NHTSA ID Number: 10203512
Manufacturer Communication Number: QRSB Audi
A8 A8L
TSB/Document Date: 2021-11-15
Summary
Quick reference specification book.
Lower Timing Chain Cover
Tightening Specification (cont'd)
Replace any bolts that were tightened with an additional turn.
Steps 7 to 9
7
Tighten bolts 1 through 4 in sequence
8
Tighten bolts 1 through 4 in sequence
9
Tighten bolts 1 through 4 in sequence
Nm
Remove the
steel bolts
M6x20
3
Engine –
3.0L CPNA (TDI)
Steps Component
an additional
90° (¼ turn)
Audi A8/A8L/S8 Quick Reference Specification Book • September 2013
29
Vehicles with Magnesium Upper Oil Pan
The steel bolts must be replaced with aluminum bolts (steps
6 - 8) after all bolts have been tightened on vehicles with
magnesium oil pan upper sections (identifying feature: letter
combination MRI (Æ) on the oil pan upper section).
30
Audi A8/A8L/S8 Quick Reference Specification Book • September 2013
Cylinder Head Tightening Specifications
Replace any bolts that were tightened with an additional turn.
Step
Component
Nm
Tighten bolts 1 through 8 in sequence
Hand-tighten
2
Tighten bolts 1 through 8 in sequence
35
3
Tighten bolts 1 through 8 in sequence
70
4
Tighten bolts 1 through 8 in sequence
5
Tighten bolts 1 through 8 in sequence
an additional
90° (¼ turn)
an additional
90° (¼ turn)
Engine –
3.0L CPNA (TDI)
1
Audi A8/A8L/S8 Quick Reference Specification Book • September 2013
31
Left Cylinder Head Cover Tightening Specification
Replace any bolts that were tightened with an additional turn.
Step
1
32
Component
Tighten bolts 1 through 7 in sequence
Nm
Hand-tighten
2
Tighten bolts 1 through 7 in sequence
8
3
Tighten bolts 1 through 7 in sequence
an additional
90° (¼ turn)
Audi A8/A8L/S8 Quick Reference Specification Book • September 2013
Right Cylinder Head Cover Tightening Specification
Replace any bolts that were tightened with an additional turn.
Step
1
Component
Tighten bolts 1 through 7 in sequence
Nm
Hand-tighten
Tighten bolts 1 through 7 in sequence
8
Tighten bolts 1 through 7 in sequence
an additional
90° (¼ turn)
Engine –
3.0L CPNA (TDI)
2
3
Audi A8/A8L/S8 Quick Reference Specification Book • September 2013
33
Cylinder Bank 1 (Right) Bearing Cap
Tightening Specification
34
Component
Nm
1
Tighten bolts 1 through 12 in sequence
Hand-tighten
2
Tighten bolts 1 through 12 in sequence
9
Audi A8/A8L/S8 Quick Reference Specification Book • September 2013
Cylinder Bank 2 (Left) Bearing Cap
Tightening Specification
Step
Component
Nm
Tighten bolts 1 through 12 in sequence
Hand-tighten
2
Tighten bolts 1 through 12 in sequence
9
Engine –
3.0L CPNA (TDI)
1
Audi A8/A8L/S8 Quick Reference Specification Book • September 2013
35
Lubrication – 3.0L CPNA
Fastener Tightening Specifications
Component
Cap with oil filter by-pass valve
Chain sprocket for the oil pump bolt 1)
Engine oil cooler
Engine oil cooler thermostat cap 1)
Guide tube for the oil dipstick
Mounting plate for the engine oil cooler
Oil baffle bolt 1)
Oil drain plug
Oil filter housing bolt
Oil level thermal sensor-to-oil pan
Oil pressure regulation valve
Oil pressure switch
Oil return pipe-to-oil pump
Reduced oil pressure switch
Upper oil pan drain plug
Vacuum line from the vacuum pump 2)
- Bolt 1)
- Bolt
1)
2)
Nm
35
30 plus an
additional 45°
(⅛ turn)
9
3 plus an
additional 90°
(¼ turn)
9
9
3 plus an
additional 90°
(¼ turn)
30
9
9
9
20
9
20
25
3 plus an
additional 45°
(⅛ turn)
9
Replace fastener(s).
For bolt tightening clarification, refer to ElsaWeb, Upper Oil Pan Overview, items 19
and 21.
36
Audi A8/A8L/S8 Quick Reference Specification Book • September 2013
Upper Oil Pan Tightening Specifications
Replace any bolts that were tightened with an additional turn.
Step
1
Component
Tighten bolts 1 through 12 in sequence
Nm
2
Tighten bolts 1 through 12 in sequence
5
Tighten bolts 1 through 12 in sequence
an additional
90° (¼ turn)
Engine –
3.0L CPNA (TDI)
2
3
Audi A8/A8L/S8 Quick Reference Specification Book • September 2013
37
Oil Pan Tightening Specifications
Replace any bolts that were tightened with an additional turn.
