ExhaustHigh
DPF and AdBlue faults on 2.0 and 3.0 TDI
DPF forced regen or replacement£250–£1,600
Inspect · Check the AdBlue countdown and run to temperature
2014–2025 Audi A6 · common fault repair costs
What the known faults on this Audi A6 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
- £250–£1,600
- Top three risks, from
- £770
- Worst case, everything
- £5,300
The single priciest documented job on the 2014–2025 Audi A6 is dpf forced regen or replacement at £250–£1,600. Few cars need every repair listed here · treat £1,020–£5,300 as the full exposure if one arrived with all of them.
Cost per fault
TransmissionHigh
S tronic and multitronic judder and hesitation
Significant repair£400–£1,400
Inspect · Test from cold in slow traffic
ElectricalMedium
MMI, matrix headlight and sensor faults
Infotainment repair or software fix£120–£1,200
Inspect · Test the lights, screens and all driver assistance
SuspensionHigh
Air suspension on Avant models leaking and dropping
Suspension refresh (per axle)£250–£1,100
Inspect · Check overnight ride height on air-sprung cars
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 A6 this week?
Build a tickable checklist for the exact car in front of you, record faults with photos, and hand the buyer a report.