Available for 5cyl Sprinter Vans 2002-2006 and 6cyl Sprinter Vans 2007-2018 (contact us for 2019 model Sprinter Vans)
Auxiliary Transmission Cooler Description – Recommended for Sprinters that carry a full load, trailer or climbs mountains!
Many people are interested in extending the life of their Sprinter using an auxiliary automatic transmission cooler. If properly installed, an auxiliary transmission cooler offers great benefits. Sometimes vendors, eager to make the sale, overstate what a transmission coolers can do and if installed improperly, it may do more harm than good.
The automatic transmission produces a large amount of heat in normal operation. A lot like the human body, it is crucial for transmission temperature to remain at the proper temperature. Too little or too much heat shows problems. Under normal conditions, an automatic transmission operates at around 175 degrees Fahrenheit. Moisture can build up when the temperature dips below proper levels, which can cause efficiency issues with your transmission.
Sprinter transmissions can also run into problems when the temperature rises above 175 degrees. When the temperature rises, the transmission fluid begins to break down, which causes damage. Heat also induces expansion and alters tolerances on internal van components. Also, an overheated transmission will quickly fail.
All Sprinter manufacturers provide a way for automatic transmissions to cool. The automatic transmission fluid transports heat from internal components and passes it to the transmission case and pan. Air passing by the transmission case and pan also removes a good deal of heat from the transmission.
It is incredible how much your transmission’s lifespan improves with just a 20 degree drop in fluid temperature—it doubles! A decrease from 220 degrees to 195 degrees will make your transmission last another 50,000 miles!
An external transmission cooler is also a common thing that engineers provide. Most Sprinters have a transmission cooler built directly into the radiator and usually this is more than enough to maintain an adequate transmission temperature. Lubegard Automatic Transmission Protectant is also a good thing to use whenever you change the fluid, as it can reduce elevated temperatures by up to 40 degrees.
This Does not Replace your existing Transmission Cooler, This is an addition that INCREASES your Sprinter’s cooling Capability
- Preventing extra wear, tear and heat to your transmission
- Requires cutting and splicing into one factory transmission line hose.
- Comes with mounting bracket, for Either a 5 cylinder, or a 6th cylinder
This cooler is mounted under the bumper and the air that flows above the bumper downward.
Symptoms of Sprinter’s Overheating:
Burnt of Ineffective Fluid—You can tell if your fluid is burnt just by the smell of it. If it smells burnt then you get it drained and changed. You can tell if the fluid is ineffective by noticing contaminants in the fluid, loss of fluid viscosity or if it’s a dark brown color. Consider using synthetic fluids as they last longer and are more durable when exposed to cold and general wear.
Low Fluid Levels—You can look for low levels by checking the transmission dipstick. If levels are low then you need to add more fluid recommended by the manufacturer.
Transmission Slipping—this mostly occurs when the fluid levels are low, burnt or dirty. Other causes that are rare include worn gears, clutch issues, broken transmission bands. Slipping is also an indicator of bad fluid which causes the transmission to overheat.
Defective Solenoid—the solenoid is an electrical component that regulates the amount of fluid that is passed into the transmission. If it misbehaves, that may mean that not enough fluid is being pumped into the transmission, which causes overheating. Sometimes the circuitry causes the solenoid to behave erratically.
Other Causes of Sprinter Transmission Overheating:
Heavy Towing—The extra weight of the loads your van carries means your transmission must work even harder than normal just to start going, which causes it to overheat.
Lots of Stop and Go Traffic—Living in cities means there’s a lot more traffic which means you’re constantly stepping on the brakes and accelerator. Your Sprinter’s transmission then works harder than normal.
Hot Climate—a hot climate greatly contributes to an overheating transmission by increasing the temperature of the fluid. This means your van’s ATF will wear out a lot faster.
Check Fluids Often—this should be done routinely. We recommend doing it monthly. By checking it, you’ll be able to spot low levels or if its burnt or dirty. Also check regularly for leaks indicated by stains on the driveway or fluid around the transmission parts.
Change fluids regularly—we recommend changing the fluid every 30,000 to 60,000 miles, which is something you can do yourself. If you regularly drive in severely hot or stop and go conditions or drive with heavy loads, you should change the fluid more frequently, about every 15,000 miles. Lubegard Automatic Transmission Protectant helps extend the fluid life and reduce wear.
Cooling System—your Sprinter’s radiator has the job of cooling down the transmission so be sure to keep it healthy. You should change the coolant every 2 years. Also consider adding an external cooler if you drive with heavy loads. Stack plate transmission coolers are the best, they attach to the front of your van’s radiator. External coolers with built in fans are also a good option.
Consider adding a deep pan—this allows you to add more fluid, which helps to cool the transmission even more. This will give you better efficiency and performance. If you have an overheating transmission that happens quite often, consider purchasing a deeper pan. Also, aluminum pans help dissipate heat better than steel.