Mercedes Sprinter DEF Pump – Bosch | NCV3 3.0L OM642 BlueTec | #0024706894 (2010–2018)

A failed DEF pump on a NCV3 Sprinter stops AdBlue delivery to the SCR catalyst — triggering fault codes, disabling the emissions reduction system, and eventually putting the van into a power-restricted limp mode that won't clear until the pump is replaced and the system recalibrated. This is the Bosch OE DEF pump for NCV3 Sprinters equipped with the 3.0L OM642 BlueTec diesel engine, a direct replacement that restores precise AdBlue metering and full SCR system operation.

What This Part Does

The DEF pump draws diesel exhaust fluid from the AdBlue reservoir and delivers it at precisely metered quantities to the AdBlue injector upstream of the SCR catalyst. The ECU calculates the required dosing rate based on engine load, exhaust temperature, and NOx sensor feedback, then commands the pump to deliver that exact volume. AdBlue sprays into the hot exhaust stream where it converts to ammonia, which reacts with nitrogen oxides in the SCR catalyst to reduce them to harmless nitrogen and water. The pump also includes a reverse-flow purge function that draws residual AdBlue back from the lines after engine shutdown, preventing crystallization in the injector and supply lines — critical in cold climates where AdBlue freezes below 12°F (-11°C). When the pump fails mechanically or electrically, dosing stops, NOx emissions rise, and the system enters fault mode.

Common Symptoms of a Failing DEF Pump

• AdBlue warning light or DEF system fault message in the instrument cluster
• Check engine light with fault codes related to SCR dosing, AdBlue pump circuit, or DEF pressure
• Engine entering limp mode or power restriction after extended DEF system faults
• AdBlue consumption that drops to zero with a full tank — a sign the pump has stopped drawing fluid
• SCR efficiency fault codes persisting after refilling the DEF tank and clearing codes

When to Replace

Replace when the pump is confirmed faulty by XENTRY or a compatible scan tool with active DEF pump or dosing circuit fault codes, and the AdBlue tank level, injector, and wiring have been ruled out as the source. After replacement, the SCR system must be recalibrated and the fault memory cleared with XENTRY to restore normal operation.

NCV3 OM642 BlueTec Specific — VIN Verification Required

This DEF pump is for NCV3 Sprinters equipped with the 3.0L OM642 BlueTec diesel engine. It is not compatible with VS30 Sprinters (2019+) or NCV3 Sprinters without the AdBlue/BlueTec emissions system. Always verify by VIN before ordering. Contact us and we'll confirm fitment before you buy.

Fitment

• 2010–2018 Mercedes-Benz Sprinter 2500 – 3.0L OM642 BlueTec (NCV3/W906)
• 2010–2018 Mercedes-Benz Sprinter 3500 – 3.0L OM642 BlueTec (NCV3/W906)
• 2010–2018 Freightliner Sprinter 2500 / 3500 – 3.0L OM642 BlueTec (NCV3)

✔ BlueTec/AdBlue-equipped models only
✔ SCR system recalibration required after replacement

Part Numbers

• Mercedes OEM: 0024706894 / A0024706894 / 002-470-68-94
• Cross-reference: F01C600194
• Manufacturer: Bosch
• SKU: 0024706894