07.1-500 Vacuum diagrams
Engine 601 model year 1988 and model year 1989/90
Vacuum circuit diagram exhaust gas recirculation with manual transmission or without AC compressor
Y27 | Change-over valve AGR |
Y28 | Change-over valve vacuum control flap |
a | Ventilation to vehicle interior |
b | Key cut-out |
c | Remaining users |
e | To brake booster |
1 | Injection pump |
2 | Governor |
4 | PLA unit |
5 | ADA unit |
6 | Vacuum unit (stop) |
60 | ARF valve |
61b | Choke orange |
61c | Choke 0.5 mm orifice diameter |
61d | Choke (yellow) |
62 | Filter |
62b | Ventilation filter with choke orifice dia. 0.13 mm |
62c | Ventilation filter |
65 | Vacuum control valve |
67 | Vacuum pump |
72 | Damper |
99 | Vacuum control flap |
100 | Vacuum unit/vacuum control flap |
128a | Thermovalve closes at approx. 30 °C (green aluminum) |
140 | Check valve brake booster |