How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Kevin Your Own Question
Kevin, Master tech
Category: Mercedes
Satisfied Customers: 1952
Experience:  Diagnostic technician
Type Your Mercedes Question Here...
Kevin is online now
A new question is answered every 9 seconds

P20db code, yes exact code....reductant heater control

Customer Question

p20db code
JA: Just to clarify, what's the exact code? And have you tried to reset it?
Customer: yes exact code....reductant heater B control circuit/open
JA: What is the model/year of your Mercedes?
Customer: 2011 sprinter
JA: Are you fixing your Sprinter yourself? What have you tried so far?
Customer: i didnt try nothing yet
JA: Anything else you want the mechanic to know before I connect you?
Customer: thats all what should i replace?
Submitted: 9 months ago.
Category: Mercedes
Expert:  Kevin replied 9 months ago.

Hi im kevin you need to replace def heater element .this is basically a heater element that sits in the top of the addblue tank .its around 2 hours work to replace and tank will need to be refilled with adblue after

Expert:  Kevin replied 9 months ago.

please rate my service