ModerateAffected: 2016-202140,000–100,000 miles

Ford Transit Transit Custom 2.0 TDCi 130bhp — AdBlue System Fault and NOx Sensor Failure

Post-2016 Euro 6 Transit Customs use AdBlue SCR systems that develop NOx sensor faults, AdBlue pump failures and frozen lines in cold weather.

Severity

Moderate

DIY Difficulty

Moderate

Est. Cost

£150–£700

OBD Codes

P20EEP204F

Component Diagram

Electrics

Typical layout and location for the Electrics assembly.

Reference Illustration

Symptoms

AdBlue warning light
'Refill AdBlue' message
Countdown to engine start refusal
P20EE or P204F fault codes

Root Cause

NOx sensors are single-use components with a finite lifespan. The AdBlue pump and injector also wear. In cold UK winters, AdBlue tanks can freeze below -11°C.

How To Fix

Refill AdBlue if level is low — 10L typically required
NOx sensor replacement: £150-300 fitted
AdBlue pump failure: £400-700
Clear codes after repair — system reset required

Estimated Repair Costs

Repair Option	Est. Cost (GBP)
DIY (parts only)	£60–£280
Independent Garage	£150–£700
Main Dealership	£240–£1120

Other Faults on This Variant

DPF Blockage from Idling and Short Trips

Moderate

2013-202130,000–80,000 miles£200–£1000

Fleet Transit Customs spend long periods idling at low speed — the worst possible operating profile for a DPF. Blockage is the number one reported fault across UK fleets.

EGR Valve and Cooler Failure

Moderate

2013-202140,000–90,000 miles£300–£700

EGR failure on the Transit Custom 2.0 TDCi is extremely common in fleet use. The valve carbons up rapidly in stop-start environments.

Turbocharger Variable Vane Sticking

Severe

2013-202160,000–130,000 miles£200–£1000

The VNT turbocharger on the 2.0 TDCi Transit Custom develops sticky variable vanes from carbon build-up, causing power loss and limp mode.

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