Mercedes Sprinter Turbocharger Coolant Line – OEM | VS30 2.0L OM654 Diesel | #6542036701 (2023+)

A leaking or damaged turbocharger coolant line on a VS30 Sprinter removes thermal protection from one of the most heat-stressed components on the engine — and the consequences compound quickly, from cooked turbo bearings to full turbo failure. This is the OEM turbocharger coolant line for VS30 Sprinters equipped with the 2.0L OM654 diesel engine, a direct replacement that restores coolant flow through the turbocharger cooling circuit.

What This Part Does

The turbocharger on the OM654 is liquid-cooled as well as oil-lubricated. The coolant line carries engine coolant through the turbo's center housing to absorb heat generated by the turbine side, which operates at exhaust gas temperatures that would otherwise cook the oil film around the bearings and shaft. This cooling becomes even more critical at engine shutdown — when exhaust heat soaks back into the turbo with no airflow to dissipate it and only residual coolant circulation to protect the bearings. A failed, cracked, or pinched coolant line eliminates that protection and creates the conditions for oil coking, shaft seizure, and premature turbo failure.

Common Symptoms of a Failing Turbocharger Coolant Line

• Coolant seeping or dripping in the turbocharger area or on nearby heat shields
• Unexplained coolant loss without a visible external leak elsewhere in the system
• Coolant or steam smell from the engine bay during or after operation
• Turbo noise, reduced boost, or bearing roughness — particularly after high-load runs
• Coolant temperature running higher than normal after extended highway driving

When to Replace

Replace when the line shows any cracking, weeping, swelling, or damage at the connection fittings. Also replace whenever the turbocharger itself is being serviced or replaced — installing a new turbo onto a compromised coolant line is a common cause of repeat turbo failure.

VS30 OM654 Specific — VIN Verification Required

This coolant line is for VS30 Sprinters equipped with the 2.0L OM654 diesel engine. It is not compatible with VS30 models equipped with the 3.0L OM642 or NCV3 Sprinters equipped with the 2.1L OM651. Always verify your engine code and VIN before ordering. Contact us and we'll confirm fitment before you buy.

Fitment

• 2023+ Mercedes-Benz Sprinter 1500 – 2.0L OM654 Diesel (VS30)
• 2023+ Mercedes-Benz Sprinter 2500 – 2.0L OM654 Diesel (VS30)
• 2023+ Mercedes-Benz Sprinter 3500 – 2.0L OM654 Diesel (VS30)
• 2023+ Mercedes-Benz Sprinter 3500XD – 2.0L OM654 Diesel (VS30)

Part Numbers

• Mercedes OEM: 6542036701 / A6542036701 / 654-203-67-01
• Manufacturer: Genuine Mercedes-Benz
• SKU: 6542036701OE