2006 Audi A4 Repair Manual

Detailed repair and diagnostic procedures for Audi A4 1.8T, 2.0T, 2.4, 2.7T, 3.2 models. Includes diagrams and specifications for all engine systems. Publication C4085-91017

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Technical Safety Notice
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This official OEM document is intended for professional technicians and skilled operators. Performing service on mechanical equipment involves inherent risks. By purchasing, you acknowledge that RepairLoader provides original manufacturer data for informational purposes. Always prioritize safety: use correct tools, wear protective gear, and consult a certified professional if you are uncertain of any procedure.

Audi Models Covered & Key Technical Specifications

Models: Audi A4
Sub-models / Variants: 2.0 Liter 4-Cyl. 4V Turbo
Build Years: 2002–2008
Technical Data:

  • Engine codes: BGB, BPG, BWE, BUL, BYK, BPJ, BWT
  • Engine displacement: 1.984 ltr
  • Cylinder bore: 82.5 mm
  • Stroke: 92.8 mm
  • Compression ratio: 10.3–10.5
  • Ignition sequence: 1-3-4-2
  • Knock sensor torque: 20 Nm
  • Fuel pressure sensor torque: 15 Nm
  • Flywheel bolt torque: 60 Nm + 90° or 60 Nm + 180° (varies by bolt length)
Technical Specifications
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Document Number / Seller:
28833 / Kenneth Jones
File Size:
439.95 MB
File Type:
ZIP
Language:
English
Printable:
Yes
Category:
Car
Last updated / verified
Aug 18, 2025

Audi Manual Features & Content Preview

2006 Audi A4 2.0L Turbo Engine Documentation

  • Covers the 2002–2008 Audi A4 equipped with 2.0L 4-Cyl. 4V Turbo engines including BPG and BWT engine codes
  • Original OEM publication P/N C4085-91017
  • Includes 162 exploded-view figures, 8 detailed torque specification tables, and comprehensive engine assembly/disassembly workflows
  • Downloads to your account within seconds of checkout
  • Your order stays downloadable from your account for life
  • Laid out for standard letter and A4 printing
  • OCR text layer lets you jump to a torque spec by keyword
  • This 100-page manual is the primary reference for servicing the 2.0L turbo assembly, covering everything from belt tensioning to sealing flange replacement

Engine Mechanical and Assembly Details

This technical reference documentation provides extensive information for the 2.0L 4-cylinder turbocharged engine platform. Chapters detail the removal and installation of major engine sub-assemblies, including the lock carrier, toothed belt drive systems, and various sensors like the MAF, coolant temperature, and oil pressure units. The text emphasizes cleanliness standards when handling fuel injection components, turbochargers, and automatic or manual transmissions.

Technical Specifications and Data

The manual provides critical reference values for engine identification and assembly. Engine output for the BPG code is 147 kW at 5700 rpm, with a standard compression ratio of 10.5. Intake air temperature sensor G42 and throttle valve control module J338 references are included for diagnostic review. Tightening specifications are clearly organized: knock sensors require 20 Nm, while flywheel bolts follow a multi-stage sequence starting at 60 Nm. Intake manifold runners and electrical connections are thoroughly mapped for what an OEM service publication covers. An official 100-page Audi OEM workshop manual covering the 2002–2008 Audi A4, documenting engine, mechanical, and electrical specifications for the 2.0L 4-cylinder turbo build.

Document Reference: Part No. C4085-91017

Manual FAQ, Purchase & Download Details

Can I find technical engine specifications and output data in this 2006 Audi A4 manual? keyboard_arrow_down

Document includes comprehensive technical data tables that list displacement, output, torque, bore, stroke, compression ratios, and ignition sequences for the specified engine codes.

Which chapters or sections provide reference values for engine data and technical limits? keyboard_arrow_down

General technical data section contains detailed specification tables covering engine code variants and their respective performance metrics. These tables act as a reference for baseline values such as engine displacement, output, and cylinder dimensions.

What system information is available regarding electrical connectors, sensors, and engine assembly components? keyboard_arrow_down

Manual features numerous exploded views and diagrams that identify electrical harness connectors for sensors, headlights, horns, and the engine control module. Additionally, the assembly chapters list the positioning of various air ducts, coolant hoses, and mechanical brackets. Safety and cleanliness rules are also provided for handling sensitive fuel and electronic systems.

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