting, long crank, or a stall shortly after starting Rough idle, uneven power delivery, or a knock that changes with load Loss of power under load with no boost fault present Diesel smell at the engine bay or a wet seep around the injector well

Question 2

Which fault codes point to this NCV3 Sprinter repair?

Accepted Answer

P0087 / P0088: Fuel rail pressure too low or too high. P0201–P0205: Injector circuit fault, cylinders 1 through 5. P0263 / P0266 / P0269: Cylinder contribution or balance fault. P0093: Fuel system large leak detected. Confirm with a scan tool before ordering — codes narrow the system, not the exact part.

Question 3

Does Mercedes Sprinter Auxiliary Electric Water Pump – Bosch | #0392020026 / 0018351364 fit my Sprinter?

Accepted Answer

Listed for NCV3 Sprinter, 2007–2018. Cross-reference 0392020026 against the number on the component you are replacing. Listed for the NCV3 generation (2007–2018). Part numbers can differ within a generation by year and engine code — send the VIN and we'll confirm the exact number.

Mercedes Sprinter Auxiliary Electric Water Pump – Bosch | #0392020026 / 0018351364

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