Water pump and gray tank sensor problems leave your Sprinter camper without steady water or accurate tank readings. We test the pump, pressure switch, and sensor circuits, then replace the failed parts so faucets flow at proper pressure and your Riverside van reports real tank levels.
What this service includes
- Test the water pump, pressure switch, and voltage
- Check the gray tank sensor circuit and grounds
- Replace the failed pump or sensor with a matched part
- Prime the system and confirm pressure and readings
Signs your Sprinter needs it
- Water pump cycles on and off or runs with no flow
- Weak or pulsing pressure at the faucet
- Gray tank gauge reads wrong or stays stuck
What does water pump and gray tank sensors cost?
Ballpark pricing for water pump and gray tank sensors on a Sprinter runs $300 to $2,000. The final number depends on your model, mileage, and the exact cause, which we confirm with Xentry before any work is authorized. Diagnostic time is credited toward the repair. See the full pricing page.
Frequently asked questions
Why does my water pump keep cycling on and off?
Short cycling usually points to a worn pressure switch, an air leak, or a failing pump. We test the whole circuit so we replace the actual cause, not just the pump.
Can a bad sensor make my gray tank read wrong?
Yes. Corroded or fouled sensor contacts give false readings. We test and replace the sensor so your Riverside camper shows a level you can trust.