Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2018 Audi S8FACTORY OEM SERVICE PROCEDURE
Repair and Diagnosis
You are viewing the "split tree" of links. The tree is cut off at a certain depth to keep the page loading fast, but you may have to click multiple links to get to the content you want.
View "full tree" with all links on one page (will load slowly, but easier to use ctrl-f to search all pages)
View "full tree" with all links on one page (will load slowly, but easier to use ctrl-f to search all pages)
Quick Lookups
- Accessories & Equipment
- Anti-Theft Systems
- Collision/Avoidance
- Adaptive Cruise Control (Acc) System (Calibration)
- Driver Assistance Systems (Front Camera Calibration)
- Driver Assistance Systems (Front Camera)
- Infrared System
- Infrared System (Calibration)
- Lane Change Assistance System
- Parallel Parking Assist System
- Parking Aid System
- Peripheral Camera System
- Rearview Camera System
- Wheels, Tires, Wheel Alignment (Suspension, Wheels, Steering)
- Cruise Control Systems
- Drivers Assistance Systems - ADAS
- Adaptive Cruise Control (Acc) System (Calibration)
- Driver Assistance Systems (Front Camera Calibration)
- Driver Assistance Systems (Front Camera)
- Infrared System
- Infrared System (Calibration)
- Lane Change Assistance System
- Parallel Parking Assist System
- Parking Aid System
- Peripheral Camera System
- Rearview Camera System
- Wheels, Tires, Wheel Alignment (Suspension, Wheels, Steering)
- Entertainment Systems
- Exterior Lights
- Gauges & Instrument Panels
- Infotainment
- Interior/Exterior Trim
- Interior/Illumination Lights
- Mirrors
- Seats
- Steering Column Switches
- Warning Systems
- Window Motors & Regulators
- Wiper/Washer Systems
- Wiring System (Data Link Connectors, Pwr Dist., Grnd Dist.)
- Body & Frame
- Brakes
- Drivelines & Axles
- Electrical
- Engine Mechanical
- Blowers, Superchargers & Turbochargers
- Cooling Fan
- Cooling System (Mechanical)
- Exhaust
- Exhaust System, Emission Controls [CEUA,CGTA,CTFA,CTGA,CTGF,DDTA]
- General, Technical Data (0BKA,0BK)
- General, Technical Data (Body Exterior)
- General, Technical Data (Body Interior)
- General, Technical Data (Brakes)
- General, Technical Data (Fuel System - Gasoline Engines)
- General, Technical Data (Suspension)
- General, Technical Data [CEUA,CGTA,CTFA,CTGA,CTGF,DDTA]
- General, Technical Data [CEUA,CTNA,CPNA,CTGA,CGXC,CTGF,CDTA,CDTB,CTEC,CTUB,CMDA,CDSB,CREA,CEJA,CTBB,CDRA,CLAB,CGWA,CDTC,CTDA,CREC,CREG,CTBD,CTBA,CPNB,CGTA,CGWD,CPAA,CHJA,CVBA,DDTA,CTFA,CMHA]
- General, Technical Data [CPNB,CREC,CTFA,CTGA,CTNA,CDRA,CEJA,CEUA,CGTA,CPNA,CGXC,CTUB,CTGF,DDTA]
- Fuel System
- Fuel Supply (EVAP System)
- Fuel Supply [CDRA,CGWA,CGXC,CMDA,CEJA,CEUA,CGTA,CHJA,CGWD,CTUB,CPAA,CEUE,CTGA,CTGD,CTFA,CREA,CTNA,CREC,CREG,CTDA,CTGF,CVBA,DDTA,CYPA]
- General, Technical Data (0BKA,0BK)
- General, Technical Data (Body Exterior)
- General, Technical Data (Body Interior)
- General, Technical Data (Brakes)
- General, Technical Data (Fuel System - Gasoline Engines)
- General, Technical Data (Suspension)
- General, Technical Data [CEUA,CGTA,CTFA,CTGA,CTGF,DDTA]
- General, Technical Data [CEUA,CTNA,CPNA,CTGA,CGXC,CTGF,CDTA,CDTB,CTEC,CTUB,CMDA,CDSB,CREA,CEJA,CTBB,CDRA,CLAB,CGWA,CDTC,CTDA,CREC,CREG,CTBD,CTBA,CPNB,CGTA,CGWD,CPAA,CHJA,CVBA,DDTA,CTFA,CMHA]
- General, Technical Data [CPNB,CREC,CTFA,CTGA,CTNA,CDRA,CEJA,CEUA,CGTA,CPNA,CGXC,CTUB,CTGF,DDTA]
