AVAILABILITY: Currently these are on back order due to extremely high demand. We expect to have these in stock and ready to ship within 2-3 weeks from the time of order placement.
Upgrade Your Sprinter: Meet the Engine Oil Cooler Kit!
Hey, Sprinter owners! Are you tired of pushing your engine to the limit only to worry about overheating? After four years of rigorous testing, Adrenaline has introduced the Engine Oil Cooler Kit, designed specifically for your 3.0 Ltr. engine.
Why oil temps climb on long grades
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Exhaust heat (EGT) moves into the turbo housing and into the engine oil.
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Piston oil squirters add more heat load to the oil film.
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The coolant/oil heat exchanger saturates; when both systems are hot, oil runs hotter than coolant.
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On sustained pulls, oil becomes the thermal sink and creeps past 240–250 °F even if coolant looks normal.
Why add an oil cooler to the OM642 (Sprinter)
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The OM642 uses oil as a primary cooling medium for the turbo and pistons.
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Under continuous load (mountain passes, towing, heavy vans), oil temps exceed the ~220 °F sweet spot and push toward the limits of MB 229.51/229.52 oils.
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The factory coolant/oil exchanger is sized for typical European duty cycles. North American RV/cargo builds + long climbs = more heat than the stock system can shed.
What a dedicated external oil cooler does
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Bypasses the coolant/oil bottleneck and adds direct airflow heat rejection.
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Lowers equilibrium oil temps by ~20–40 °F, keeping temps in a safe continuous range.
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Cooler oil = more stable viscosity, less thermal breakdown, and longer turbo & bearing life.
Plain terms
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On long grades your oil acts as the heat dump for the turbo and pistons. An auxiliary oil cooler gives the oil its own radiator, taking load off the coolant so both systems run cooler—ideal for heavy Sprinters on sustained climbs.