ModerateAffected: 2006-201460,000–100,000 miles

Vauxhall Corsa Corsa D 1.3 CDTi 75bhp — Glow Plug Snapping in Cylinder Head

While replacing blown glow plugs is normal maintenance, on the 1.3 CDTi they are notoriously long, thin, and seize into the cylinder head.

Severity

Moderate

DIY Difficulty

Hard

Est. Cost

£60–£300

OBD Codes

P0683P0380

Component Diagram

Injectors

Typical layout and location for the Injectors assembly.

Reference Illustration

Symptoms

Spanner light on dashboard shortly after starting
Rough idle for first 30 seconds when cold
P0683 or P0380 glow plug codes

Root Cause

Carbon builds up around the tip of the glow plug inside the cylinder. When a mechanic tries to unscrew it, the tip snaps off inside the engine.

How To Fix

Soak plugs in penetrating oil for 3 days before attempting removal. Use a torque wrench in reverse (max 20Nm). If snapped, a specialist extraction service is required (£150-300).

Estimated Repair Costs

Repair Option	Est. Cost (GBP)
DIY (parts only)	£24–£120
Independent Garage	£60–£300
Main Dealership	£96–£480

Other Faults on This Variant

EGR Valve Failure and Carbon Build-Up

Moderate

2006-201450,000–100,000 miles£80–£280

The Fiat/GM 1.3 CDTi is a capable diesel but its EGR valve blocks with carbon deposits regularly. This is one of the most common Corsa D complaints.

Diesel Particulate Filter Blockage

Moderate

2006-201440,000–90,000 miles£150–£800

DPF blockage is endemic on the 1.3 CDTi Corsa, largely because most owners use them for short trips where the DPF cannot self-clean.

EGR Valve Seized Open

Moderate

2006-201440,000–90,000 miles£150–£250

The EGR valve on the 1.3 CDTi clogs rapidly, usually jamming open and causing terrible starting and idling.

Disclaimer: Repair cost estimates are indicative and based on community data. Always get a quote from a qualified mechanic before proceeding with any repair.