leak Troubleshooting

Water leaking from pump on the Bosch AdvancedAquatak 140

Source: Bosch support — power tool troubleshooting Confidence: 80% Verified Aug 9, 2026

Water leaks from the pump housing, usually from a worn seal or a loose fitting.

How to fix Water leaking from pump

Tighten fittings

Check and tighten all hose and pump fittings.

Source: ProductDB new-categories research catalog Confidence: 80% Verified Aug 8, 2026
Difficulty: ★ Est. 5 min

Replace the pump seal kit

If the leak persists, replace the pump seal kit following the service manual.

Source: ProductDB new-categories research catalog Confidence: 80% Verified Aug 8, 2026
Difficulty: ★★★ Est. 45 min

Check the hoses

Inspect the hoses for damage and replace if needed.

Source: Bosch support — power tool troubleshooting Confidence: 80% Verified Aug 9, 2026
Difficulty: ★ Est. 5 min

Parts needed: Bosch AdvancedAquatak140 High-Pressure Hose

Replace the O-rings

Replace the O-rings on the connections.

Source: Bosch support — power tool troubleshooting Confidence: 80% Verified Aug 9, 2026
Difficulty: ★ Est. 10 min

Replacement parts for the Bosch AdvancedAquatak 140

Bosch AdvancedAquatak 140 Pump Oil Bosch AdvancedAquatak 140 Pump Seal Kit Bosch AdvancedAquatak 140 Water Inlet Filter Bosch AdvancedAquatak140 Nozzle Bosch AdvancedAquatak140 High-Pressure Hose Bosch AdvancedAquatak140 Spray Gun Bosch AdvancedAquatak140 O-Ring Set Bosch AdvancedAquatak140 Detergent

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