SevereAffected: 2012-202060,000–120,000 miles

Audi A3 8V 2.0 TDI 150bhp — Suspension Coil Spring Snapping

A very common MOT failure in the UK. Suspension coil springs corrode and snap, usually near the bottom pigtail.

Severity

Severe

DIY Difficulty

Hard

Est. Cost

£150–£300

OBD Codes

None

Component Diagram

Suspension

Typical layout and location for the Suspension assembly.

Reference Illustration

Symptoms

Loud 'twang' or bang when turning the steering wheel at low speeds
Car sits noticeably lower on one side
Grating noise over bumps

Root Cause

The protective coating on the steel spring chips from stone impacts. Salt water corrodes the exposed steel, weakening the spring until it fractures under load.

How To Fix

Visually inspect all four springs for fractures at the very bottom coil.
Always replace coil springs in pairs across an axle to maintain handling balance.
Cost: £150-300 per pair at an independent garage.

Estimated Repair Costs

Repair Option	Est. Cost (GBP)
DIY (parts only)	£60–£120
Independent Garage	£150–£300
Main Dealership	£240–£480

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.

Haldex Gen 5 Pump Failure (quattro models)

Severe

2013-201950,000–80,000 miles£400–£500

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

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.

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