How long should an Audi timing chain last?
The maintenance schedules for the timing chain in an Audi state that one can easily go 120,000 miles without any problems. However, service technicians are seeing Audi timing chains fail much sooner. For an internal combustion engine to operate properly, it must exhibit exact, mechanical engine timing.
How do I know if my timing chain is bad on my Audi?
Rattling, clicking, or odd noises when the vehicle is idling Odd sounds should be an immediate red flag that something is not functioning properly. A timing chain that is loose, wearing out, or breaking down will vibrate and shake which can lead to unusual sounds under your hood.
How do I know if my timing chain needs to be replaced?
When to Change the Timing Chain
- Timing chain noise.
- Engine misfire and poor performance.
- Difficulty in starting the vehicle.
- Illuminated check engine light.
- Engine vibration or shaking when idling.
- Engine won’t start.
Is the 2.0 FSI reliable?
The 2.0 turbo FSI (Engine Code BWA) is the most reliable inline 4 modern engine made by VW group. That engine is nigh unkillable.
Where is the timing chain on an Audi 4.2?
While most cars have their timing chain mounted on the front of the engine block, the Audi 4.2 V8 actually has it located on the back side of the engine. Therefore, to replace the timing chain you have to pull the whole engine, resulting in dozens of hours of labor.
What causes timing chain to fail on 4.2 V8?
The 4.2 V8 timing chains fail for a number of reasons. First off, the chains naturally stretch over time and need to be replaced. While they generally should last the life of the car, infrequent oil changes and engine overheating can cause the chain to stretch more quickly than normal.
Why is the Audi 4.2 V8 a bad car?
The Audi 4.2 V8 gets a very bad rap for reliability because of timing chain failure. While this is a very common problem, it’s only part of the reason the engine has a bad reputation. While most cars have their timing chain mounted on the front of the engine block, the Audi 4.2 V8 actually has it located on the back side of the engine.
What does variable valve timing do on Audi V8?
Audi’s V8 engines use variable valve timing technology, commonly referred to as VVT or Vanos. The system variable alters the position of the camshaft, allowing for more precise intake and exhaust valve timing. The system uses a VVT Solenoid which is actuated via oil pressures to control the camshaft timing.