🔍 Step 1 – Vacuum Test
Set the XDC50 to “Vehicle Drain” mode.
Block the nylon hose with your finger.
➡️ Result interpretation:
Gauge reading | Diagnosis |
Vacuum gauge < 0.70 bar | 🔧 Venturi potentially clogged |
Vacuum gauge ≥ 0.70 bar | ⚠️ Issue with the hose + rubber cone |
🧪 Checks to perform
Nylon hose
🔄 Hose bent → Replace
Rubber cone
❌ Worn or scratched → Replace
Elbow connector
🔄 Leaking or hose no longer secured → Cut 2 cm off the hose and reattach ➤ Otherwise, replace the whole assembly
Reinforced hose
🔥 Pierced or burned → Cut off the damaged section and reattach ➤ Otherwise, replace
🧼 Venturi cleaning
⚠️ Warning: Drain the fresh fluid tank before servicing.
Disassembly steps:
Open the panel on the “Fresh Fluid Valve” side ➤ Use a 6 mm Allen key ➤ Unscrew 3 screws
Unclip the 2 hoses and remove the panel
3. Dismantle the valve + silencer assembly
4. Remove the fresh fluid tank support ➤ 2 mm Allen key ➤ Unscrew 4 screws
5. Unclip the 4 hoses and extract the Venturi
6. Clean and blow out the Venturi port with compressed air
🔄 Reassembly
Reinstall the Venturi and the dismantled components.
Test again in “Vehicle Drain” mode.
Block the nylon hose (rubber cone) with your finger.
Check that the vacuum gauge exceeds 0.70 bar.
📞 If not conclusive:
Contact the hotline at +33 4 77 92 13 00 📧 or by email at: reclamation@sam.eu