Question 1

What are the symptoms of a failing Emissions & Exhaust on a T1N Sprinter?

Accepted Answer

Check engine light with a countdown to "no restart" or a reduced-speed warning on the cluster Limp mode after highway driving, or regeneration cycles that never complete Strong diesel or ammonia smell, visible soot, or a rattling exhaust component Fuel economy dropping several MPG with no change in how the van is driven AdBlue/DEF consumption climbing or a DEF quality warning that returns after a top-up

Question 2

Which fault codes point to this T1N Sprinter repair?

Accepted Answer

P2002 / P244A / P244B: Particulate filter efficiency or differential pressure out of range. P20EE / P207F: SCR catalyst efficiency below threshold. P229F / P2201: NOx sensor circuit or signal implausible. P0401 / P0404: EGR flow insufficient or EGR position performance. P042E: EGR/exhaust flap stuck open. Confirm with a scan tool before ordering — codes narrow the system, not the exact part.

Question 3

Does Mercedes Sprinter T1N EGR Valve – Pierburg OEM | OM647 2.7L 5-Cylinder | #6461420119 (2004–2006) fit my Sprinter?

Accepted Answer

Listed for T1N Sprinter, 2004–2006, OM647 engine. Cross-reference 6461420119 against the number on the component you are replacing. Listed for the T1N generation (2002–2006). Parts are not interchangeable across generations, so confirm the chassis before ordering. This part is listed for the OM647 engine code. Confirm the code on your engine data plate or build sheet matches before ordering.

Mercedes Sprinter T1N EGR Valve – Pierburg OEM | OM647 2.7L 5-Cylinder | #6461420119 (2004–2006)

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