In older diesels, glow plugs only activated for 10–30 seconds before starting the engine to heat the combustion chamber. Once the engine was running, the glow plugs turned off.
Disclaimer: This article is for informational purposes only. Always consult your vehicle's service manual and follow safety procedures. Torque specifications vary by engine code (DV6C, DV6D, DW10). b173d peugeot
A: No. AdBlue (SCR) is for NOx reduction. Glow plugs (B173D) are for combustion stability. However, a failed DPF caused by B173D can eventually clog the AdBlue injector. Conclusion The B173D Peugeot code is a classic, predictable failure on modern Peugeot, Citroen, and DS diesel engines. While the code sounds like a complex body control module error, it is almost always a simple electrical fault in the cylinder 4 glow plug circuit. In older diesels, glow plugs only activated for
Remember the golden rule of owning a modern diesel: Always consult your vehicle's service manual and follow
Erase the B173D code, start the engine on a cold morning, and re-scan. If it returns immediately, the fault is permanent.
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