Audi, A1 Common Issues

Oil leaks
Faulty sunroof drains
Issues with the 6-speed dual-clutch transmission (DQ250)
Water ingress through the side doors
Faulty DSG clutch packs
Electrical problems with the infotainment system and navigation
Rear axle bearing wear
Turbocharger failure in high-performance models
Fuel pump failure
Issues with the fuel injection system (injection pressure sensor or faulty injectors)
Coolant leaks
Faulty automatic climate control systems
Battery drain issues due to parasitic electrical load
Wear on the air conditioning compressor clutch
Rear shock absorber leakage
Front and rear brake pad wear, with some models experiencing excessive brake dust production
Electrical connectivity issues between the battery and alternator
Faulty fuel pressure regulators
Gearbox failure in high-mileage vehicles, often due to worn-out bearing cages or incorrect clutch engagement
Timing chain stretch (in affected models)