2010-2017 Audi A8 S8 Repair Manual

2010-2017 Audi A8 / A8L / S8 (D4/4H) OEM Workshop Service & Repair Manual – Instant PDF Download

🔧 Your Ultimate Repair & Maintenance Guide for the Audi A8 & S8!

Get the official OEM workshop service and repair manual for the 2010-2017 Audi A8 Limousine (A8 Lim/A8L Lim) and S8 (D4/4H, Type 4H, 4H2, 4H8, 4HL) in full-color PDF format—the same manual used by Audi dealership technicians. This comprehensive guide includes detailed electrical wiring diagrams and step-by-step instructions for accurate diagnostics, maintenance, and repairs.

Key Features:

✅ Complete OEM Repair Manual – Covers all service, repair, and maintenance procedures.

✅ Full-Color Electrical Wiring Diagrams – Essential for troubleshooting and electrical repairs.

✅ Dealer-Authorized Instructions – Factory-approved procedures for precise servicing.

✅ Step-by-Step Guidance – From routine maintenance to advanced diagnostics.

✅ User-Friendly PDF Format – Instant access on any device, print only what you need.

What’s Inside?

• Engine Overhaul & Performance Tuning
• Transmission & Drivetrain Repair
• Brakes, Suspension & Steering Systems
• Full Electrical System & Wiring Diagrams
• Body, Interior & HVAC Systems
• Routine Maintenance & Service Schedules
• Diagnostic Procedures & Troubleshooting Guides

🛠 Why Choose This Manual?

Whether you’re a DIY enthusiast or a professional mechanic, this factory-approved Audi A8 / S8 manual ensures you have the most precise and reliable service information available.

📥 Download Now & Take Full Control of Your Repairs!

Avoid costly mistakes—get the official Audi A8 / S8 workshop manual today and ensure expert-level care for your luxury sedan!

🔗 Instant PDF Download – Available Now!

Table of Contents : 2010-2017 Audi A8 S8 (D4/4H)

Workshop Repair Manual

• Maintenance
• 4-cylinder direct-injection engine (2.0 ltr. 4-valve TFSI – generation II – CHJA)
• 6-cylinder direct petrol injection engine (2.5 ltr. 4-valve – CPAA)
• 6-cylinder TDI engine (3.0 ltr. 4-valve common rail), mechanics – CDTA, CDTB, CLAB, CMHA, CPNA, CTBA, CTBB, CDTC, CPNB
• 6-cylinder direct petrol injection engine with a supercharger (3.0 ltr. 4-valve – CGWA, CGXC, CMDA, CGWD, CTUB)
• 8-cylinder direct-injection engine (4.0 ltr. 4-valve TFSI – CEUA, CGTA, CTFA, CTGA)
• 8-cylinder TDI engine (4.2 ltr. 4-valve common rail – CDSB, CTEC)
• 8-cylinder direct-injection engine (4.2 ltr. 4-valve – CDRA)
• 12-cylinder direct petrol injection engine (6.3 ltr. 4-valve – CEJA, CTNA)
• TDI injection and glow plug system (6-cyl. 3.0 ltr. 4-valve common rail – CDTA, CDTB, CLAB, CMHA, CPNA)
• TDI injection and glow plug system (8-cyl. 4.2 ltr. 4-valve common rail – CDSB)
• Direct petrol injection and ignition system (4-cyl. 2.0 ltr. 4-valve turbo with timing chain – CHJA)
• Direct petrol injection and ignition system (8-cyl. 4.2 ltr. 4-valve – CDRA)
• Direct petrol injection and ignition system (12-cyl. 6.3 ltr. 4-valve – CEJA)
• Direct injection and ignition system (8-cyl. 4.0 ltr. 4-valve TFSI – CEUA, CGTA)
• Simos direct petrol injection and ignition system (6-cyl. 2.5 ltr. 4-valve – CPAA)
• Simos direct petrol injection and ignition system (6-cyl. 3.0 ltr. TFSI 4-valve –  CGWA, CGXA, CMDA, CGWD, CTUB)
• Fuel supply system, diesel engines
• Fuel supply system, petrol engines
• 8-speed automatic gearbox 0BL, four-wheel drive
• 8-speed automatic gearbox 0BW hybrid, front-wheel drive
• Running gear, front-wheel drive and four-wheel drive
• Wheel/Tyre Guide
• Auxiliary heater, supplementary heater
• Heating, air conditioning
• Body Repairs
• General body repairs, interior
• General body repairs, exterior
• Brake system
• Communication
• Electrical system; General information
• Basic information on high-voltage vehicles
• Current Flow Diagram

