Mercedes Sprinter Intercooler – Mahle | NCV3 2.1L OM651 & 3.0L OM642 BlueTec | #9065010201 (2010–2018)

A cracked, leaking, or internally fouled intercooler on a NCV3 Sprinter allows hot, low-density charge air to reach the intake manifold — reducing power output, increasing combustion temperatures, and in cases of an internal oil leak, contaminating the intake system with oil from a damaged boost hose or turbo seal. This is the Mahle intercooler for NCV3 Sprinters equipped with the 2.1L OM651 or 3.0L OM642 BlueTec diesel engine, a direct replacement that restores efficient charge air cooling and full boost performance.

What This Part Does

The intercooler — also called a charge air cooler — is a heat exchanger positioned between the turbocharger outlet and the intake manifold. Compressed air exits the turbocharger at significantly elevated temperature, which increases its volume and reduces its density. The intercooler routes this compressed air through an aluminum core where ambient air flowing through the front of the van absorbs the heat, cooling and contracting the charge before it enters the cylinders. Denser, cooler charge air allows the engine to combust more fuel per cylinder per cycle — producing more power from the same displacement and reducing thermal stress on pistons, valves, and the combustion chamber. When the intercooler develops an internal crack, a failed end-tank seal, or core damage from road debris, boost pressure drops and charge air temperature rises — causing power loss, increased black smoke, and intake temperatures the ECU compensates for by reducing injection quantity.

Common Symptoms of a Failing Intercooler

• Loss of power or sluggish acceleration under load — particularly at highway speeds
• Black smoke under hard acceleration from reduced charge density causing incomplete combustion
• Boost pressure fault codes or under-boost codes from the ECU
• Oil contamination visible in the intake tract or intercooler pipes — sign of internal fouling from a leaking turbo seal
• Visible cracking, oil weeping, or physical damage to the intercooler core or end tanks

When to Replace

Replace when a pressure test confirms boost leakage at the intercooler, when cracking or damage is visible at the core or end tanks, or when oil contamination is found in the charge air circuit. Always inspect and replace the intercooler inlet and outlet hoses and clamps at the same time — a new intercooler on degraded hoses will leak immediately.

NCV3 BlueTec Specific — VIN Verification Required

This intercooler is for NCV3 Sprinters with the 2.1L OM651 and 3.0L OM642 BlueTec diesel engines, 2010 and later. It does not fit earlier NCV3 Sprinters (2007–2009) without the BlueTec system, or VS30 Sprinters (2019+). Always verify by VIN before ordering. Contact us and we'll confirm fitment before you buy.

Fitment

• 2010–2018 Mercedes-Benz Sprinter 2500 – 2.1L OM651 / 3.0L OM642 BlueTec (NCV3/W906)
• 2010–2018 Mercedes-Benz Sprinter 3500 – 2.1L OM651 / 3.0L OM642 BlueTec (NCV3/W906)
• 2010–2018 Freightliner Sprinter 2500 / 3500 – BlueTec models only

✔ BlueTec models only — 2010 and later
✔ Always inspect and replace intercooler hoses when replacing the core

Part Numbers

• Mercedes OEM: 9065010201 / A9065010201 / 906-501-02-01
• Cross-reference: 2E0145804A
• Manufacturer: Mahle — CI 368 000P
• SKU: 9065010201