Why charger over turbocharger

However, in conjunction with a malfunction of the EGR valve, these points can lead to failure of the modern turbocharger with VTG technology again in cases where all errors have been eliminated but the EGR valve has not been replaced.

Soot and other deposits (burned oil) stick to the VTG unit. This means that it no longer closes or opens properly.

If the VTG unit no longer closes completely, no loader pressure builds up in the lower speed range, and thus no more power.

17. Black smoke
Black smoke is mainly caused by soot particles that collect in the exhaust when driving slowly or when idling. If the journey continues at higher engine speeds, the small particles are blown out and form a black cloud. Often the dark clouds appear on cars with diesel engines. If a diesel engine is very sooty, this can mean, among other things, that the engine is not getting enough oxygen for clean combustion. This could be due to a dirty air filter, for example. In the case of vehicles with a soot particle filter, this must be checked in any case, as a clogging of the turbocharger can break down as a consequence.

18. Blue smoke
If blue smoke rises from the exhaust, this is usually due to unburned fuel or engine oil in the exhaust gases. This can have many causes - from a high proportion of fuel in the exhaust gas during a cold start, which is harmless, to leaks in the oil circuit to poor spray atomization due to material wear. If there is still colored smoke after a long journey, a visit to the workshop is definitely recommended to prevent major problems.