OBD Guide

P218F

Reductant No Flow Detected

P218F is an OBD-II diagnostic trouble code meaning: Reductant No Flow Detected. Common causes: the adblue reagent in the tank has run out, adblue pump malfunction. Estimated repair cost: $17โ€“111.

Severity
๐Ÿ”ด High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17โ€“111 (est.)

Symptoms

  • Check Engine light comes on
  • Reduced engine power
  • Increased fuel consumption
  • AdBlue error message on the dashboard
  • Possible transition to emergency mode

Causes

  • The AdBlue reagent in the tank has run out
  • AdBlue pump malfunction
  • AdBlue filter or nozzle clogged
  • Open or short circuit in the sensor or pump circuit
  • Problems with the SCR control unit

How to Fix

  1. Check AdBlue level and top up if necessary
  2. Check the operation of the AdBlue pump
  3. Clean or replace the system filter and nozzle
  4. Check the integrity of the system wiring and connectors
  5. Scan the system for additional errors

Related codes

Error P218F by Vehicle Brand

FAQ

What does the P218F code mean?

P218F is an OBD-II diagnostic trouble code that indicates: Reductant No Flow Detected

What causes a P218F error code?

The most common causes of P218F include: The AdBlue reagent in the tank has run out; AdBlue pump malfunction; AdBlue filter or nozzle clogged; Open or short circuit in the sensor or pump circuit.

How do I fix a P218F diagnostic trouble code?

To fix P218F: Check AdBlue level and top up if necessary. Check the operation of the AdBlue pump. Clean or replace the system filter and nozzle. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P218F?

Limited driving only, diagnose soon

How much does it cost to fix P218F?

The estimated repair cost for P218F is $17โ€“111. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version ยท NationStat