Engine Overview and Common Failures
The BSE engine number is located at the front, at the junction of the engine with the transmission. Oil consumption. This is a fairly reliable engine and the main complaints from owners are related to oil consumption. By the mileage of 150-200 thousand km, oil scraper caps or rings wear out and oil consumption appears. Decarbonization usually does not help, it is necessary to dismantle the engine. Floating RPMs. The cause of the engine's unstable operation may be a clogged mesh in the fuel pump, a simple crack in the ignition coil or oxidation of its high-voltage contacts, as well as air leaks through the intake or drive belt pulley of the variable geometry system. Timing belt breakage. The timing belt replacement according to the manuals is done every 120,000 km, but if it breaks earlier, then the valves in the engine simply bend. Moreover, the water pump hangs on this belt, which can not only slip, but also leak directly onto the belt, reducing its lifespan. Other shortcomings. This power unit regularly has oil leakage from under the valve cover, cracks in the exhaust manifold between cylinders 3 and 4, loss of tightness of injectors, and also destruction of contacts in the connectors of the throttle drive.