P186A Diagnostic Trouble Code Discussion for November 2018
Engine cannot be started due to exhaust aftertreatment system tampered with
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| Help Request | Posted | |
| 2014 Mercedes-Benz Sprinter 2500 3.0L MIL Lamp on VIN: WD3PE8CC3E P186A: Engine cannot be started due to exhaust aftertreatment system tampered with. Third time in for same issue. Customer does not bring in until one start remaining. Biggest mystery is that there have never been ANY codes in SCR module, only CDI. First visit we found DEF injector caked up, so cleaned and ran volume test, 15 grams = OK, ... |
November 02, 2018 |
