p2004
Moderate
Mercedes-Benz · SUVs
Intake Manifold Runner Control Stuck Open Bank 1
Quick Answer
Error code P2004 on your Mercedes-Benz SUVs means: Intake Manifold Runner Control Stuck Open Bank 1. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
X243X247X254V167X167AMG GLB35 4MATIC 2024AMG GLC43 4MATIC 2024AMG GLC63 S 2024AMG GLE53 4MATIC+ 2024AMG GLE63 S 2024AMG GLS63 2024EQB 250+ 2024EQB 300 4MATIC 2024EQB 350 4MATIC 2024GLB250 2024GLB250 4MATIC 2024GLC300 2024GLC300 4MATIC 2024GLE350 4MATIC 2024GLE450 4MATIC 2024GLS450 4MATIC 2024GLS580 4MATIC 2024Maybach GLS600 2024
Likely Causes
How to Fix It
1
Remove the engine cover and visually inspect the intake manifold runner flaps
2
Actuate the runner control motor with a scan tool to check movement
3
Clean heavy carbon deposits from the intake runner flaps and ports
4
Inspect the internal flap linkage and pivot pins for breakage
5
Replace the intake manifold assembly if internal components are fractured
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
Intake manifold runner control actuator
Intake manifold assembly
Intake manifold gaskets
Intake cleaning solvent
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