- MULTIPORT Fuel Injection [CEUA,CGTA,CTFA,CTGA,CTGF,DDTA]
- Lubrication System
- General, Technical Data (0BKA,0BK)
- General, Technical Data (Body Exterior)
- General, Technical Data (Body Interior)
- General, Technical Data (Brakes)
- General, Technical Data (Fuel System - Gasoline Engines)
- General, Technical Data (Suspension)
- General, Technical Data [CEUA,CGTA,CTFA,CTGA,CTGF,DDTA]
- General, Technical Data [CEUA,CTNA,CPNA,CTGA,CGXC,CTGF,CDTA,CDTB,CTEC,CTUB,CMDA,CDSB,CREA,CEJA,CTBB,CDRA,CLAB,CGWA,CDTC,CTDA,CREC,CREG,CTBD,CTBA,CPNB,CGTA,CGWD,CPAA,CHJA,CVBA,DDTA,CTFA,CMHA]
- General, Technical Data [CPNB,CREC,CTFA,CTGA,CTNA,CDRA,CEJA,CEUA,CGTA,CPNA,CGXC,CTUB,CTGF,DDTA]
- Lubrication [CEUA,CGTA,CTFA,CTGA,CTGF,DDTA]
- Mechanical
- Crankshaft, Cylinder Block [CEUA,CGTA,CTFA,CTGA,CTGF,DDTA]
- Cylinder Head, VALVETRAIN [CEUA,CGTA,CTFA,CTGA,CTGF,DDTA]
- Engine Assembly [CEUA,CGTA,CTFA,CTGA,CTGF,DDTA]
- General, Technical Data (0BKA,0BK)
- General, Technical Data (Body Exterior)
- General, Technical Data (Body Interior)
- General, Technical Data (Brakes)
- General, Technical Data (Fuel System - Gasoline Engines)
- General, Technical Data (Suspension)
- General, Technical Data [CEUA,CGTA,CTFA,CTGA,CTGF,DDTA]
- General, Technical Data [CEUA,CTNA,CPNA,CTGA,CGXC,CTGF,CDTA,CDTB,CTEC,CTUB,CMDA,CDSB,CREA,CEJA,CTBB,CDRA,CLAB,CGWA,CDTC,CTDA,CREC,CREG,CTBD,CTBA,CPNB,CGTA,CGWD,CPAA,CHJA,CVBA,DDTA,CTFA,CMHA]
- General, Technical Data [CPNB,CREC,CTFA,CTGA,CTNA,CDRA,CEJA,CEUA,CGTA,CPNA,CGXC,CTUB,CTGF,DDTA]
- Engine Performance
- Emissions
- Fuel Delivery
- Fuel Supply (EVAP System)
- Fuel Supply [CDRA,CGWA,CGXC,CMDA,CEJA,CEUA,CGTA,CHJA,CGWD,CTUB,CPAA,CEUE,CTGA,CTGD,CTFA,CREA,CTNA,CREC,CREG,CTDA,CTGF,CVBA,DDTA,CYPA]
- General, Technical Data (0BKA,0BK)
- General, Technical Data (Body Exterior)
- General, Technical Data (Body Interior)
- General, Technical Data (Brakes)
- General, Technical Data (Fuel System - Gasoline Engines)
- General, Technical Data (Suspension)
- General, Technical Data [CEUA,CGTA,CTFA,CTGA,CTGF,DDTA]
- General, Technical Data [CEUA,CTNA,CPNA,CTGA,CGXC,CTGF,CDTA,CDTB,CTEC,CTUB,CMDA,CDSB,CREA,CEJA,CTBB,CDRA,CLAB,CGWA,CDTC,CTDA,CREC,CREG,CTBD,CTBA,CPNB,CGTA,CGWD,CPAA,CHJA,CVBA,DDTA,CTFA,CMHA]
- General, Technical Data [CPNB,CREC,CTFA,CTGA,CTNA,CDRA,CEJA,CEUA,CGTA,CPNA,CGXC,CTUB,CTGF,DDTA]
- MULTIPORT Fuel Injection [CEUA,CGTA,CTFA,CTGA,CTGF,DDTA]
- Ignition System
- General, Technical Data (0BKA,0BK)
- General, Technical Data (Body Exterior)
- General, Technical Data (Body Interior)
- General, Technical Data (Brakes)
- General, Technical Data (Fuel System - Gasoline Engines)
- General, Technical Data (Suspension)
- General, Technical Data [CEUA,CGTA,CTFA,CTGA,CTGF,DDTA]
- General, Technical Data [CEUA,CTNA,CPNA,CTGA,CGXC,CTGF,CDTA,CDTB,CTEC,CTUB,CMDA,CDSB,CREA,CEJA,CTBB,CDRA,CLAB,CGWA,CDTC,CTDA,CREC,CREG,CTBD,CTBA,CPNB,CGTA,CGWD,CPAA,CHJA,CVBA,DDTA,CTFA,CMHA]
- General, Technical Data [CPNB,CREC,CTFA,CTGA,CTNA,CDRA,CEJA,CEUA,CGTA,CPNA,CGXC,CTUB,CTGF,DDTA]
- Ignition/Glow Plug System [CEUA,CGTA,CTFA,CTGA,CTGF,DDTA]
- Remove, Overhaul & Install
- General, Technical Data (0BKA,0BK)
- General, Technical Data (Body Exterior)
- General, Technical Data (Body Interior)
- General, Technical Data (Brakes)
- General, Technical Data (Fuel System - Gasoline Engines)
- General, Technical Data (Suspension)
- General, Technical Data [CEUA,CGTA,CTFA,CTGA,CTGF,DDTA]
