Luxury Cars Guide
Severity: 9/10 - Critical Audi TECHNICAL ARCHIVE

Turbo Oil Strainer Clogging Database: Audi 4.0T V8 (EA824)

The most famous failure in modern Audi history. One tiny screen can destroy two turbos in seconds. Learn the TSB 2044640 recall details.

Affected Models

Audi S6 (C7) Audi S7 (C7) Audi S8 (D4) Audi RS7 (C7)

Failure Window

40,000 - 80,000 miles

*Critical inspection required before this range.

Technical Breakdown

The Audi 4.0T uses a ‘Hot-V’ configuration where the oil is supplied to the turbos via a central oil module. Inside this module is a mesh screen smaller than a thumbnail.

The TSB 2044640 Recall

Audi issued a mandatory recall to replace this screen with a revised version with larger mesh openings. However, many enthusiasts opt to delete the screen entirely or use the Melett/JHM external filter kits.

Prevention vs. Cure

  • Prevention: $1,500 for a specialist to pull the turbos and swap/delete the screen.
  • Cure: $10,000+ if the turbo shaft snaps and sends impeller fragments into the intake valves.

Failure Summary Dashboard

Symptoms
  • Turbo screeching
  • Low boost warning
  • Metallic shards in oil
  • Complete loss of power
Root Cause

A tiny mesh screen designed to protect the turbos from debris clogs with carbonized oil, starving the turbo bearings.

Est. Repair Cost

USD 1,500 - 10,000

Values vary by region and labor rates.

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