Audi brand mark

2021–2025 Audi Q4 e-tron · common fault repair costs

What the known faults on this Audi Q4 e-tron typically cost to put right at a UK independent garage · use the figures to price risk before you bid, and to justify a reduction when something shows up on inspection.

Cost at a glance

Most expensive fault
£600–£2,600
Top three risks, from
£970
Worst case, everything
£9,950

The single priciest documented job on the 2021–2025 Audi Q4 e-tron is charging / power electronics repair at £600–£2,600. Few cars need every repair listed here · treat £1,850–£9,950 as the full exposure if one arrived with all of them.

Cost per fault

ElectricalMedium

Onboard charger and rapid charging speed inconsistencies

Charging / power electronics repair£600–£2,600

Inspect · Ask for charging history and check for any charging fault warnings

BodyworkLow

Paintwork chipping on lower bumper edges from new

Body & corrosion repair£250–£1,800

Inspect · Inspect lower bumper and sill edges for chips and touch-up paint

ElectricalMedium

MMI infotainment freezes and slow system responses

Infotainment repair or software fix£120–£1,200

Inspect · Cycle through infotainment menus and check for lag or freezing

SuspensionMedium

Adaptive damper faults on S line and higher trims

Suspension refresh (per axle)£250–£1,100

Inspect · Check for suspension warning messages and inconsistent ride comfort

Exterior ElectricalLow

Electric tailgate struts groan during operation, or the hands-free kick sensor fails entirely due to water ingress in the rear bumper module.

Suspension refresh (per axle)£250–£1,100

Inspect · Operate the tailgate using the key fob to listen for strut groaning, then use a kicking motion under the rear bumper centre to test the hands-free sensor.

Climate ControlMedium

Failure to produce hot or cold air due to faulty pressure sensors or valve blocks, specifically on models equipped with the optional heat pump.

Air-con regas or compressor£90–£900

Inspect · Set the climate control to 'HI' then 'LO' with the fan on maximum. Verify distinct temperature changes at the vents within 60 seconds.

BrakesLow

Squealing or grinding noise from the rear drum brakes at low speeds, or binding when pulling away due to lack of mechanical use and moisture build-up.

Brakes (discs, pads, caliper)£200–£800

Inspect · Select neutral while rolling at low speed to disable regenerative braking, apply the footbrake gently, and listen for rear-axle grinding or squealing.

InteriorLow

Trim rattles from dashboard and panoramic roof surround

Interior trim repair£90–£450

Inspect · Drive over rough surfaces and listen for interior rattles

Ranges are indicative parts-and-labour costs at a UK independent garage, inclusive of VAT. Franchised dealers typically sit 40–80% higher, and prestige or electrified variants sit at the top of each band. Always get a written quote before committing.

Inspecting a Audi Q4 e-tron this week?

Build a tickable checklist for the exact car in front of you, record faults with photos, and hand the buyer a report.