IsItAGoodCar

Common Problems with the
2015–2018 Audi A7 (4G8)

We've identified 4 known issues that can affect the 2015–2018 Audi A7 (4G8). 2 of these are serious faults that could be expensive to repair.

4
Known Issues
2
Serious
2
Moderate
0
Minor

The 2015–2018 period has 1 more issue than the Audi A7 (4G8) average across all year periods.

All Known Issues

S tronic (DL501) Mechatronic Failure

SeriousGearbox & Transmission

The 7-speed dual-clutch gearbox can suffer mechatronic unit failure, especially if the expensive fluid changes have been skipped.

Most affected: 3.0 TDI, 3.0 TFSI

Estimated cost: £1,000–£2,500Affects: 2010–2018

Typical symptoms

  • •Jerky pull-away
  • •Hesitation selecting reverse
  • •Gearbox malfunction warning message

What to inspect before you buy

  • ✓Test drive in slow traffic
  • ✓Look for invoice proof of DSG fluid changes every 38k miles

Air Suspension Strut Leaks

SeriousSuspension & Chassis

Cars with adaptive air suspension develop slow leaks in the air struts, causing uneven ride height and eventual compressor burnout.

Most affected: Models with adaptive air suspension

Estimated cost: £700–£2,000Affects: 2010–2018Often appears around: 70k-120k miles

Typical symptoms

  • •Car sitting low on one corner overnight
  • •Compressor running for extended periods
  • •Level-control warning

What to inspect before you buy

  • ✓Check ride height before starting and after standing overnight
  • ✓Cycle through height settings
  • ✓Check for evidence of previous strut or compressor replacement

Electrical Module and Sensor Faults

ModerateElectrics & Electronics

The A7 C7 can develop various electrical faults including faulty sensors, central locking issues, and MMI glitches.

Most affected: All models

Estimated cost: £150–£1,200Affects: 2010–2018Often appears around: 60k-120k miles

Typical symptoms

  • •Intermittent warning lights
  • •Central locking or window faults
  • •Infotainment screen freezing

What to inspect before you buy

  • ✓Scan for stored fault codes
  • ✓Test all electrical functions
  • ✓Check software version

DPF and EGR Issues on Diesels

ModerateExhaust & Emissions

Short-trip diesel A7s suffer DPF blockages and EGR clogging, bringing limp mode and expensive repairs.

Most affected: 3.0 TDI

Estimated cost: £250–£1,500Affects: 2010–2018Often appears around: 70k-130k miles

Typical symptoms

  • •DPF warning light
  • •Limp mode
  • •Reduced performance

What to inspect before you buy

  • ✓Ask about driving patterns
  • ✓Check for DPF and EGR fault codes
  • ✓Verify emissions history

Buying Tips for the 2015 Audi A7 (4G8)

  • ✓On the 3.0 TDI, listen carefully for timing chain rattle on a cold start
  • ✓Check S tronic (DSG) models for smooth pull-away and reverse engagement; fluid changes every 38,000 miles are critical
  • ✓Ensure the frameless windows drop slightly when opening the doors and reseal correctly without wind noise
2010–2014 Audi A7 (4G8)

Browse 2015–2018 Audi A7 (4G8) in our Directory

View MOT history, registration data, and reliability scores for 2015–2018 Audi A7 (4G8) vehicles.

View 2015–2018 Directory

Other Audi A7 (4G8) Year Periods

2010–20142015–2018

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