Volkswagen Workshop Service and Repair Manuals > Golf Mk4 > Power unit | 4-cylinder diesel engine, mechanics | Exhaust turbocharger, G-charger | Charge air system with turbocharger

Turbocharger wiring connections

Engine code AGR

1 -	Charge pressure control solenoid valve -N75-

2 -	Air guide pipe from air cleaner

3 -	Turbocharger with pressure connection for charge air control

4 -	Wastegate pressure unit

Engine code AHF, ALH, ASV

1 -	Charge pressure control solenoid valve -N75-

2 -	To exhaust gas recirculation valve -N18-.

3 -	To air cleaner

4 -	Vacuum reservoir

5 -	Wastegate pressure unit

6 -	Turbocharger

7 -	To intake manifold changeover valve -N239-

8 -	Non-return valve, white connection points to charge air control solenoid valve -N75-

Volkswagen Workshop Service and Repair Manuals