SevereAffected: 2013-201780,000–160,000 miles

Ford Fiesta Mk7 1.5 TDCi 75bhp — Diesel Injector Failure and Rough Running

Common rail injectors on the 1.5 TDCi can fail, causing misfires, excessive smoke and hard starting. Injector failure can also result in diesel washing the cylinder walls, accelerating engine wear.

Severity

Severe

DIY Difficulty

Professional Only

Est. Cost

£200–£800

OBD Codes

P0201P0202P0263P0266

Component Diagram

Injectors

Typical layout and location for the Injectors assembly.

Reference Illustration

Symptoms

Rough idle and shaking
Hard starting, especially when cold
Blue or white smoke at startup
Increased fuel consumption
P0201-P0204 injector circuit codes
Fuel smell in oil (dipstick smells of diesel)

Root Cause

Common rail injectors have extremely tight tolerances. Wear, contamination from poor-quality fuel, or water ingress causes them to dribble fuel into the cylinder at incorrect times. Each injector is coded to the ECU.

How To Fix

Read injector contribution codes — identifies the failing cylinder
Send injectors for ultrasonic cleaning and testing first (£50-80 per injector)
If beyond cleaning, replace faulty injectors — pattern injectors from £100, OEM £300+
New injectors must be coded to ECU by a diesel specialist
Check oil for diesel contamination — oil change needed if present

Estimated Repair Costs

Repair Option	Est. Cost (GBP)
DIY (parts only)	£80–£320
Independent Garage	£200–£800
Main Dealership	£320–£1280

Other Faults on This Variant

DPF Blockage and Regeneration Failure

Moderate

2013-201730,000–80,000 miles£150–£1200

The 1.5 TDCi diesel Fiesta is commonly used for short urban trips — exactly the wrong usage for a DPF-equipped car. Blocked DPF is the number one complaint.

EGR Valve Failure and Intake Carbonisation

Moderate

2013-201740,000–90,000 miles£80–£350

EGR failure on the 1.5 TDCi Fiesta is a common companion to DPF issues. Carbon deposits block the valve and intake manifold, causing power loss and rough running.

Turbocharger Oil Starvation and Failure

Severe

2013-201790,000–170,000 miles£400–£900

Turbo failure on the 1.5 TDCi is typically caused by oil feed pipe blockage or low oil levels. The small-displacement turbo spins at extreme speeds and is vulnerable to oil starvation.

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