Step
1
2
3
38
Component
Tighten bolts 1 through 15 in sequence
Tighten bolts 1 through 15 in sequence
Tighten bolts 1 through 15 in sequence
Nm
2
3
an additional
90° (¼ turn)
Audi A8/A8L/S8 Quick Reference Specification Book • September 2013
Oil Pump with Vacuum Pump
Tightening Specification
Replace any bolts that were tightened with an additional turn.
Step
Component
Nm
Tighten bolts 1 to 3 in sequence
Hand-tighten
2
Tighten bolts 1 to 3 in sequence
8
3
Tighten bolts 1 to 3 in sequence
an additional
90° (¼ turn)
Engine –
3.0L CPNA (TDI)
1
Audi A8/A8L/S8 Quick Reference Specification Book • September 2013
39
Cooling System – 3.0L CPNA
Fastener Tightening Specifications
Component
Check valve bolts
Coolant connection bolts
Coolant fan bolts
Coolant lines
- Banjo bolt
- Bolt
Coolant pump to engine bolts
Coolant pump ribbed belt pulley bolts 1)
Coolant shut-off valve
Engine Coolant Temperature (ECT) sensor
Fan wheel bolts
Front coolant pipe bolts
Left coolant pipe bolts
Left lower coolant pipe bolts
Rubber buffer bolt
Transmission coolant valve bolts
Upper left coolant pipe nut/bolt
1)
Nm
9
9
3.5
12
9
9
23
9
9
5
9
9
9
3.5
9
9
Tighten diagonally in steps.
40
Audi A8/A8L/S8 Quick Reference Specification Book • September 2013
Fuel Supply – 3.0L CPNA
Fastener Tightening Specifications
Component
Accelerator pedal module
Air filter housing
Bracket for fuel filter 1)
- Bolt
- Bolt
Carrier plate bolt
Fuel cooler bolts
Fuel filler neck
- Bolt
- Nut
Fuel pump control module to bracket nut
Nm
8
23
Fuel tank heat shield to fuel tank bolt
Locking flange cover bolt
Locking ring
Mounting strap bolts
23
1.5
120
23
23
2.5
1.6
For bolt tightening clarification, refer to ElsaWeb, Fuel Filter Overview, items 2 and
16.
Engine –
3.0L CPNA (TDI)
1)
2.1
5.5
23
1.5
Audi A8/A8L/S8 Quick Reference Specification Book • September 2013
41
Locking Flange Cover Tightening Specification
Step
1
42
Component
Tighten bolts (Æ) in a diagonal sequence
Nm
1.5
Audi A8/A8L/S8 Quick Reference Specification Book • September 2013
Turbocharger, Supercharger – 3.0L CPNA
Fastener Tightening Specifications
Component
Air guide pipe
Air guide pipe bracket bolts
Bracket for charge air cooler
Bracket for connector and engine cover
Charge air cooler bolts
Charge air cooler bolts (Hot Climate version)
Charge air pressure sensor/intake air temperature
sensor
Charge air pressure sensor/intake air temperature
sensor (Hot Climate version)
Connection for air guide hose
Coolant supply line bolts 1)
Coolant supply line bolts 2)
Coolant supply line connections
Exhaust manifold bolts 3) 4)
Particulate filter nut 3) 4)
Rear air guide bolt
Screw-type clamps
- 9 mm wide
- 13 mm wide
1)
2)
3)
9
9
9
8
25
30 plus an
additional 90°
(¼ turn)
23
1.7
3.4
5.5
For bolt tightening clarification, refer to ElsaWeb, Turbocharger Overview, item 32.
For bolt tightening clarification, refer to ElsaWeb, Turbocharger Overview, item 8.
Replace fasteners.
Coat the thread with hot bolt paste..
Engine –
3.0L CPNA (TDI)
4)
Nm
9
8
9
9
3.5
9
3.5
Audi A8/A8L/S8 Quick Reference Specification Book • September 2013
43
Turbocharger Tightening Specification
Replace the stud bolts and the nuts.
