Audi A4 B6 S4
Model overview
The B6 Audi A4 remains refined and versatile, but age, suspension wear, electrical faults and body-condition issues are more significant than the badge or engine size. Exact engine and body specification should be confirmed before purchase.
Pros
- Refined, stable driving manners
- Wide engine and body-style choice
- Well-supported period model
Cons
- Suspension can require costly renewal
- Engine servicing differs by code
- Cabriolets add roof and drainage checks
Common problems & ownership concerns
Potential impact: Low · Medium · High. This describes possible consequences, not fault likelihood.
- Front multi-link suspension wearMedium
- Age-related electrical and water-ingress faultsMedium
- Cabriolet roof and body corrosion checksMedium
Maintenance
Follow the VIN- and engine-code-specific servicing schedule, with particular attention to timing-drive records, suspension condition and body drainage.
Engine overview · 4.2L 8-cyl PETROL
This naturally aspirated 4.2-litre V8 delivers smooth, strong performance, but its rear-mounted timing-chain system and age-related ancillary repairs can make neglected examples expensive to recommission.
Pros
- Smooth, strong naturally aspirated V8 character.
- Manual and automatic applications were available.
Cons
- Timing-chain access is labour-intensive.
- High fuel and maintenance costs.
- Older examples need careful cooling and oil-leak assessment.
Common problems & ownership concerns
Potential impact: Low · Medium · High. This describes possible consequences, not fault likelihood.
- Rear-mounted timing-chain wearHigh
- Oil leaks or oil consumptionMedium
- Cooling-system and ancillary ageingHigh
Maintenance
Follow the VIN-specific schedule and correct oil specification; keep documented checks for chain noise, oil leaks, coolant condition and spark-plug servicing.
These are general ownership concerns, not a diagnosis. Equipment and engine details vary by version and production date.
Considering a particular car?
Get a Deep Report on the listing: relevant model risks, gaps in the advert and focused questions for the seller.