AdBlue must be a precise 32.5 percent urea solution. Topping off with water, the wrong fluid, or old contaminated DEF throws off the SCR system and trips faults. We test the concentration with a refractometer and flush and refill when it is out of spec.
Signs You Need AdBlue Quality Testing
If your Sprinter shows any of the following in Orange County traffic or on the freeway, it is time to have this checked:
- SCR or DEF quality fault codes
- Recently topped off with unknown fluid
- Emissions light after a DEF fill
- Crystals or cloudiness in the tank
What Our AdBlue Quality Testing Includes
- Refractometer concentration test
- Contamination inspection
- DEF flush if out of spec
- Fresh certified AdBlue refill
- Fault clear
Ballpark Pricing
Ballpark: $120 test, $300 to $700 flush. Sprinter pricing varies with model year, parts, and condition, so we always confirm a firm price before starting. See our pricing page for more ranges, or call (714) 646-1433 for an exact quote.
Why Orange County Sprinter Owners Trust Us for AdBlue Quality Testing
AdBlue Quality Testing on a Mercedes Sprinter is not the same as a generic van repair. We diagnose with real Mercedes Xentry equipment, use OEM and OE-quality parts, and fix the root cause so the problem does not come back. Drivers across Anaheim, Irvine, and all of Orange County bring us their diesel, gas, and eSprinter vans because we do the job right the first time and stand behind our work.