Step
1
2
3
4
5
6
7
44
Component
Stud bolts for the nuts 1 and 2
Tighten bolts and nuts 1 and 2
Tighten bolts and nuts 1 and 2
Tighten bolts and nuts 1 and 2
Tighten bolts 3 to 5 in sequence
Tighten bolts 3 and 4 in sequence
Tighten bolt 5
Nm
10
Hand-tighten
9
an additional
90° (¼ turn)
Hand-tighten
9
23
Audi A8/A8L/S8 Quick Reference Specification Book • September 2013
Exhaust System, Emission Controls – 3.0L
CPNA
Fastener Tightening Specifications
Component
Base place for reducing agent metering system control
module
Clamp for reducing agent injector
Clamping sleeve nut
Connection to EGR cooler
Coolant connection
EGR cooler bolt
EGR cooler bleeder screw
EGR temperature sensor
- at the aluminum EGR cooler
- at the steel EGR cooler
Engine temperature control temperature sensor bolt
Exhaust gas recirculation motor bolt
Exhaust gas temperature sensor 2)
Exhaust manifold 1) 2)
- Bolt
- Nut
Exhaust pressure sensor 1 2)
Particulate filter with catalytic converter nut 1) 2)
Particle sensor 2)
Pressure pipe for differential pressure sensor
Reducing agent tank bolt
Screw-type clamp
- Part number 059 131 548 C
- Part number 059 131 548 D
Selective Catalytic Reduction (SCR) - catalytic converter
- 💯【Conta.ct us for Support Directly】If you met any...
- 🔥🔥🔥【2026 AUTEL FLAGSHIP MK900BT MK900-BT, NEW...
- 🚗【3000+ ACTIVE TESTS (50➡3000+), SAME AS MS...
- 🚗【40+ HOT SERVICES FOR 150 MAKES (28+➡40+)】Full...
- 🚗【OE ALL SYSTEM DIAGNOSE, AUTO SCAN 2.0: SCAN LICENSE...
- 【TURN OFF CEL】 This AL319 car scanner diagnostic tool...
- 【EXTENSIVE APPLICATION】 Autel AL319 Compatible with...
- 【FOR END USER & DIYERS】 This error code reader AL319 is...
- 【USER-FRIENDLY DESIGN】 This OBD2 scanner and check...
- 【HIGH-QUALITY SERVICES】 12 months war.ranty from the...
If the PDF is very large, it may not load in the preview below.
Some older TSBs had multiple PDFs — visit the NHTSA Website to view all PDFs.
If the TSB PDF does not show, download or view it on the NHTSA Website.
Click on the (+) Plus Sign
Then Click on Associated Document(s)
Search NHTSA Database for Recalls
Search NHTSA Database for Vehicle Investigations
View Latest Vehicle Investigations
Search NHTSA Database for Vehicle Complaints
View Latest Vehicle Complaints
TSB/Document ID: QRSB Audi A8 A8L
Replacement Service Bulletin Number:
MFR Communication Date: 2013-09-01
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
- [Notice] When you receive a used device, it may be a customer return resold by Amazon without inspection. You can exchange it for a new one through Amazon. As this situation is unavoidable, we sincerely apologize. For any issues, contacting us via Amazon's "Messages" is the best way. THINKSCAN 689BT Bidirectional Scan Tool Can Be Used Immediately After It is Turned On, Without Complicated Registration Process, Which is More Convenient & Quick.
- Full Bi-Directional Control & 3000+ Active Tests: Take control and test components like actuators, fuel injectors, relays, and cooling fans in real time. You’ll quickly see if the problem is in the part itself or the control module — saving you hours of guesswork and frustrating trial-and-error.
- Advanced ECU Coding Capabilities: Handle module matching and hidden feature activation with confidence. When you replace an ECU or want to customize settings, this obd2 scanner diagnostic bi directional tool gives you the professional-level capabilities you need without the dealership price tag.
- 34+ Useful Reset and Maintenance Functions: Complete everyday service tasks smoothly with a wide range of helpful reset and maintenance functions. Whether you’re keeping up with regular upkeep or tackling a specific job, this scanner makes maintenance simpler and less stressful for both DIYers and pros.
- Comprehensive Full System Diagnostics: Diagnose every major system — Engine, Transmission, ABS, SRS, TPMS, and more — all in one place. Finally stop wondering if you’re missing something important; get the full picture and clear codes with ease.
