Worst 2003 Audi A4 Problems #1: On Board Computer Stopped Working 2003 A4 Average Cost to Fix: $8,500 Average Mileage: 52,000 mi. Learn More #2: Defective Trasmission 2003 A4 Feb 10, 2008 · The 3.0 is less likely to have an oil leak like the other engines though, since it has different cam timing engineering (no chain or chain tensioner seals to leak!). Things that might need attention; Vacuum lines, Secondary Air pump and lines, other smog junk like the combi valves. Sep 22, 2022 · Turbine Shaft Bearing Wear. The turbine shaft bearing wear is a common problem leading to turbocharger failures in the Audi A4 models. The turbos consist of a turbine wheel and a compressor that is driven by the engine's exhaust gasses. The turbine wheel spins using the hot exhaust gasses coming from the engine. Jul 15, 2022 · Be smart and use the right tool for the job. Figure 9 Remove the two lines coming out from the master cylinder (red arrows). Figure 10 If you are replacing the master and especially if you are also replacing the booster it is a good idea to completely remove the brake lines from the master cylinder to the ABS unit. 2006 Audi A4 1.8T transmission/motor problems 1 Answer. I have an 2006 Audi A4 1.8T with 99K miles. I am trying to decide if I need to get the Powertrain (transmission and motor) coverage only on it. The cost is $1450 for 3 years/30K miles. Have anyone Jun 22, 2019 · If the battery is dead, it either isn’t storing enough voltage or it isn’t charging enough. A bad alternator can cause your battery to drain to the point it can’t turn your A4 over. Suspect the alternator if the battery light stays on after charging your car’s battery or jumping it. 3. Starter Motor. wbD1D0d.

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