SevereAffected: 2013-201950,000–80,000 miles

Audi A3 8V 2.0 TDI 150bhp — Haldex Gen 5 Pump Failure (quattro models)

On quattro models, the Generation 5 Haldex unit frequently fails because VW/Audi removed the filter present on older generations.

Severity

Severe

DIY Difficulty

Moderate

Est. Cost

£400–£500

OBD Codes

C111307C111204

Symptoms

Total loss of all-wheel drive (front wheels spin easily in the wet)
No warning light on the dashboard in most cases
VCDS fault code for Haldex pump mechanical failure

Root Cause

The Generation 5 unit does not have a replaceable filter. The oil strainer on the pump gets completely clogged with clutch friction material, burning out the pump.

How To Fix

The Haldex oil MUST be changed every 30,000 miles, and the pump MUST be removed to clean the strainer mesh.
If the pump is dead, replace it (£250 part).
Clean the housing out, fit new pump, and fill with correct fluid.
Cost: £400-500

Estimated Repair Costs

Repair Option	Est. Cost (GBP)
DIY (parts only)	£160–£200
Independent Garage	£400–£500
Main Dealership	£640–£800

Other Faults on This Variant

Water Pump / Coolant SIlca Bag Rupture

Critical

2013-201940,000–90,000 miles£800–£1500

The coolant expansion tank contains a 'Silica bag' designed to extend coolant life. This bag frequently bursts, sending silica gel through the engine and destroying the water pump and heater matrix.

DSG DQ250 Dual Mass Flywheel Wear

Moderate

2013-201980,000–140,000 miles£700–£1000

The 6-speed wet DSG gearbox (DQ250) is highly reliable, but the Dual Mass Flywheel (DMF) attached to it is a consumable item that fails predictably.

MMI Infotainment Screen Mechanism Failure

Minor

2013-201960,000–120,000 miles£150–£800

The pop-up MMI screen in the dashboard frequently gets stuck or stops working entirely due to a broken wiring ribbon or failed motor mechanism.

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