How to carry out replacement: Gearbox Oil and Transmission Oil 2.5 TDI quattro Audi A6 C5 Avant
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Change Audi A6 C5 Avant 1.9 TDI Gearbox Oil and Transmission Oil yourself – manuals and video tutorials

How to change manual gearbox oil on AUDI A6 Avant (4B5, C5) – replacement guide

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When to replace the Gearbox Oil and Transmission Oil on your AUDI A6
Recommended replacement interval for the part category Automatic transmission fluid : 60000 km
Important!
This replacement procedure can be used for:
AUDI A6 Avant (4B5, C5) 1.9 TDI, AUDI A6 Avant (4B5, C5) 1.8, AUDI A6 Avant (4B5, C5) 2.8 quattro, AUDI A6 Avant (4B5, C5) 1.8 T, AUDI A6 Avant (4B5, C5) 2.4, AUDI A6 Avant (4B5, C5) 2.8, AUDI A6 Avant (4B5, C5) 1.8 T quattro, AUDI A6 Avant (4B5, C5) 2.4 quattro, AUDI A6 Avant (4B5, C5) 2.5 TDI, AUDI A6 Avant (4B5, C5) 2.5 TDI quattro, AUDI A6 Avant (4B5, C5) 2.7 T, AUDI A6 Avant (4B5, C5) 2.7 T quattro, AUDI A6 Avant (4B5, C5) 2.4, AUDI A6 Avant (4B5, C5) 1.8 T quattro, AUDI A6 Avant (4B5, C5) 1.8 T, AUDI A6 Avant (4B5, C5) S6 quattro, AUDI A6 Avant (4B5, C5) 2.5 TDI, AUDI A6 Avant (4B5, C5) 2.5 TDI quattro, AUDI A6 Avant (4B5, C5) 1.9 TDI, AUDI A6 Avant (4B5, C5) 1.8, AUDI A6 Avant (4B5, C5) 2.8, AUDI A6 Avant (4B5, C5) 2.8, AUDI A6 Avant (4B5, C5) 2.4, AUDI A6 Avant (4B5, C5) 2.0, AUDI A6 Avant (4B5, C5) 2.4, AUDI A6 Avant (4B5, C5) 2.4 quattro, AUDI A6 Avant (4B5, C5) 2.5 TDI, AUDI A6 Avant (4B5, C5) 2.7 T quattro, AUDI A6 Avant (4B5, C5) 3.0, AUDI A6 Avant (4B5, C5) 3.0 quattro, AUDI A6 Avant (4B5, C5) 1.9 TDI, AUDI A6 Avant (4B5, C5) 2.4, AUDI A6 Avant (4B5, C5) 2.4 quattro, AUDI A6 Avant (4B5, C5) 2.5 TDI, AUDI A6 Avant (4B5, C5) 2.4 quattro, AUDI A6 Avant (4B5, C5) 3.0, AUDI A6 Avant (4B5, C5) 3.0 quattro … View more

The steps may slightly vary depending on the car design.

This video shows the replacement procedure of a similar car part on another vehicle

All the parts you need to replace – Gearbox Oil and Transmission Oil for A6 Avant (4B5, C5) and other AUDI models
Alternative products
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Tools
Replacement: manual gearbox oil – AUDI A6 Avant (4B5, C5). List of the tools you'll need:
Wire brush
All-purpose cleaning spray
HEX bit No.H17.
Drive socket # 12
Phillips screwdriver
Torque wrench
Funnel
Oil drain pan
Fender cover
Buy tools
Replacement: manual gearbox oil – AUDI A6 Avant (4B5, C5). AUTODOC recommends:
  • All work should be done with the engine stopped.
Replacement: manual gearbox oil – AUDI A6 Avant (4B5, C5). Recommended sequence of steps:
  1. Step 1
    Open the hood.
    Step 2
    Use a fender protection cover to prevent damaging paintwork and plastic parts of the car.
    Step 3
    Lift the car using a jack or place it over an inspection pit.
    Replacement: manual gearbox oil – AUDI A6 Avant (4B5, C5). Tip:
    The vehicle must be on even keel, and if it is at an angle, the drain plug must be at the lowest point.
    Step 4
    How to change Gearbox Oil and Transmission Oil on Audi A6 C5 Avant 1997 - free PDF and video manuals
    Unscrew the fasteners of the lower sound insulation. Use a drive socket #12. Use a Phillips screwdriver.
  2. Step 5
    How to replace AUDI A6 Avant (4B5, C5) 2.5 TDI quattro 1998 Gearbox Oil and Transmission Oil - step-by-step manuals and video guides
    Remove the lower sound insulation.
  3. Step 6
    Audi A6 C5 Avant 1.9 TDI 1999 Gearbox Oil and Transmission Oil replacement: free workshop manuals
    Clean the area of the oil pan drainage hole. Use a wire brush. Use all-purpose cleaning spray.
    AUTODOC recommends:
    Replacement: manual gearbox oil – AUDI A6 Avant (4B5, C5). After applying the spray, wait a few minutes.
  4. Step 7
    Changing Gearbox Oil and Transmission Oil on AUDI A6 Avant (4B5, C5) 2.5 TDI 2000 by yourself
    Put a waste oil container with at least 2 l capacity under the drainage hole.
  5. Step 8
    How to remove AUDI A6 1.8 T 2001 Gearbox Oil and Transmission Oil - online easy-to-follow instructions
    Unscrew the drain plug. Use HEX No.H17.
  6. Step 9
    How to replace Gearbox Oil and Transmission Oil on AUDI A6 Avant (4B5, C5) 2002: download PDF manuals and video instructions
    Drain the used oil.
    Replacement: manual gearbox oil – AUDI A6 Avant (4B5, C5). AUTODOC experts recommend:
    Caution! The oil may be hot.
  7. Step 10
    How hard is it to do yourself: Gearbox Oil and Transmission Oil replacement on Audi A6 C5 Avant 1.8 T quattro 2003 - download illustrated guide
    Clean the area around the gearbox housing filler hole. Use a wire brush. Use all-purpose cleaning spray.
    Replacement: manual gearbox oil – AUDI A6 Avant (4B5, C5). Tip from AUTODOC:
    After applying the spray, wait a few minutes.
  8. Step 11
    Need to know how to renew Gearbox Oil and Transmission Oil on AUDI A6 2004? This free workshop manual will help you to do it yourself
    Unscrew the filler plug of the gearbox housing. Use HEX No.H17.
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