Removing and installing air filter elements - vehicles with manual gearbox/R tronic gearbox 086 — AUDI

🧭 Before you start

Fits: platform code 42

Don't miss

• Disregard (items 2, 4).

🔧 Engine codes this applies to

📐 1 workshop diagram for BUJ

Real factory drawings for this job — timing marks, bolt locations and routing. Locked in the free view.

📋 Procedure

1. Fit protective cover on bodywork .
2. Unplug electrical connectors from air mass meter 2G246(2) and unplug electrical connector from air mass meter G70(4).
3. Unscrew bolts (arrows) for air cleaner (top section).
4. Release the two hose clips (1) and (3).
5. Detach air cleaner (top section).

6. Take out air filter elements. [Note: Disregard (items 2, 4).] [Note: If the air filter elements are severely contaminated or soaked, dirt particles or moisture could ingress as far as the air mass meters and bias the measured air mass value. This would lead to loss of power, since a smaller injection quantity is calculated.Always use genuine parts for air filter elements.The air cleaner housing MUST be clean.Secure all hose connections with the correct type of hose clips (same as original equipment) Electronic parts catalogue.To prevent malfunctions, cover all critical parts of the engine air intake tract (air mass meter, intake pipes, etc.) with a clean cloth when blowing out the air cleaner housing with compressed air.Please observe requirements for disposal.]
7. Blow out water drain (small hole in bottom section of air cleaner) with compressed air.
8. Clean salt residue, dirt and leaves out of air cleaner housing (top and bottom sections); use a vacuum cleaner if necessary.
9. Check for salt residue, dirt and leaves in air mass meters and air intake hoses (engine intake side).
10. Check air ducts leading to air cleaner housing for dirt and leaves
11. Carefully insert the two air filter elements into the grooves (1) and (2).
12. Carefully fit top section of air cleaner onto bottom section, without using any force.
13. ⚠ Risk of damage to carbon air cleaner (top section).Only tighten bolts (arrow) for air cleaner (top section) after inserting rubber washers between bolts and air cleaner. — Ensure that the air hoses are securely seated on the two air mass meters.
14. Install air mass meter .

🎬 Related video tutorial

Independent AUTODOC tutorial for the same job, filmed on a different model (A4 B8 Saloon) — the technique carries over, the fasteners and figures on this page are the ones for your car.

How to change air filter on AUDI A4 B8 Saloon

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