Common Problems with the
2025 Audi A4 Mk1 (B5)

Buying Tips for 2025 Audi A4 Mk1 (B5)

• Inspect the complex multi-link front suspension carefully; clunks or vague steering indicate worn control arms, and replacing the entire setup is expensive.
• Check the scuttle panel area under the windscreen for standing water; blocked drains here will flood the brake servo and the cabin electrics.
• Listen to the 1.8T or V6 engines for rattling timing chains or belts; comprehensive service history detailing cambelt replacements is non-negotiable.
• Ensure the central locking system works properly, as it relies on a fragile pneumatic pump in the boot that is prone to moisture damage.
• Check the condition of the interior soft-touch plastics, which tend to peel and degrade, leaving a sticky residue on the switches and door handles.
• Verify the operation of the climate control unit; missing pixels on the LCD screen or a lack of cold air points to failing stepper motors or A/C compressor issues.