Sample Pages

🛠️ Common Issues with the 2010-2017 Audi A8 /A8L / S8

The 2010-2017 Audi A8 (D4 generation) is Audi’s flagship full-size luxury sedan, offering advanced technology, a luxurious interior, and a refined ride. It was available in standard wheelbase (A8), long-wheelbase (A8L) for extra rear-seat space, and high-performance S8 variants.

The D4 generation (2010-2017) featured:

• Aluminum-intensive Audi Space Frame (ASF) construction
• Quattro AWD as standard
• Advanced technology, including MMI Touch, adaptive air suspension, and Audi’s Virtual Cockpit (later years)
• A variety of engines, including V6, V8, W12, and twin-turbo V8 in the S8

This generation competed with the Mercedes-Benz S-Class, BMW 7 Series, and Lexus LS.

Common Issues Reported By Owners

While the D4 A8 and S8 are well-engineered, some notable issues have been reported, particularly related to electronics, air suspension, and the transmission.

1. Air Suspension Failure (Adaptive Air Suspension)

• Issue: The A8 features adaptive air suspension, which can fail over time, leading to uneven ride height or a harsh ride.
• Symptoms: Sagging suspension, harsh ride, suspension warning light.
• Remedy: Replacing air struts (~$1,500 per corner) or switching to coilover conversion kits.

2. Transmission Jerking & Rough Shifting (ZF 8-Speed Auto)

• Issue: The ZF 8HP transmission can develop jerky shifts or hesitation.
• Symptoms: Hard shifting, delayed throttle response, transmission faults.
• Remedy: Transmission software updates and fluid changes (~$400) every 40,000-50,000 miles.

3. Carbon Buildup (FSI Direct Injection Engines)

• Issue: The direct-injected V6, V8, and W12 engines are prone to carbon buildup on intake valves.
• Symptoms: Reduced power, rough idle, check engine light.
• Remedy: A walnut blasting intake cleaning (~$500-$1,000) every 60,000-80,000 miles.

4. Oil Consumption (4.0L Twin-Turbo V8 & W12)

• Issue: Some 4.0L V8 (S8, A8 4.0T) and W12 engines suffer from excessive oil consumption.
• Symptoms: Low oil warning, needing frequent top-offs.
• Remedy: Frequent oil changes (every 5,000 miles) with high-quality synthetic oil.

5. Timing Chain Rattle (3.0T & 4.0T Engines)

• Issue: The timing chain tensioners in the 3.0L Supercharged V6 and 4.0L Twin-Turbo V8 can wear prematurely.
• Symptoms: Rattling noise on startup, check engine light, loss of power.
• Remedy: If rattling occurs, replacing the timing chain tensioners (~$3,500-$5,000) is recommended.

6. MMI (Infotainment System) Failures

• Issue: The MMI (Multi-Media Interface) system may freeze or fail, especially in early models.
• Symptoms: Unresponsive screen, Bluetooth failures, audio issues.
• Remedy: Software updates, module replacement (~$1,000-$2,000).

7. W12 Engine Repairs Are Expensive

• Issue: The A8 W12 model has an extremely complex engine, making repairs expensive.
• Symptoms: High maintenance costs, difficulty finding parts.
• Remedy: The V8 models are more practical for long-term ownership.

