The exhaust system is an intricate construct. Running underneath the car, it comprises of the exhaust manifold, Y pipe, catalytic converter, particulate filter, pre-muffler, middle muffler, rear muffler and the corresponding connecting pipes. Each of these parts play a crucial role in the engine running properly and fuel efficient.
Reducing the noise generated by the engine drastically, the exhaust system would mostly be attributed to the ride comfort. However, the primary task of the exhaust system is conducting the combustion gases of the engine past the driver's cab into the open air. Noise caused by combustion is reduced to the permissible volume by integrated mufflers. For exhaust gas purification, catalytic converters or particulate filters are also installed in modern motor vehicles with internal combustion engines.
Leaks in the exhaust system would result in loss of pressure in the system or the gasses not being properly channelled through the catalytic converter. The latter issue can become a problem as the catalytic converter also contains several sensors. These sensors provide data to the engine management system. Should the readings be wrong, the engine will be fed with insufficient or too much fuels, either situation resulting in inefficient engine performance. Higher fuel consumption would be a typical result.
An engine with a turbocharger depends on exhaust gases to drive the turbo. A leak in the exhaust system, reducing the pressure available to drive the turbo will manifest itself in lower boost pressure. Both, engine and turbocharger need to be working as intended in order to work in perfect harmony. The developers of the engine mated these two components with intention.
German Motors will be able to spot leaks and recommend the best course of action to rectify the issue. Our colleagues point out that a leaking exhaust system can pose a significant risk to passengers as toxic gases could potentially enter the cabin. It pays to be listening to the running car every now and then as the most obvious sign of an exhaust leak is a change in engine sound. Hearing hissing, popping, or metallic rattling—especially when accelerating – can be a sign of a leaking exhaust. The exhaust sound might be noticeably louder. As the exhaust systems of modern cars are also protected by cladding and covers, you may have difficulties performing a visual inspection, especially, if you have no safe way to get underneath the vehicle. Here, German Motors can offer their services as the workshop is equipped with hoists.
