leak Troubleshooting

Water leaking from pump on the Stihl RE 142 Plus

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: Stihl RE142Plus 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 Stihl RE 142 Plus

Stihl RE 142 Plus Pump Oil Stihl RE 142 Plus Pump Seal Kit Stihl RE 142 Plus Water Inlet Filter Stihl RE142Plus Nozzle Stihl RE142Plus High-Pressure Hose Stihl RE142Plus Spray Gun Stihl RE142Plus O-Ring Set Stihl RE142Plus Detergent

← All Stihl RE 142 Plus error codes

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