SevereAffected: 2008-2017110,000–200,000 miles

Vauxhall Insignia Mk1 2.0 CDTi 130bhp — Injector Failure

High-mileage Insignia CDTi examples develop injector wear, causing rough running and rising oil levels from diesel contamination.

Severity

Severe

DIY Difficulty

Professional Only

Est. Cost

£350–£1200

OBD Codes

P0201P0202

Component Diagram

Injectors

Typical layout and location for the Injectors assembly.

Reference Illustration

Symptoms

Rough idle
Hard starting
White smoke
Rising oil level
P0201-P0204 codes

Root Cause

Common rail injector wear at high mileage. Contaminated fuel or overextended service intervals accelerate degradation.

How To Fix

Contribution test — identifies failing cylinder
Ultrasonic clean before replacement
New injectors coded to ECU
Cost: £300-600 per injector fitted

Estimated Repair Costs

Repair Option	Est. Cost (GBP)
DIY (parts only)	£140–£480
Independent Garage	£350–£1200
Main Dealership	£560–£1920

Other Faults on This Variant

DPF Blockage

Moderate

2008-201750,000–100,000 miles£250–£1300

The Insignia 2.0 CDTi is a fleet rep car often driven on short local trips rather than the motorway runs it is designed for. DPF blockage is endemic on urban-use examples.

EGR Cooler Failure

Severe

2008-201770,000–140,000 miles£600–£1000

EGR cooler failure on the Insignia 2.0 CDTi causes coolant to enter the intake manifold — a serious failure that requires immediate attention.

Turbocharger Failure

Severe

2008-2017100,000–180,000 miles£700–£1200

Turbo failure on the Insignia 2.0 CDTi follows the standard pattern — oil sludge in the feed pipe starves the bearings, often on cars with extended oil change intervals.

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