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Home >> Mercedes Benz >> 2005 >> S600 >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Climate Control -- Basic Knowledge -- 215 & 220 Chassis >> Basic Knowledge >> Duovalve, function - GF83.20-P-2100 >> Duo valve, location - GF83.20-P-2100-02M

Duo valve, location - GF83.20-P-2100-02M

The duo valves (A31/1y1, A31/1y2) are located next to the rear air conditioning's coolant recirculation pump (A31/1m1) in the rear right wheelhouse.

Fig 1: Identifying Duo Valve And Coolant Circulation Pump Location
G04851357