- General, Technical Data [CEUA,CTNA,CPNA,CTGA,CGXC,CTGF,CDTA,CDTB,CTEC,CTUB,CMDA,CDSB,CREA,CEJA,CTBB,CDRA,CLAB,CGWA,CDTC,CTDA,CREC,CREG,CTBD,CTBA,CPNB,CGTA,CGWD,CPAA,CHJA,CVBA,DDTA,CTFA,CMHA]
- General, Technical Data [CPNB,CREC,CTFA,CTGA,CTNA,CDRA,CEJA,CEUA,CGTA,CPNA,CGXC,CTUB,CTGF,DDTA]
- Specifications
- Tune-Up
- General, Technical Data (0BKA,0BK)
- General, Technical Data (Body Exterior)
- General, Technical Data (Body Interior)
- General, Technical Data (Brakes)
- General, Technical Data (Fuel System - Gasoline Engines)
- General, Technical Data (Suspension)
- General, Technical Data [CEUA,CGTA,CTFA,CTGA,CTGF,DDTA]
- General, Technical Data [CEUA,CTNA,CPNA,CTGA,CGXC,CTGF,CDTA,CDTB,CTEC,CTUB,CMDA,CDSB,CREA,CEJA,CTBB,CDRA,CLAB,CGWA,CDTC,CTDA,CREC,CREG,CTBD,CTBA,CPNB,CGTA,CGWD,CPAA,CHJA,CVBA,DDTA,CTFA,CMHA]
- General, Technical Data [CPNB,CREC,CTFA,CTGA,CTNA,CDRA,CEJA,CEUA,CGTA,CPNA,CGXC,CTUB,CTGF,DDTA]
- Ignition/Glow Plug System [CEUA,CGTA,CTFA,CTGA,CTGF,DDTA]
- General Information
- Abbreviations
- Basic Trouble Shooting
- Brakes
- Check Lists
- Driveline/Axles
- DTC Index
- Electrical
- Engine
- Engine Performance
- Electrostatic Discharge Warning - General Information
- Engine Performance Diagnostic Routine Outline - General Information
- Engine Performance Safety Precautions
- Map - Engine Performance & Maintenance
- Parasitic Load Explanation & Test Procedures - General Information
- State Emission Standards - Diesel
- State Emission Standards - Gas
- Waveforms - Injector Pattern Tutorial - General Information
- Map - Exhaust Systems
- Heating, Ventilation & A/C (HVAC)
- Hoist/Jack
- Identification
- Metric Conversions
- OEM General Information
- Reset Procedures
- Specifications Index
- Steering
- Towing
- Traction Control Disable Procedures
- Trouble Shooting - Manual Transmission - General Information
- Heating, Ventilation & A/C (HVAC)
- A/C Compressor
- General Servicing
- Air Conditioning (Refrigerant R1234YF Servicing) (1 Of 2)
- Air Conditioning (Refrigerant R1234YF Servicing) (2 Of 2)
- Air Conditioning (Refrigerant R134A Servicing) (1 Of 3)
- Air Conditioning (Refrigerant R134A Servicing) (2 Of 3)
- Air Conditioning (Refrigerant R134A Servicing) (3 Of 3)
- GENERAL, TECHNICAL DATA (REFRIGERANT R1234yf SERVICING)
- Technical Data (HVAC)
- HVAC Control Systems
- A/C SYSTEM (1 Of 4)
- A/C SYSTEM (2 Of 4)
- A/C SYSTEM (3 Of 4)
- A/C SYSTEM (4 Of 4)
- Air Conditioning (Refrigerant R1234YF Servicing) (1 Of 2)
- Air Conditioning (Refrigerant R1234YF Servicing) (2 Of 2)
- Air Conditioning (Refrigerant R134A Servicing) (1 Of 3)
- Air Conditioning (Refrigerant R134A Servicing) (2 Of 3)
- Air Conditioning (Refrigerant R134A Servicing) (3 Of 3)
- GENERAL, TECHNICAL DATA (REFRIGERANT R1234yf SERVICING)
- Heating
- Technical Data (HVAC)
- Maintenance
- Procedures
- GENERAL INFORMATION (1 of 2)
- GENERAL INFORMATION (2 of 2)
- Maintenance Reminder Light (Reset Procedures)
- Maintenance, Diagnosis (Fluid Capacity)
- Maintenance, Diagnosis (General Information)
- Maintenance, Diagnosis (Maintenance Intervals)
- Maintenance, Diagnosis (Maintenance Schedule - 2018)
- Maintenance, Diagnosis (Maintenance Schedule/Intervals)
- Maintenance, Diagnosis (Pre-Delivery Inspection)
- Schedule
- Procedures
- Restraints
- Steering
- Suspension
- Transmission
- External Pages
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.