- Top Reasons to Choose the D7S OBD2 Scanner: XTOOL D7S car scan tool, an upgrade of XTOOL D7, offers comprehensive features for automotive technicians, workshops, and DIY enthusiasts 1. Upgraded Hardware: 2+64GB memory, rear camera, intuitive interface, foldable bracket 2. Complete Diagnostics: FCA
Autoauth, OE-level all system scan, 39+ maintenance services, 4K+ bidirectional, CANFD/DoIP protocol 3. Advanced Capabilities: ECU c0ding, PMI functions 4. Wide Compatibility: Support 10,000+ models, covering 99% vehicle brands 5. Multi-language: Available in 22+ languages, No IP Restrictions 6. 3-Year Updates: Save 300 bucks on software updates for the latest features and optimizations - 2026 Upgraded D7S Car Scanner Features: The newly 2026 D7S V2.0 scanner for car brings exciting features for advanced vehicle diagnostics and enhanced user experience 1. FCA AutoAuth: Now supports FCA SGW module for Chrysler, for Jeep, for Dodge (2018+), for Fiat (2017+), enabling faster vehicle communication without gateway restrictions 2. PMI (Offline ECU Pr0gramming): Allows for Ford, for Lincoln, and for Mazda ECU pr0gramming for new modules 3. Optimized Diagnostic Report 2.0: Personalized reports with logos and customer info for auto shops. Note: Compatibility varies by cars, please check before order
- 39+ Services/Resets/Adaptations/Relearns/Calibrations: XTOOL D7S full system car scanner diagnostic tool tackles 99% of common car issues through its 36+ special functions, including Oil Reset, EPB, SAS, BMS, Throttle Reset, Injector C0ding, ABS Bleed, TPMS Reset, Power Balance, etc and also covers specific-vehicle functions like Crank Sensor Relearn, ABS Initialization, Cylinder Power Balance, Fuel Trim Reset, Idle Relearn etc. This car diagnostic scanner enhances efficiency, making repairs and maintenance hassle-free. Tip: DO NOT for All vehicles, please check compatibility first
- Cost-effective ECU C0ding Scan Tool for Specific Brands: Enhance your vehicle's performance with XTOOL D7S! This obd2 scanner all systems bidirectional offers advanced capabilities at an affordable price, supports online for BMW, for Benz and offline for BENZ, for MIT, along with PMI functions for Ford, for Mazda, and for Lincoln. Ideal for technicians and DIY enthusiasts, this automotive scanner diagnostic tool optimizes vehicle performance and enhances the driving experience. Note: Not for all cars and modules, please send car VIN to check the compatibility before purchase
- OE All System Diagnostic & 8 Pids Graphing: XTOOL D7S is a comprehensive all system bi directional obd2 scanner that delivers dealer-level diagnostics, completely controlling over your vehicle’s performance and health. This automotive scan tool can read and clear DTCs, view live data and ECU information, retrieve freeze frames, and perform active tests and full obd2 functions. This bi-directional scan tool can can identify your vehicle's make, model, and year information with just one click and show up to 8 PIDs live data with options for CSV viewing, playback, and recording for in-depth analysis. It is easy-to-use for both professionals and beginners, helping pinpoint issues efficiently
- 【✅Compared to BOSSCOMM IF742, IF745 Offers Full-System Diagnostics】The BOSSCOMM IF745 car diagnostic scanner is an upgraded model of IF742. In addition to supporting all OBD2 Code Reader functions and 6 reset options (ABS/EPB/SAS/BMS/Oil/Throttle), it expands diagnostics from 4 systems (Check Engine/ABS/SRS/Transmission) to vehicle All systems, including Steering, Suspension, and Body Electronics. This provides deeper, more comprehensive diagnostic capabilities.
- 【✨10 OBD2 Functions】The BOSSCOMM IF745 scan tool’s DTC Lookup instantly translates fault codes into user-friendly explanations, its I/M Readiness feature streamlines emissions testing with a single tap, and Freeze Frame lets you pinpoint the exact moment of a fault for in-depth root-cause diagnosis. Combined with a live data dashboard and advanced diagnostics (O2S, OBMon, EVAP), it delivers comprehensive insights for confident troubleshooting.
- 【✨Deep Diagnostics for All Vehicle System Modules】Beyond code reading/clearing and ECU information retrieval, our all-in-one data stream feature lets you inspect all current fault codes and their locations across the vehicle’s systems. This vehicle code reader helps you turn off dashboard warning lights and perform a comprehensive self-check of your car at home—no more back-and-forth trips to the repair shop or hefty inspection fees.
- 【✨6 Essential Resets: ABS Bleeding, Oil, EPB, SAS, Throttle, BMS】The BOSSCOMM IF745 obd2 scanner diagnostic tool swiftly purges air from brake lines to restore braking sensitivity, fine-tunes maintenance cycles to eliminate false alerts, resolves parking brake issues with one-click control, recalibrates steering sensors for stability, optimizes engine idling/acceleration for smoother performance, and deeply resets battery systems to extend lifespan and range via precise parameter adjustments.❗NOTE: Does NOT support bidirectional control, coding, or programming.
- 【✨10,000+ Car Models, AutoVIN, 13 Languages】The BOSSCOMM IF745 vehicle scanner diagnostic tool covers 73+ global car brands and offers support in 13 languages, making it perfect for DIYers, auto mechanics, or as a thoughtful gift. With a single-click AutoVIN feature, it instantly retrieves vehicle serial numbers, streamlining diagnostics for users globally. This adaptable tool balances user-friendliness with precision, catering to both personal and professional requirements.✅Unsure about compatibility? Compatibility will vary on vehicles' model and year, pls reach us via 📧 [email protected] 📧 before purchase.
This product presentation was made with AAWP plugin.