Common Mechanical Issues

1. Engine Performance
   • 4.0L TFSI V8 (S8 and A8L):
     • Timing chain tensioner failure, leading to rattling noises, misfires, or engine damage.
     • Fix: Timing chain and tensioner replacement (costly repair).
   • 3.0L TFSI Supercharged V6 (A8):
     • Generally reliable, but some reports of supercharger intercooler leaks or PCV valve failures.
2. Transmission Issues
   • 8-Speed Tiptronic Automatic:
     • Rough shifting, delayed engagement, or transmission failure.
     • Fix: Software updates or valve body replacements.
3. Air Suspension Failures
   • Problem: Air suspension leaks or compressor failures, leading to uneven ride height or suspension sag.
   • Fix: Replacement of air springs or compressors.
4. Oil Leaks
   • Problem: Leaks from valve cover gaskets, oil filter housings, or rear main seals.
   • Fix: Gasket replacements or resealing.
5. Brake System
   • Problem: Premature brake pad/rotor wear or squeaking noises.
   • Fix: Regular inspection and replacement of worn components.

Common Electrical Issues

1. Infotainment System Glitches
   • Problem: MMI (Multi Media Interface) screen freezes, unresponsive controls, or Bluetooth disconnections.
   • Fix: Software updates or module replacements.
2. Battery Drain
   • Problem: Parasitic drain caused by faulty modules (e.g., MMI, comfort control) or aftermarket accessories.
   • Fix: Diagnose and replace faulty components.
3. Faulty Sensors
   • Problem: Erratic behavior from TPMS (Tire Pressure Monitoring System), parking sensors, or adaptive cruise control sensors.
4. Electrical Gremlins
   • Problem: Intermittent issues with power windows, door locks, or interior lighting.
5. Keyless Entry/Remote Issues

• • Problem: Intermittent failure to lock/unlock doors or start the vehicle.
  • Fix: Replace key fob batteries or faulty receivers.

Performance Specs

Maintenance Schedule

Proper maintenance is essential, especially for the air suspension, timing chains, and transmission.

Competitors

The 2010-2017 Audi A8/S8 competed against the Mercedes-Benz S-Class, BMW 7-Series, and Lexus LS.

Pros & Cons

Pros

✅ Quattro AWD Standard – Excellent grip in all weather conditions.

✅ Luxurious Interior – High-quality materials, massaging seats in higher trims.

✅ Powerful Engine Options – From efficient V6 to high-performance V8 & W12.

✅ Advanced Technology – Audi MMI, Virtual Cockpit, adaptive cruise, night vision.

✅ Great Highway Comfort – Quiet cabin, smooth ride with air suspension.

Cons

❌ High Maintenance Costs – Expensive air suspension, transmission, and timing chain repairs.

❌ Carbon Buildup in DI Engines – Requires walnut blasting every 60,000 miles.

❌ Electronics & MMI Glitches – Infotainment can be slow or freeze.

❌ W12 Models Costly to Maintain – Finding parts and servicing can be difficult.

Key Recalls

• • Timing Chain Tensioner (2010–2013): NHTSA 13V-443 (replaced faulty tensioners to prevent engine damage).
  • Airbag (2010–2016): NHTSA 16V-356 (Takata airbag recall).
  • Fuel Pump (2012–2014): NHTSA 14V-284 (replaced faulty fuel pumps that could cause engine stalling).

Recommendations

• • Check Recalls: Verify open recalls using Audi’s recall lookup tool or the NHTSA VIN database.
  • Monitor Oil Levels: Regularly check and top off oil, especially in V8 models.
  • Inspect the Transmission: Address rough shifting early; consider a fluid flush if not done.
  • Update MMI Software: Visit a dealership for the latest firmware.
  • Test the Battery: Check for parasitic drain and replace if necessary.

Reliability Note

The 2010–2017 Audi A8, A8L, and S8 are luxurious and performance-oriented vehicles, but the timing chain issue (V8 models) and air suspension failures are critical concerns. Regular maintenance and prompt recall repairs will help avoid major issues. Always prioritize pre-purchase inspections for used models.

Final Verdict

The 2010-2017 Audi A8/S8 is a high-tech, luxurious, and powerful full-size sedan with strong AWD performance and premium features. However, maintenance costs can be high, especially for air suspension, timing chains, and transmission.

👉 Verdict: Best for buyers seeking a premium, AWD luxury sedan with modern tech & comfort, but maintenance costs should be considered. 🚗💨