exhaust-gas turbocharger the housing of the charger is cut in a way you can see compression wheel, turbine wheel and bearings the two sides are marked by colours: compression side – blue, turbine side – red all parts can be easily moved description ordernumber 1004 see also: in-line type injection pump with electronic control Injection timing device, in-line pump Diesel engine of a VW Golf with transmission Electric turbocharger (e-booster)