Luxury Cars Guide

PCV Failure - Reliability Guide & Repair Costs

Understanding PCV Failure

Comprehensive analysis of PCV Failure, including affected engines, models, and cost-saving repair strategies.

Affected Vehicles & Guides

The following detailed guides cover PCV Failure specifically for the listed models.

Audi 2.9T (EA839) Engine Reliability: The Definitive Guide (2025)

The definitive guide to Audi 2.9T (EA839) reliability. Rocker arm failure, turbo issues, and ownership costs for RS5, RS4, and Porsche.

Reliability: 68 /100 Read Guide →

Audi 4.0T V8 Reliability: The Definitive Guide (EA824 Hot-V Twin-Turbo)

The definitive guide to Audi 4.0T V8 reliability. Turbo oil screen recall, PCV failures, and carbon buildup in RS6, RS7, S6, S7, and S8.

Reliability: 64 /100 Read Guide →

Audi 4.0T vs Mercedes M278: The Ultimate Hot-V Twin-Turbo V8 Comparison

Audi 4.0T vs Mercedes M278: Which is more reliable? Comprehensive comparison of failure modes, repair costs, and long-term ownership.

Reliability: 65 /100 Read Guide →

Audi RS6 C7 Reliability: The 560hp Wagon Gamble

Is the Audi RS6 C7 Avant reliable? A brutally honest guide to owning the 4.0T V8 wagon. Turbo oil screen recall, PCV failures, air suspension.

Reliability: 62 /100 Read Guide →

Audi RS7 Common Problems: The 560hp Sportback Reliability Guide

The breakdown of Audi RS7 C7 reliability. Common failures with 4.0T V8: turbo oil screen recall, PCV failures, ZF 8-speed transmission.

Reliability: 63 /100 Read Guide →

Audi S4 B9 (3.0T/2.9T) Reliability: The Rocker Arm & Water Pump Reality

Is the Audi S4 B9 reliable? Detailed analysis of the EA839 engine's rocker arm failure, water pump leaks, and total ownership costs.

Reliability: 74 /100 Read Guide →

Audi S6/S7 4.0T Problems: The 420hp Sedan/Sportback Reliability Guide

The breakdown of Audi S6/S7 C7 reliability. Common failures with 4.0T V8: turbo oil screen recall, PCV failures, DSG transmission issues.

Reliability: 65 /100 Read Guide →

Audi S8 D4 Engine Issues: The 520hp Flagship Reliability Guide

The breakdown of Audi S8 D4 reliability. Common failures with 4.0T V8: turbo oil screen recall, PCV failures, air suspension issues.

Reliability: 61 /100 Read Guide →

Audi SQ5 B9 Reliability: Air Suspension & Rocker Arm Risks

Is the Audi SQ5 B9 reliable? Complete guide to the EA839 3.0T engine, air suspension failures, and cost of ownership.

Reliability: 70 /100 Read Guide →
Disclaimer: Repair costs are estimates based on independent specialist rates. Dealer prices will significantly exceed these figures.