Peugeot: B173d

For many drivers, seeing a "B" code is frightening, as these are traditionally reserved for Body Control Module (BCM) issues rather than engine performance. However, in the context of Peugeot, Citroën, and DS Automobiles, the B173D code has a very specific and common meaning: .

If you own a modern Peugeot equipped with a BlueHDi diesel engine, you may have recently been startled by the sudden illumination of the dreaded engine management light (often called the "orange anti-pollution light"). When you plug in an OBD2 scanner, the code that appears is often cryptic: B173D Peugeot . b173d peugeot

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). For many drivers, seeing a "B" code is

Due to the carbon buildup mentioned earlier, the tip of the glow plug fuses to the aluminum cylinder head. When you apply brute force with a wrench, the glow plug shears off, leaving the threaded body inside the head. Removing a snapped glow plug requires specialized tools (extractors) and sometimes removing the entire cylinder head, which costs $1,500+. When you plug in an OBD2 scanner, the

Erase the B173D code, start the engine on a cold morning, and re-scan. If it returns immediately, the fault is permanent.

Remember the golden rule of owning a modern diesel:

A: Yes, in most regions with strict emissions testing (UK, EU, California). The illuminated engine light is an automatic failure.