Strong emissions control regulations have vastly reduced the amount of exhaust that Audi cars generate.
Most of the time, you will not particularly notice the exhaust coming from your Audi.
When your car exhaust develops a nasty smell, though, it is a sign of trouble.
The most common smells that car exhaust can develop are: • • •
Rotten eggs Cloying sweetness Gasoline
It is important to address the issue before further engine problems develop.
There are several measures that can help reduce exhaust fumes in your Audi.
Oil burning becomes irregular, engine performance is compromised, and excess exhaust fumes can result.
The oil filter removes debris before oil passes through the engine.
When it becomes clogged, though, even fresh, new oil can get stuck and leads to increased exhaust fumes.
Air that enters your Audi engine can also introduce dust, debris, and dirt.
The air filter traps these particles, helping to keep the engine clean.
Like the oil filter, if the air filter is clogged, increased exhaust fumes can result.
The PCV (positive crankcase ventilation) valve is in control of the engine emissions.
As it ages, the PCV valve tends to build up a layer of sludge, consisting of old oil and debris.
This prevents it from doing its job of lowering emissions, allowing an excess of exhaust fumes to escape.
The fuel filter is responsible for cleaning dust and debris out of your Audi’s gasoline before it is distributed to the engine.
Like the other filters in your car, it can become clogged over time.
This allows debris to get into the engine, causing it to burn excess fuel and raising the level of exhaust that is released.
Exhaust fumes can come from many different parts of your car’s engine and filtration systems.
It is important to have your car checked out by a qualified technician as soon as possible.
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