2016 Audi A6 Pre-Purchase Inspection Checklist
Known Issues — 2016 Audi A6
CRITICAL
3.0L TFSI V6 timing chain tensioner wear — cold-start rattle and risk of chain failure
MODERATE
Valve stem seal failure causing blue smoke on startup and oil consumption
MODERATE
S tronic mechatronic unit failure causing jerky shifts or fault codes
MODERATE
MMI 3G infotainment navigation unit freezing and GPS loss
MODERATE
Air suspension compressor failure on models with adaptive air suspension
MINOR
Headlight moisture intrusion on LED and Bi-Xenon units
What to Inspect
- Cold-start timing chain rattle — listen immediately after startup
- Check for blue smoke on startup and oil consumption between services
- Test S tronic shifts for smoothness across all gears
- Test air suspension leveling and hold — check for sagging corners
- Verify MMI navigation, Bluetooth, and all media inputs
- Inspect headlights for moisture or condensation inside lens
Expected Maintenance Costs
| Service | Interval | Cost |
|---|---|---|
| Oil change (synthetic) | every 10,000 miles | $150-$200 |
| S tronic transmission service | every 40,000 miles | $350-$500 |
| Spark plugs (V6) | every 40,000 miles | $200-$300 |
| Air suspension compressor (if failed) | as needed | $600-$1,200 |
| Brake fluid flush | every 2 years | $120-$160 |
| Quattro rear differential fluid | every 40,000 miles | $150-$220 |
| Timing chain service (if needed) | as needed | $1,500-$2,500 |
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