Free API
Help
2017 AUDI S5
3.0L Supercharged V6•AWD•AUTOMATIC•gas•CGWD•supercharged
Founding sponsor spot is openYour name on every procedure for this vehicle, permanently.Sponsor — $99 →
Repairs0Labor496Torque3149Fluid9DTC1896Battery1Maintenance0Recalls0
P0168moderate severityPowertrain

Fuel Temperature Too High

on 2017 Audi S5 3.0L Supercharged V6 · AWD

What this code means

The PCM has detected that fuel temperature has exceeded the expected safe range. High fuel temperature can affect fuel density and injection accuracy, impacting performance and emissions.

Symptoms

  • Reduced engine power
  • Poor fuel economy
  • Check engine light on

Common causes

  • Faulty fuel temperature sensor
  • Return fuel line overheating near exhaust
  • Wiring or connector fault at sensor
  • Actual overheated fuel due to low tank level

Diagnostic steps

  1. Read fuel temperature sensor value with scan tool
  2. Compare reading to actual fuel/ambient temperature
  3. Inspect sensor wiring and connectors for damage
  4. Test sensor resistance against spec and replace if faulty
🔌 Don't have a code reader?
Any of these will read and clear this code — pick by how deep you want to go.
Budget handheld~$40
ANCEL AD410 →
No-phone-needed handheld — reads, clears, live data, freeze frame.
✓ ANCEL official store
Serious DIY~$100
BlueDriver Pro →
Enhanced codes (ABS, airbag, TPMS) plus repair reports.
SHOP FAVORITE
Shop-grade tablet~$300
Autel MaxiCOM MK808S →
Bidirectional tests, service resets, all systems.
✓ Autel official store
Pro diagnostics$1,500+
Autel MaxiSys MS906 Pro →
Full-system pro platform — topology mapping, ECU coding, the works.
✓ Autel official store
As an Amazon Associate and Autel/ANCEL partner, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.

Other Powertrain codes on this vehicle

🔌 Need this data in your app? It's all in the free API →
🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years. Spot an error? Use the Help link above — a human reads every report.
Stuck on this repair? Take it to The Diag Desk — ask a master tech about this exact car → real human answer within 24h, never AI
Share:XRedditFBWhatsAppThreadsEmail
⚠ STILL BEHIND THE PAYWALL
The 2017 Audi S5 repair data is incomplete because no one has sponsored it yet. For $99, we generate the full step-by-step procedures, then fact-check them with a second AI pass and your expert review. Your name on every procedure, permanently.
The same data would cost $169/mo from Mitchell1 or $30/year from ALLDATAdiy — and you'd be renting access, not freeing it. Sponsor once, free forever.
Sponsor the Audi S5 — $99 →
Building an app?
Free API access to all this data — 10 requests/day, no card required.
Get an API key →
Run a shop?
Manage repairs, estimates, and customers with ShopBase — $249/mo, all features included.
Try ShopBase →