CoolingMedium
Water pump and thermostat (plastic) failure.
Head gasket / cooling system repair£900–£2,600
Inspect · Check for coolant leaks and overheating history.
2009–2016 Audi A4 · common fault repair costs
What the known faults on this Audi A4 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
- £900–£2,600
- Top three risks, from
- £1,980
- Worst case, everything
- £6,400
The single priciest documented job on the 2009–2016 Audi A4 is head gasket / cooling system repair at £900–£2,600. Few cars need every repair listed here · treat £2,160–£6,400 as the full exposure if one arrived with all of them.
Cost per fault
EngineCritical
Timing chain tensioner failure — can cause catastrophic damage if it lets go.
Timing chain, tensioner & guides£900–£2,400
Inspect · Listen for a rattle on cold start; confirm updated tensioner was fitted.
EngineHigh
2.0T TFSI excessive oil consumption from worn piston rings (early builds).
Oil leak trace & seal / gasket£180–£700
Inspect · Check oil level and top-up history; watch for smoke and ask about ring/piston work.
IntakeMedium
Carbon buildup on intake valves.
Routine repair£180–£700
Inspect · Watch for rough idle/misfires; ask about walnut blasting.
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 A4 this week?
Build a tickable checklist for the exact car in front of you, record faults with photos, and hand the buyer a report.